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        <full_title>The Open Dentistry Journal</full_title>
        <abbrev_title>TODENTJ</abbrev_title>
        <issn media_type="print">1874-2106</issn>
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          <day>9</day>
          <year>2012</year>
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          <title>Causes of Adverse Pregnancy Outcomes and the Role of Maternal Periodontal Status – A Review of the Literature</title>
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          <person_name contributor_role="author" sequence="first">
            <given_name>Jagan Kumar</given_name>
            <surname>Baskaradoss</surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Amrita </given_name>
            <surname>Geevarghese </surname>
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          <person_name contributor_role="author" sequence="additional">
            <given_name>Abdullah Al Farraj</given_name>
            <surname>Al Dosari</surname>
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                <jats:p>Preterm (PT) and Low birth weight (LBW) are considered to be the most relevant biological determinants of newborn infants survival, both in developed and in developing countries. Numerous risk factors for PT and LBW have been defined in the literature. Infections of the genitourinary tract infections along with various biological and genetic factors are considered to be the most common etiological factors for PT/LBW deliveries. However, evidence suggests that sub-clinical infection sites that are also distant from the genitor-urinary tract may be an important cause for PT/LBW deliveries. Maternal periodontal status has also been reported by many authors as a possible risk factor for PT and LBW, though not all of the actual data support such hypothesis. The aim of this paper is to review the evidence from various published literature on the association between the maternal periodontal status and adverse pregnancy outcomes. Although this review found a consistent association between periodontitis and PT/LBW, this finding should be treated with great caution until the sources of heterogeneity can be explained.</jats:p>
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        <citation_list>
          <citation key="refR1">
            <journal_title>World Health Organ
Wkly Epidemiol Rec [Weekly Report]</journal_title>
            <volume>59</volume>
            <first_page>205</first_page>
            <cYear>1984</cYear>
            <unstructured_citation>
                    The incidence of low birth weight: an update 
                    World Health Organ
Wkly Epidemiol Rec [Weekly Report]  
                    1984; 
                    59
                    : 205-11.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR2">
            <journal_title>Lancet</journal_title>
            <author> Goldenberg RL</author>
            <volume>371</volume>
            <first_page>75</first_page>
            <cYear>2008</cYear>
            <unstructured_citation>
                     Goldenberg RL, Culhane JF, Iams JD, Romero R. 
                    Epidemiology
and causes of preterm birth 
                    Lancet  
                    2008; 
                    371
                    (9606)
                    : 75-84.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR3">
            <journal_title>Rev Saude Publica</journal_title>
            <author> Cruz SS</author>
            <volume>39</volume>
            <first_page>782</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Cruz SS, Costa Mda C, Gomes Filho IS, Vianna MI, Santos CT. 
                    
Maternal periodontal disease as a factor associated with low birth
weight 
                    Rev Saude Publica  
                    2005; 
                    39
                    (5)
                    : 782-.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR4">
            <journal_title>World Health Stat Q</journal_title>
            <volume>33</volume>
            <first_page>197</first_page>
            <cYear>1980</cYear>
            <unstructured_citation>
                    The incidence of low birth weight: a critical review of available
information 
                    World Health Stat Q  
                    1980; 
                    33
                    (3)
                    : 197-224.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR5">
            <journal_title>Am J Obstet Gynecol
</journal_title>
            <author> Goldenberg RL</author>
            <volume>175</volume>
            <first_page>1317</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Goldenberg RL, Cliver SP, Mulvihill FX, et al. 
                    Medical psychosocial
and behavioral risk factors do not explain the increased risk
for low birth weight among black women 
                    Am J Obstet Gynecol
  
                    1996; 
                    175
                    (5)
                    : 1317-24.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR6">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Goldenberg RL</author>
            <volume>192</volume>
            <first_page>S36</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Goldenberg RL, Goepfert AR, Ramsey PS. 
                    Biochemical markers
for the prediction of preterm birth 
                    Am J Obstet Gynecol  
                    2005; 
                    192
                    (5 Suppl)
                    : S36-46.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR7">
            <journal_title>National Institute of Child
Health and Human Development Maternal-Fetal Medicine Units
Network. Am J Obstet Gynecol</journal_title>
            <author> Copper RL</author>
            <volume>175</volume>
            <first_page>1286</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Copper RL, Goldenberg RL, Das A, et al. 
                    The preterm prediction
study: maternal stress is associated with spontaneous preterm birth
at less than thirty-five weeks' gestation 
                    National Institute of Child
Health and Human Development Maternal-Fetal Medicine Units
Network Am J Obstet Gynecol  
                    1996; 
                    175
                    (5)
                    : 1286-92.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR8">
            <journal_title>
Scand J Soc Med</journal_title>
            <author> Nordstrom ML</author>
            <volume>24</volume>
            <first_page>55</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Nordstrom ML, Cnattingius S, et al. 
                    Effects on birthweights of maternal
education socio-economic status and work-related characteristics 
                    
Scand J Soc Med  
                    1996; 
                    24
                    (1)
                    : 55-61.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR9">
            <journal_title>Early Hum Dev</journal_title>
            <author> Verkerk PH</author>
            <volume>32</volume>
            <first_page>121</first_page>
            <cYear>1993</cYear>
            <unstructured_citation>
                     Verkerk PH, van Noord-Zaadstra BM, Florey CD, de Jonge GA, 
Verloove-Vanhorick SP. 
                    The effect of moderate maternal alcohol
consumption on birth weight and gestational age in a low risk
population 
                    Early Hum Dev  
                    1993; 
                    32
                    (2-3)
                    : 121-9.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR10">
            <journal_title>Yonsei
Med J</journal_title>
            <author> Marakoglu I</author>
            <volume>49</volume>
            <first_page>200</first_page>
            <cYear>2008</cYear>
            <unstructured_citation>
                     Marakoglu I, Gursoy UK, Marakoglu K, Cakmak H, Ataoglu T. 
                    
Periodontitis as a risk factor for preterm low birth weight 
                    Yonsei
Med J  
                    2008; 
                    49
                    (2)
                    : 200-3.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR11">
            <journal_title>J Periodontol</journal_title>
            <author> Romero BC</author>
            <volume>73</volume>
            <first_page>1177</first_page>
            <cYear>2002</cYear>
            <unstructured_citation>
                     Romero BC, Chiquito CS, Elejalde LE, Bernardoni CB. 
                    Relationship
between periodontal disease in pregnant women and the
nutritional condition of their newborns 
                    J Periodontol  
                    2002; 
                    73
                    (10)
                    : 1177-83.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR12">
            <journal_title>
JAMA</journal_title>
            <author> Conde-Agudelo A</author>
            <volume>295</volume>
            <first_page>1809</first_page>
            <cYear>2006</cYear>
            <unstructured_citation>
                     Conde-Agudelo A, Rosas-Bermudez A, Kafury-Goeta AC. 
                    Birth
spacing and risk of adverse perinatal outcomes: a meta-analysis 
                    
JAMA  
                    2006; 
                    295
                    (15)
                    : 1809-23.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR13">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Mercer BM</author>
            <volume>181</volume>
            <first_page>1216</first_page>
            <cYear>1999</cYear>
            <unstructured_citation>
                     Mercer BM, Goldenberg RL, Moawad AH, et al. 
                    The preterm
prediction study: effect of gestational age and cause of preterm
birth on subsequent obstetric outcome.National Institute of Child
Health and Human Development Maternal-Fetal Medicine Units
Network.  
                    Am J Obstet Gynecol  
                    1999; 
                    181
                    (5 Pt 1)
                    : 1216-21.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR14">
            <journal_title>BJOG</journal_title>
            <author> Romero R</author>
            <volume>113</volume>
            <first_page>17</first_page>
            <cYear>2006</cYear>
            <unstructured_citation>
                     Romero R, Espinoza  J, Kusanovic JP. 
                    The preterm parturition
syndrome 
                    BJOG  
                    2006; 
                    113
                    ( Suppl 3 )
                    : 17-42.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR15">
            <journal_title>JAMA</journal_title>
            <author> Goldenberg RL</author>
            <volume>275</volume>
            <first_page>1127</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Goldenberg RL, Tamura T. 
                    Prepregnancy weight and pregnancy
outcome 
                    JAMA  
                    1996; 
                    275
                    (14)
                    : 1127-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR16">
            <journal_title>Am J Obstet Gynecol
</journal_title>
            <author> Hendler I</author>
            <volume>192</volume>
            <first_page>882</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Hendler I, Goldenberg RL, Mercer BM, et al. 
                    The Preterm
Prediction Study: association between maternal body mass index
and spontaneous and indicated preterm birth 
                    Am J Obstet Gynecol
  
                    2005; 
                    192
                    (3)
                    : 882-6.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR17">
            <journal_title>Obstet Gynecol</journal_title>
            <author> Hediger ML</author>
            <volume>74</volume>
            <first_page>6</first_page>
            <cYear>1989</cYear>
            <unstructured_citation>
                     Hediger ML, Scholl TO, Belsky DH, Ances IG, Salmon RW. 
                    
Patterns of weight gain in adolescent pregnancy: effects on birth
weight and preterm delivery 
                    Obstet Gynecol  
                    1989; 
                    74
                    (1)
                    : 6-12.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR18">
            <journal_title> Am J Obstet Gynecol</journal_title>
            <author> Newman RB</author>
            <volume>184</volume>
            <first_page>438</first_page>
            <cYear>2001</cYear>
            <unstructured_citation>
                     Newman RB, Goldenberg RL, Moawad AH, et al. 
                    Occupational
fatigue and preterm premature rupture of membranes.National
Institute of Child Health and Human Development Maternal-Fetal
Medicine Units Network 
                     Am J Obstet Gynecol  
                    2001; 
                    184
                    (3)
                    : 438-6.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR19">
            <journal_title>Obstet Gynecol</journal_title>
            <author> Pompeii LA</author>
            <volume>106</volume>
            <first_page>279</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Pompeii LA, Savitz DA, Evenson KR, Rogers B, McMahon M. 
                    
Physical exertion at work and the risk of preterm delivery and
small-for-gestational-age birth 
                    Obstet Gynecol  
                    2005; 
                    106
                    (6)
                    : 279-88.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR20">
            <journal_title>Obstet Gynecol</journal_title>
            <author> Gavin NI</author>
            <volume>106</volume>
            <first_page>1071</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Gavin NI, Gaynes BN, Lohr KN, Meltzer-Brody S, Gartlehner G, 
Swinson T. 
                    Perinatal depression: a systematic review of prevalence
and incidence 
                    Obstet Gynecol  
                    2005; 
                    106
                    (5 Pt 1)
                    : 1071-83.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR21">
            <journal_title>Psychosom Med
</journal_title>
            <author> Dayan J</author>
            <volume>68</volume>
            <first_page>938</first_page>
            <cYear>2006</cYear>
            <unstructured_citation>
                     Dayan J, Creveuil C, Marks MN, et al. 
                    Prenatal depression prenatal
anxiety and spontaneous preterm birth a prospective cohort
study among women with early and regular care 
                    Psychosom Med
  
                    2006; 
                    68
                    (6)
                    : 938-46.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR22">
            <journal_title>Paediatr Perinat
Epidemiol</journal_title>
            <author> Hoffman S</author>
            <volume>10</volume>
            <first_page>380</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Hoffman S, Hatch MC. 
                    Stress social support and pregnancy outcome
a reassessment based on recent research 
                    Paediatr Perinat
Epidemiol  
                    1996; 
                    10
                    (4)
                    : 380-405.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR23">
            <journal_title>Br Med Bull</journal_title>
            <author> Wald NJ</author>
            <volume>52</volume>
            <first_page>3</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Wald NJ, Hackshaw AK. 
                    Cigarette smoking: an epidemiological
overview 
                    Br Med Bull  
                    1996; 
                    52
                    (1)
                    : 3-11.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR24">
            <journal_title>N Engl J Med</journal_title>
            <author> Goldenberg RL</author>
            <volume>342</volume>
            <first_page>1500</first_page>
            <cYear>2000</cYear>
            <unstructured_citation>
                     Goldenberg RL, Hauth JC, Andrews WW. 
                    Intrauterine infection and preterm delivery 
                    N Engl J Med  
                    2000; 
                    342
                    (20)
                    : 1500-7.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR25">
            <journal_title>Ann Periodontol</journal_title>
            <author> Gibbs RS</author>
            <volume>6</volume>
            <first_page>153</first_page>
            <cYear>2001</cYear>
            <unstructured_citation>
                     Gibbs RS. 
                    The relationship between infections and adverse pregnancy
outcomes: an overview 
                    Ann Periodontol  
                    2001; 
                    6
                    (1)
                    : 153-3.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR26">
            <journal_title>Am J Perinatol</journal_title>
            <author> Sorokin Y</author>
            <volume>27</volume>
            <first_page>631</first_page>
            <cYear>2010</cYear>
            <unstructured_citation>
                     Sorokin Y, Romero R, Mele L, et al. 
                    Maternal serum interleukin-6
C-reactive protein and matrix metalloproteinase-9 concentrations
as risk factors for preterm birth &lt;32 weeks and adverse neonatal
outcomes 
                    Am J Perinatol  
                    2010; 
                    27
                    (8)
                    : 631-40.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR27">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Yoon BH</author>
            <volume>182</volume>
            <first_page>675</first_page>
            <cYear>2000</cYear>
            <unstructured_citation>
                     Yoon BH, Romero R, Park JS, et al. 
                    Fetal exposure to an intraamniotic
inflammation and the development of cerebral palsy at the
age of three years 
                    Am J Obstet Gynecol  
                    2000; 
                    182
                    (3)
                    : 675-81.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR28">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Romero R</author>
            <volume>179</volume>
            <first_page>186</first_page>
            <cYear>1998</cYear>
            <unstructured_citation>
                     Romero R, Gomez R, Ghezzi F, et al. 
                    A fetal systemic inflammatory
response is followed by the spontaneous onset of preterm
parturition 
                    Am J Obstet Gynecol  
                    1998; 
                    179
                    (1)
                    : 186-93.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR29">
            <journal_title>Brain Dev</journal_title>
            <author> Kassal R</author>
            <volume>27</volume>
            <first_page>483</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Kassal R, Anwar M, Kashlan F, Smulian J, Hiatt M, Hegyi T. 
                    
Umbilical vein interleukin-6 levels in very low birth weight infants
developing intraventricular hemorrhage 
                    Brain Dev  
                    2005; 
                    27
                    (7)
                    : 483-7.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR30">
            <journal_title>Arch Dis Child Fetal Neonatal Ed</journal_title>
            <author> Heep A</author>
            <volume>88</volume>
            <first_page>F501</first_page>
            <cYear>2003</cYear>
            <unstructured_citation>
                     Heep A, Behrendt D, Nitsch P, Fimmers R, Bartmann P, Dembinski 
J. 
                    Increased serum levels of interleukin 6 are associated with
severe intraventricular haemorrhage in extremely premature
infants 
                    Arch Dis Child Fetal Neonatal Ed  
                    2003; 
                    88
                    (6)
                    : F501-4.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR31">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Ghezzi F</author>
            <volume>186</volume>
            <first_page>268</first_page>
            <cYear>2002</cYear>
            <unstructured_citation>
                     Ghezzi F, Franchi M, Raio L, et al. 
                    Elevated amniotic fluid Creactive
protein at the time of genetic amniocentesis is a marker for
preterm delivery 
                    Am J Obstet Gynecol  
                    2002; 
                    186
                    (2)
                    : 268-73.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR32">
            <journal_title>Arch Dis Child
Fetal Neonatal Ed</journal_title>
            <author> Joram N</author>
            <volume>91</volume>
            <first_page>F65</first_page>
            <cYear>2006</cYear>
            <unstructured_citation>
                     Joram N, Boscher C, Denizot S, et al. 
                    Umbilical cord blood procalcitonin
and C reactive protein concentrations as markers for early
diagnosis of very early onset neonatal infection 
                    Arch Dis Child
Fetal Neonatal Ed  
                    2006; 
                    91
                    (1)
                    : F65-6.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR33">
            <journal_title>Am J Obstet Gynecol
</journal_title>
            <author> Maymon E</author>
            <volume>183</volume>
            <first_page>887</first_page>
            <cYear>2000</cYear>
            <unstructured_citation>
                     Maymon E, Romero R, Pacora P, et al. 
                    Evidence of in vivo
differential bioavailability of the active forms of matrix
metalloproteinases 9 and 2 in parturition spontaneous rupture of
membranes and intra-amniotic infection 
                    Am J Obstet Gynecol
  
                    2000; 
                    183
                    (4)
                    : 887-94.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR34">
            <journal_title>Pediatr Res</journal_title>
            <author> Schulz CG</author>
            <volume>55</volume>
            <first_page>794</first_page>
            <cYear>2004</cYear>
            <unstructured_citation>
                     Schulz CG, Sawicki G, Lemke RP, Roeten BM, Schulz R, Cheung 
PY. 
                    MMP-2 and MMP-9 and their tissue inhibitors in the plasma of
preterm and term neonates 
                    Pediatr Res  
                    2004; 
                    55
                    (5)
                    : 794-801.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR35">
            <journal_title>Obstet Gynecol
</journal_title>
            <author> Winkler M</author>
            <volume>91</volume>
            <first_page>945</first_page>
            <cYear>1998</cYear>
            <unstructured_citation>
                     Winkler M, Fischer DC, Hlubek M, van de Leur E, Haubeck HD, 
Rath W. 
                    Interleukin-1beta and interleukin-8 concentrations in the
lower uterine segment during parturition at term 
                    Obstet Gynecol
  
                    1998; 
                    91
                    (6)
                    : 945-.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR36">
            <journal_title>Am J
Obstet Gynecol</journal_title>
            <author> Romero R</author>
            <volume>166</volume>
            <first_page>1576</first_page>
            <cYear>1992</cYear>
            <unstructured_citation>
                     Romero R, Mazor M, Sepulveda W, Avila C, Copeland D, 
Williams J. 
                    Tumor necrosis factor in preterm and term labor 
                    Am J
Obstet Gynecol  
                    1992; 
                    166
                    (5)
                    : 1576-87.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR37">
            <journal_title>J
Clin Endocrinol Metab</journal_title>
            <author> Sehringer B</author>
            <volume>85</volume>
            <first_page>4859</first_page>
            <cYear>2000</cYear>
            <unstructured_citation>
                     Sehringer B, Schafer WR, Wetzka B, et al. 
                    Formation of proinflammatory
cytokines in human term myometrium is stimulated by
lipopolysaccharide but not by corticotropin-releasing hormone 
                    J
Clin Endocrinol Metab  
                    2000; 
                    85
                    (12)
                    : 4859-65.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR38">
            <journal_title>J Can Dent Assoc</journal_title>
            <author> McGaw T</author>
            <volume>68</volume>
            <first_page>165</first_page>
            <cYear>2002</cYear>
            <unstructured_citation>
                     McGaw T. 
                    Periodontal disease and preterm delivery of low-birthweight
infants 
                    J Can Dent Assoc  
                    2002; 
                    68
                    (3)
                    : 165-9.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR39">
            <journal_title>The theory of focal sepsis and dentistry in early
twentieth century Britain. Soc Sci Med</journal_title>
            <author> Dussault G</author>
            <volume>16</volume>
            <first_page>1405</first_page>
            <cYear>1982</cYear>
            <unstructured_citation>
                     Dussault G, Sheiham A. 
                    Medical theories and professional
development 
                    The theory of focal sepsis and dentistry in early
twentieth century Britain Soc Sci Med  
                    1982; 
                    16
                    (15)
                    : 1405-2.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR40">
            <journal_title>Lancet</journal_title>
            <author> Pihlstrom BL</author>
            <volume>366</volume>
            <first_page>1809</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Pihlstrom BL, Michalowicz BS, Johnson NW. 
                    Periodontal
diseases 
                    Lancet  
                    2005; 
                    366
                    (9499)
                    : 1809-20.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR41">
            <journal_title>J
Periodontol</journal_title>
            <author> Contreras A</author>
            <volume>77</volume>
            <first_page>182</first_page>
            <cYear>2006</cYear>
            <unstructured_citation>
                     Contreras A, Herrera J, Soto J, Arce R, Jaramillo A, Botero J. 
                    
Periodontitis is associated with preeclampsia in pregnant women 
                    J
Periodontol  
                    2006; 
                    77
                    (2)
                    : 182-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR42">
            <journal_title>J Periodontol
</journal_title>
            <author> Offenbacher S</author>
            <volume>67</volume>
            <first_page>1103</first_page>
            <cYear>1996</cYear>
            <unstructured_citation>
                     Offenbacher S, Katz V, Fertik G, et al. 
                    Periodontal infection as a
possible risk factor for preterm low birth weight 
                    J Periodontol
  
                    1996; 
                    67
                    ( 10 Suppl)
                    : 1103-3.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR43">
            <journal_title>Ann Periodontol</journal_title>
            <author> Dasanayake AP</author>
            <volume>3</volume>
            <first_page>206</first_page>
            <cYear>1998</cYear>
            <unstructured_citation>
                     Dasanayake AP. 
                    Poor periodontal health of the pregnant woman as
a risk factor for low birth weight 
                    Ann Periodontol  
                    1998; 
                    3
                    (1)
                    : 206-12.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR44">
            <journal_title>Am J Obstet
Gynecol</journal_title>
            <author> Mobeen N</author>
            <volume>198</volume>
            <first_page>514</first_page>
            <cYear>2008</cYear>
            <unstructured_citation>
                     Mobeen N, Jehan I, Banday N, et al. 
                    Periodontal disease and
adverse birth outcomes: a study from Pakistan 
                    Am J Obstet
Gynecol  
                    2008; 
                    198
                    (5)
                    : 514-e1-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR45">
            <journal_title>Community Dent Oral Epidemiol
</journal_title>
            <author> Saddki N</author>
            <volume>36</volume>
            <first_page>296</first_page>
            <cYear>2008</cYear>
            <unstructured_citation>
                     Saddki N, Bachok N, Hussain NH, Zainudin SL, Sosroseno W. 
                    The
association between maternal periodontitis and low birth weight
infants among Malay women 
                    Community Dent Oral Epidemiol
  
                    2008; 
                    36
                    (4)
                    : 296-304.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR46">
            <journal_title>Community Dent Oral Epidemiol</journal_title>
            <author> Pitiphat W</author>
            <volume>36</volume>
            <first_page>3</first_page>
            <cYear>2008</cYear>
            <unstructured_citation>
                     Pitiphat W, Joshipura KJ, Gillman MW, Williams PL, Douglass 
CW, Rich-Edwards JW. 
                    Maternal periodontitis and adverse pregnancy outcomes 
                    Community Dent Oral Epidemiol  
                    2008; 
                    36
                    (1)
                    : 3-11.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR47">
            <journal_title>J Clin Periodontol</journal_title>
            <author> Moliterno LF</author>
            <volume>32</volume>
            <first_page>886</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Moliterno LF, Monteiro B, Figueredo CM, Fischer RG. 
                    Association
between periodontitis and low birth weight: a case-control
study 
                    J Clin Periodontol  
                    2005; 
                    32
                    (8)
                    : 886-90.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR48">
            <journal_title>
Arch Gynecol Obstet</journal_title>
            <author> Khader Y</author>
            <volume>279</volume>
            <first_page>165</first_page>
            <cYear>2009</cYear>
            <unstructured_citation>
                     Khader Y, Al-shishani L, Obeidat B, et al. 
                    Maternal periodontal
status and preterm low birth weight delivery: a case-control study 
                    
Arch Gynecol Obstet  
                    2009; 
                    279
                    (2)
                    : 165-9.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR49">
            <journal_title>J Periodontol
</journal_title>
            <author> Guimaraes AN</author>
            <volume>81</volume>
            <first_page>350</first_page>
            <cYear>2010</cYear>
            <unstructured_citation>
                     Guimaraes AN, Silva-Mato A, Miranda Cota LO, Siqueira FM, 
Costa FO. 
                    Maternal periodontal disease and preterm or extreme
preterm birth: an ordinal logistic regression analysis 
                    J Periodontol
  
                    2010; 
                    81
                    (3)
                    : 350-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR50">
            <journal_title>J Periodontol</journal_title>
            <author> Ryu JI</author>
            <volume>81</volume>
            <first_page>855</first_page>
            <cYear>2010</cYear>
            <unstructured_citation>
                     Ryu JI, Oh K, Yang H, et al. 
                    Health behaviors, periodontal
conditions and periodontal pathogens in spontaneous preterm
birth: a case-control study in Korea 
                    J Periodontol  
                    2010; 
                    81
                    (6)
                    : 855-63.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR51">
            <journal_title>J
Periodontal Res</journal_title>
            <author> Baskaradoss JK</author>
            <volume>46</volume>
            <first_page>542</first_page>
            <cYear>2011</cYear>
            <unstructured_citation>
                     Baskaradoss JK, Geevarghese A, Kutty VR. 
                    Maternal periodontal
status and preterm delivery: a hospital based case-control study 
                    J
Periodontal Res  
                    2011; 
                    46
                    (5)
                    : 542-9.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR52">
            <journal_title>J Periodontol
</journal_title>
            <author> Jeffcoat MK</author>
            <volume>74</volume>
            <first_page>1214</first_page>
            <cYear>2003</cYear>
            <unstructured_citation>
                     Jeffcoat MK, Hauth JC, Geurs NC, et al. 
                    Periodontal disease and
preterm birth: results of a pilot intervention study 
                    J Periodontol
  
                    2003; 
                    74
                    (8)
                    : 1214-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR53">
            <journal_title>J Periodontol</journal_title>
            <author> Lopez NJ</author>
            <volume>73</volume>
            <first_page>911</first_page>
            <cYear>2002</cYear>
            <unstructured_citation>
                     Lopez NJ, Smith PC, Gutierrez J. 
                    Periodontal therapy may reduce
the risk of preterm low birth weight in women with periodontal
disease: a randomized controlled trial 
                    J Periodontol  
                    2002; 
                    73
                    (8)
                    : 911-24.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR54">
            <journal_title>J
Periodontol</journal_title>
            <author> Tarannum F</author>
            <volume>78</volume>
            <first_page>2095</first_page>
            <cYear>2007</cYear>
            <unstructured_citation>
                     Tarannum F, Faizuddin M. 
                    Effect of periodontal therapy on
pregnancy outcome in women affected by periodontitis 
                    J
Periodontol  
                    2007; 
                    78
                    (11)
                    : 2095-103.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR55">
            <journal_title>N Engl J Med
</journal_title>
            <author> Michalowicz BS</author>
            <volume>355</volume>
            <first_page>1885</first_page>
            <cYear>2006</cYear>
            <unstructured_citation>
                     Michalowicz BS, Hodges JS, DiAngelis AJ, et al. 
                    Treatment of
periodontal disease and the risk of preterm birth 
                    N Engl J Med
  
                    2006; 
                    355
                    (18)
                    : 1885-94.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR56">
            <journal_title>Clin Oral Investig
 </journal_title>
            <author> Weidlich P</author>
            <cYear>2012</cYear>
            <unstructured_citation>
                     Weidlich P, Moreira CH, Fiorini T, et al. 
                    Effect of nonsurgical
periodontal therapy and strict plaque control on preterm/low birth
weight: a randomized controlled clinical trial 
                    Clin Oral Investig
  
2012.

                 [Epub ahead of print]</unstructured_citation>
          </citation>
          <citation key="refR57">
            <journal_title>
Ann Periodontol</journal_title>
            <author> Offenbacher S</author>
            <volume>3</volume>
            <first_page>233</first_page>
            <cYear>1998</cYear>
            <unstructured_citation>
                     Offenbacher S, Jared HL, OReilly PG, et al. 
                    Potential pathogenic
mechanisms of periodontitis associated pregnancy complications 
                    
Ann Periodontol  
                    1998; 
                    3
                    (1)
                    : 233-50.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR58">
            <journal_title>Curr Opin Periodontol</journal_title>
            <author> Loesche WJ</author>
            <volume>4</volume>
            <first_page>21</first_page>
            <cYear>1997</cYear>
            <unstructured_citation>
                     Loesche WJ. 
                    Association of the oral flora with important medical
diseases 
                    Curr Opin Periodontol  
                    1997; 
                    4
                    : 21-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR59">
            <journal_title>Ann
Periodontol</journal_title>
            <author> Madianos PN</author>
            <volume>6</volume>
            <first_page>175</first_page>
            <cYear>2001</cYear>
            <unstructured_citation>
                     Madianos PN, Lieff S, Murtha AP, et al. 
                    Maternal periodontitis and
prematurity.Part II: Maternal infection and fetal exposure 
                    Ann
Periodontol  
                    2001; 
                    6
                    (1)
                    : 175-82.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR60">
            <journal_title>Infect
Immun</journal_title>
            <author> Han YW</author>
            <volume>72</volume>
            <first_page>2272</first_page>
            <cYear>2004</cYear>
            <unstructured_citation>
                     Han YW, Redline RW, Li M, Yin L, Hill GB, McCormick TS. 
                    
Fusobacterium nucleatum induces premature and term stillbirths in
pregnant mice: implication of oral bacteria in preterm birth 
                    Infect
Immun  
                    2004; 
                    72
                    (4)
                    : 2272-9.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR61">
            <journal_title>Infect Immun</journal_title>
            <author> Lin D</author>
            <volume>71</volume>
            <first_page>5163</first_page>
            <cYear>2003</cYear>
            <unstructured_citation>
                     Lin D, Smith MA, Elter J, et al. 
                    Porphyromonas gingivalis
infection in pregnant mice is associated with placental
dissemination an increase in the placental Th1/Th2 cytokine ratio
and fetal growth restriction 
                    Infect Immun  
                    2003; 
                    71
                    (9)
                    : 5163-8.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR62">
            <journal_title>Reprod Sci</journal_title>
            <author> Kemp MW</author>
            <volume>17</volume>
            <first_page>619</first_page>
            <cYear>2010</cYear>
            <unstructured_citation>
                     Kemp MW, Saito M, Newnham JP, Nitsos I, Okamura K, Kallapur 
SG. 
                    Preterm birth infection and inflammation advances from the
study of animal models 
                    Reprod Sci  
                    2010; 
                    17
                    (7)
                    : 619-28.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR63">
            <journal_title>J Clin Periodontol</journal_title>
            <author> Chambrone L</author>
            <volume>38</volume>
            <first_page>795</first_page>
            <cYear>2011</cYear>
            <unstructured_citation>
                     Chambrone L, Guglielmetti MR, Pannuti CM, Chambrone LA. 
                    
Evidence grade associating periodontitis to preterm birth and/or
low birth weight: I.a systematic review of prospective cohort
studies 
                    J Clin Periodontol  
                    2011; 
                    38
                    (9)
                    : 795-808.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR64">
            <journal_title> J Clin Periodontol
</journal_title>
            <author> Chambrone L</author>
            <volume>38</volume>
            <first_page>902</first_page>
            <cYear>2011</cYear>
            <unstructured_citation>
                     Chambrone L, Pannuti CM, Guglielmetti MR, Chambrone LA. 
                    
Evidence grade associating periodontitis with preterm birth and/or
low birth weight: II.a systematic review of randomized trials
evaluating the effects of periodontal treatment 
                     J Clin Periodontol
  
                    2011; 
                    38
                    (10)
                    : 902-14.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR65">
            <journal_title>Am J
Obstet Gynecol</journal_title>
            <author> Conde-Agudelo A</author>
            <volume>198</volume>
            <first_page>7</first_page>
            <cYear>2008</cYear>
            <unstructured_citation>
                     Conde-Agudelo A, Villar J, Lindheimer M. 
                    Maternal infection and
risk of preeclampsia: systematic review and metaanalysis 
                    Am J
Obstet Gynecol  
                    2008; 
                    198
                    (1)
                    : 7-22.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR66">
            <journal_title>Minerva
Stomatol</journal_title>
            <author> Pimentel Lopes De Oliveira GJ</author>
            <volume>59</volume>
            <first_page>543</first_page>
            <cYear>2010</cYear>
            <unstructured_citation>
                     Pimentel Lopes De Oliveira GJ, Amaral FL, Chaves De Souza JA, 
Ribeiro CM, Cirelli JA. 
                    Effect of periodontal treatment on the
incidence of preterm delivery: a systematic review 
                    Minerva
Stomatol  
                    2010; 
                    59
                    (10)
                    : 543-0.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR67">
            <journal_title>J Periodontol</journal_title>
            <author> Khader YS</author>
            <volume>76</volume>
            <first_page>161</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Khader YS, Ta'ani Q. 
                    Periodontal diseases and the risk of preterm
birth and low birth weight: a meta-analysis 
                    J Periodontol  
                    2005; 
                    76
                    (2)
                    : 161-5.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR68">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Vergnes JN</author>
            <volume>196</volume>
            <first_page>135</first_page>
            <cYear>2007</cYear>
            <unstructured_citation>
                     Vergnes JN, Sixou M. 
                    Preterm low birth weight and maternal
periodontal status: a meta-analysis 
                    Am J Obstet Gynecol  
                    2007; 
                    196
                    (2)
                    : 135-e1-7.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR69">
            <journal_title>Obstet
Gynecol</journal_title>
            <author> Fogacci MF</author>
            <volume>117</volume>
            <first_page>153</first_page>
            <cYear>2011</cYear>
            <unstructured_citation>
                     Fogacci MF, Vettore MV, Leao AT. 
                    The effect of periodontal
therapy on preterm low birth weight: a meta-analysis 
                    Obstet
Gynecol  
                    2011; 
                    117
                    (1)
                    : 153-65.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR70">
            <journal_title>J Periodontol</journal_title>
            <author> Kim AJ</author>
            <cYear>2012</cYear>
            <unstructured_citation>
                     Kim AJ, Lo AJ, Pullin DA, Thornton-Johnson DS, Karimbux NY. 
                    
Scaling and root planing treatment for periodontitis to reduce
preterm birth and low birth weight: a systematic review and metaanalysis
of randomized controlled trials 
                    J Periodontol 
                    2012.
                </unstructured_citation>
          </citation>
          <citation key="refR71">
            <journal_title>J Periodontal Res</journal_title>
            <author> Page RC</author>
            <volume>26</volume>
            <first_page>230</first_page>
            <cYear>1991</cYear>
            <unstructured_citation>
                     Page RC. 
                    The role of inflammatory mediators in the pathogenesis
of periodontal disease 
                    J Periodontal Res  
                    1991; 
                    26
                    (3 Pt 2)
                    : 230-42.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR72">
            <journal_title>Dent Clin North Am</journal_title>
            <author> Dasanayake AP</author>
            <volume>47</volume>
            <first_page>115-25</first_page>
            <cYear>2003</cYear>
            <unstructured_citation>
                     Dasanayake AP, Russell S, Boyd D, Madianos PN, Forster T, Hill 
E. 
                    Preterm low birth weight and periodontal disease among African
Americans 
                    Dent Clin North Am  
                    2003; 
                    47
                    (1)
                    : 115-25-x-xi.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR73">
            <journal_title>J Clin Periodontol  </journal_title>
            <author> Madianos PN</author>
            <volume>29 </volume>
            <first_page>22</first_page>
            <cYear>2002</cYear>
            <unstructured_citation>
                     Madianos PN, Bobetsis GA, Kinane DF. 
                    Is periodontitis associated
with an increased risk of coronary heart disease and preterm and/or 
low birth weight births 
                    J Clin Periodontol    
                    2002; 
                    29 
                    ( Suppl 3)
                    : 22-36.
                    
                    
                 discussion 7-8</unstructured_citation>
          </citation>
          <citation key="refR74">
            <journal_title>J Clin Periodontol
</journal_title>
            <author> Dortbudak O</author>
            <volume>32</volume>
            <first_page>45</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Dortbudak O, Eberhardt R, Ulm M, Persson GR. 
                    Periodontitis, a
marker of risk in pregnancy for preterm birth 
                    J Clin Periodontol
  
                    2005; 
                    32
                    (1)
                    : 45-52.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR75">
            <journal_title>Mil Med</journal_title>
            <author> Fowler EB</author>
            <volume>166</volume>
            <first_page>85</first_page>
            <cYear>2001</cYear>
            <unstructured_citation>
                     Fowler EB, Breault LG, Cuenin MF. 
                    Periodontal disease and its
association with systemic disease 
                    Mil Med  
                    2001; 
                    166
                    (1)
                    : 85-9.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR76">
            <journal_title>J
Hypertens</journal_title>
            <author> Herrera JA</author>
            <volume>25</volume>
            <first_page>1459</first_page>
            <cYear>2007</cYear>
            <unstructured_citation>
                     Herrera JA, Parra B, Herrera E, et al. 
                    Periodontal disease severity
is related to high levels of C-reactive protein in pre-eclampsia 
                    J
Hypertens  
                    2007; 
                    25
                    (7)
                    : 1459-64.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR77">
            <journal_title>
Am J Obstet Gynecol</journal_title>
            <author> Boggess KA</author>
            <volume>193</volume>
            <first_page>311</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Boggess KA. 
                    Pathogenicity of periodontal pathogens during pregnancy 
                    
Am J Obstet Gynecol  
                    2005; 
                    193
                    (2)
                    : 311-2.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR78">
            <journal_title>J Periodontol</journal_title>
            <author> Dasanayake AP</author>
            <volume>72</volume>
            <first_page>1491</first_page>
            <cYear>2001</cYear>
            <unstructured_citation>
                     Dasanayake AP, Boyd D, Madianos PN, Offenbacher S, Hills E. 
                    
The association between Porphyromonas gingivalis-specific
maternal serum IgG and low birth weight 
                    J Periodontol  
                    2001; 
                    72
                    (11)
                    : 1491-7.
                    
                </unstructured_citation>
          </citation>
          <citation key="refR79">
            <journal_title>Am J Obstet Gynecol</journal_title>
            <author> Jarjoura K</author>
            <volume>192</volume>
            <first_page>513</first_page>
            <cYear>2005</cYear>
            <unstructured_citation>
                     Jarjoura K, Devine PC, Perez-Delboy A, Herrera-Abreu M, 
DAlton M, Papapanou PN. 
                    Markers of periodontal infection and
preterm birth 
                    Am J Obstet Gynecol  
                    2005; 
                    192
                    (2)
                    : 513-9.
                    
                </unstructured_citation>
          </citation>
        </citation_list>
      </journal_article>
    </journal>
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