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        <full_title>The Open Dentistry Journal</full_title>
        <abbrev_title>TODENTJ</abbrev_title>
        <issn media_type="print">1874-2106</issn>
      </journal_metadata>
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        <publication_date media_type="print">
          <month>12</month>
          <day>11</day>
          <year>2015</year>
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        <journal_volume>
          <volume>9</volume>
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        <issue>1</issue>
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        <titles>
          <title>Intracanal Antibiotic Medication for Sustained Root Surface Disinfection–
A Laboratory Evaluation</title>
        </titles>
        <contributors>
          <person_name contributor_role="author" sequence="first">
            <given_name>Markus Tobias</given_name>
            <surname>Winfried Zaruba</surname>
          </person_name>
          <person_name contributor_role="author" sequence="additional">
            <given_name>Tilla</given_name>
            <surname>Filli</surname>
          </person_name>
          <person_name contributor_role="author" sequence="additional">
            <given_name>Dan-Krister</given_name>
            <surname>Rechenberg</surname>
          </person_name>
          <person_name contributor_role="author" sequence="additional">
            <given_name>Thomas</given_name>
            <surname>Thurnheer</surname>
          </person_name>
          <person_name contributor_role="author" sequence="additional">
            <given_name>Thomas</given_name>
            <surname>Attin</surname>
          </person_name>
          <person_name contributor_role="author" sequence="additional">
            <given_name>Patrick</given_name>
            <surname>Roger Schmidlin</surname>
          </person_name>
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        <jats:abstract>
              <jats:p><jats:italic><jats:underline>Purpose</jats:underline></jats:italic>: To measure<jats:italic> </jats:italic>the release of an antibiotic 
mixture of ciprofloxacin, cerfuroxim and metronidazole 
(TreVitaMix, TVM) through human dentine and to assess the growth inhibition of
<jats:italic>Fusobacterium nucleatum</jats:italic>. 
<jats:italic><jats:underline>Material and Methods</jats:underline></jats:italic>: Twenty-four extracted human incisors 
were scaled and endodontically treated. Root canals were either filled with 
antibiotic tri-mixture (TVM) or with the carrier material alone (propylene 
glycol, PG) and were coronally and apically sealed with a flowable composite. 
Transradicular medicament release was spectrophotometrically measured at 277 nm 
in simulated body fluid for up to 21 days. In a second part, an agar diffusion 
assay (<jats:italic>F. nucleatum</jats:italic>) with representative TVM concentrations as determined 
in the first part was performed to study the growth inhibition. Samples were 
anaerobical incubated for 48 h and inhibition zones were measured. <jats:italic><jats:underline>Results</jats:underline></jats:italic>:<jats:bold>
</jats:bold>TVM was spectrophotometrically detectable in the immersion solution and 
released in decreasing concentrations up to 21 days (222.5 ± 65.2 mg/ml at day 1 
and 35.1 ± 15.6 mg/ml at day 21). In addition, inhibition zones were shown in 
the agar diffusion assay at representative TVM concentrations. The carrier 
material showed no antibacterial effect. <jats:italic><jats:underline>Conlusion</jats:underline></jats:italic>: TVM 
showed the potential to penetrate through dentine and to inhibit bacterial 
growth. Therefore, it might have the potential to disinfect the outer root 
surface in perio-endo lesions, but further research is needed to confirm these 
observations.</jats:p>
            </jats:abstract>
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