TODENTJ-25-03-2019_TODENTJ-2-114 1553505014 Bentham Open doi@benthamopen.net Bentham Open The Open Dentistry Journal TODENTJ 1874-2106 11 28 2008 2 1 Yu-Hsiang Chou Chi-Cheng Tsai Jen-Chyan Wang Ya-Ping Ho Kun-Yen Ho Chuen-Chyi Tseng Objectives: The aim of the investigation was to examine the forms of the crowns in the maxillary anterior tooth segment and corresponding gingival characteristics among healthy Taiwanese subjects. Materials and Methods: The crown width at the apical third (CW), length (CL), gingival angle (GA) and the interdental papilla height were assessed from the diagnostic stone model using a calibrated periodontal caliper. A CW/CL-ratio was calculated for each tooth and averaged for each tooth region. Gingival thickness (GT) and width of keratinized gingiva (WG) were measured clinically. Results: The cluster analysis revealed 3 classifications of crown forms: narrow (N), compound (C) and square (S) types. There was a significant difference among the 3 classifications with respect to CW/CL-ratio, GT, and WG (p < 0.0001). Conclusions: The results demonstrated varied crown forms and corresponding gingival characteristics in Caucasian and Taiwanese. The new classifications hinted that there was a polymorphism in different races and could be a valuable esthetic guideline and reference for anterior tooth rehabilitation, including various periodontal and restorative treatments and anterior implant placement procedures in Taiwanese. 11 28 2008 114 119 TODENTJ-2-114 1 10.2174/crossmark_policy opendentistryjournal.com benthamopen.com true Peer Reviewed Single blind Checked with iThenticate 2008-1-4 2008-3-25 2008-9-17 2008-11-28 http://creativecommons.org/licenses/by-nc/3.0/ 10.2174/1874210600802010114 1553505014 https://opendentistryjournal.com/VOLUME/2/PAGE/114/ https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.pdf https://opendentistryjournal.com/contents/volumes/V2/TODENTJ-2-114/TODENTJ-2-114.xml Alpha Omegan Weisgold AS 70 77 1977 Weisgold AS. 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