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Quintessence International



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Quintessence Int 48 (2017), No. 3     22. Feb. 2017
Quintessence Int 48 (2017), No. 3  (22.02.2017)

Page 209-216, doi:10.3290/j.qi.a37642, PubMed:28168237

Evaluation of the width of the alveolar bone in subjects with different gingival biotypes: A prospective cohort study using cone beam computed tomography
Frumkin, Nathalie / Via, Shlomo / Klinger, Avigdor
Objective: To examine the correlation between the gingival biotype and the morphology of the alveolar bone in human subjects, assessing the clinical and the practical values of these findings.
Method and Materials: Thirty-five subjects were enrolled. The labial plate thickness was measured by cone beam computed tomography (CBCT). The correlation between CBCT and probe transparency measurements was analyzed with regard to tooth type (canine or central incisor). Additional data analysis included possible correlation to gender and smoking status.
Results: Of the patients, 57% (20/35) were female; 23% (8/35) were smokers; 78% (25/32) of maxillary teeth had thin biotype compared to 50% (19/38) of mandibular teeth; 63% (10/16) and 32% (6/19) of the patients had thin biotype in maxillary and mandibular teeth respectively. More than 30% of the subjects demonstrated different biotypes in the same jaw at different sites. The probe transparency through the soft tissue at the maxillary canine was positively correlated with the width of the facial bone plate at the alveolar crest (P = .026).
Conclusion: Biotype can vary in the same subject at different sites. Only the maxillary canine's biotype correlated with the facial plate width.

Keywords: alveolar bone loss, anatomy, cross-sectional, gingival recession, tissue biotype