Abstract:???Background and Aim: Estheticsis one of the prosthetic treatment goals. Correct selection of anterior teeth,regarding size and appearance, results in a successful treatment. Using theextra oral indicators is a common method to determine the size of the tooth. Inthis study, the correlation between the facial widths (in bizygomatic andintercondylar areas) and the mesiodistal width of maxillary central incisorswas analyzed.?Materialsand Methods:?A cross-sectional study was conducted on100 qualified students, 50 females and 50 males. Two facial widths comprisingIntercondylar width -distance between two approximately Beyron hinge axis- andbizygomatic width -two most convex points of zygomatic arch- were marked andmeasured by a facebow and a digital caliper. Mesiodistal maxillary centralincisors’ widths were measured by a digital caliper. The collected data wereanalyzed via Pearson correlation coefficient.?Results:The mesiodistal width of right central incisor was 8.47±0.56. The mesiodistalwidth of left central incisor was 8.54±0.64.The bizygomatic width was126.15±6.74. The intercondylar width was 131.43±5.41. There was no correlationbetween bizygomatic width and central incisors (P>0.05) and a weakcorrelation between intercondylar width and central incisors in Iraniancommunity.?Conclusion: Facial width is not recommended as asuitable landmark for estimating the mesiodistal width of maxillary centralincisors.
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