Document Type : Original Articles

Abstract

Introduction: In complete denture fabrication, it is very important to locate the best place for tooth arrangement. Studies have made attempts in this respect, but limited studies have evaluated the posterior region to this end. The aim of the present study was to determine the relationship between inter-condylar width (ICW) and lower and upper arch widths in the canine and molar areas. Materials and Methods: In this descriptive, cross-sectional study, 61 dental students were selected from Isfahan Faculty of Dentistry. A facebow was used to measure inter-condylar distance. A digital caliper was used to measure the distances between canine cusp tips and first molar mesiobuccal cusp tips. Data was analyzed with t-test and Pearson’s correlation coefficient (α = 0.05). Results: There were statistically significant differences in inter-condylar distances between males and females. Based on the analyses carried out specific equations were extracted to predict each of the above-mentioned parameters with the use of inter-condylar distance. Conclusion: In this study, ICW was used as an extraoral anatomical landmark which does not change in time and with ridge resorption. The proposed technique in this study can be useful for dentists with less clinical experience.   Key words: Canine, Condyle, Mandible, Molar.