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The Scientific World Journal
Volume 2014 (2014), Article ID 254932, 5 pages
http://dx.doi.org/10.1155/2014/254932
Clinical Study

Effects of Edentulism on Mandibular Morphology: Evaluation of Panoramic Radiographs

1Department of Orthodontics, Faculty of Dentistry, Osmangazi University, 26000 Eskişehir, Turkey
2Department of Orthodontics, Faculty of Dentistry, Gaziantep University, 27310 Gaziantep, Turkey
3Department of Prosthodontics, Faculty of Dentistry, Gaziantep University, 27310 Gaziantep, Turkey

Received 18 June 2014; Revised 29 July 2014; Accepted 3 August 2014; Published 18 August 2014

Academic Editor: Siddik Malkoç

Copyright © 2014 Rıdvan Okşayan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. The objective of this study was to evaluate morphological changes of the mandible in edentulous and dentate subjects using panoramic radiographs. Materials and Methods. Panoramic radiographs were divided into the following three groups: Group I (completely edentulous group), Group II (old dentate group) and Group III (young dentate group). The research parameters of gonial angle, condylar height, ramus height, ramus notch depth, and antegonial notch depth were measured on panoramic radiographs. The Kruskal-Wallis statistical test was used to determine significant differences in mandibular morphological parameters among the three groups. The Mann-Whitney test was used to compare the subgroups. Results. Significant differences were found only in ramus height between three groups. According to the Mann-Whitney U test, a significant difference was exhibited among Groups I and II in the ramus height parameter. No significant differences were found in the gonial angle, condylar height, ramus notch depth, or antegonial notch depth when comparing the young dentate, old dentate, and completely edentulous subjects. Conclusions. Significant differences were found only in ramus height between the groups. Ramus height may be an indicator that changed by years and tooth loss. It must be considered that ramus height can be decreased in edentulism.