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Dentition, Bone Loss And The Aging Of The Mandible
Cemile Nurdan Ozturk, Can Ozturk, Mehmet Bozkurt, Halil Safak Uygur, Frank Papay, James E Zins
Cleveland Clinic
2013-02-25
Presenter: Can Ozturk
Affidavit:
the above work is fellow`s original work
Director Name: James E Zins
Author Category: Fellow Plastic Surgery
Presentation Category: Basic Science Research
Abstract Category: Craniomaxillofacial
Ninety caucasian mandibles were used for analysis of the following landmarks: gonion-gonion, infradentale-gnathion, mental foramen-mandibular crest, mental foramen-inferior mandibular border, gnathion-gonion, condyle-gonion and gonial angle. The measurements were compared according to age and sex groups, and their relationship to dentition was identified. The number of teeth decreased significantly with increasing age in males (p=0.002) and females (p<0.001). There were no other statistically significant differences between age groups for the rest of the parameters. The infradentale-gnathion distance (p=0.005) and the mental foramen-mandibular crest distance (p<0.001) was found to increase with total number of teeth. Other parameters did not show significant relation to dentition. All parameters were found to be significantly larger in the male subgroups with the exception of gnathion-gonion distance and gonial angle. The mean number of mandibular teeth was 11.07 in males and 8.09 in females (p=0.001). Bilateral mandibular measurements were found to be symmetric except for the gonial angle which was found to be more obtuse on the right side in males (p=0.007) and females (p=0.018). In conclusion, dentition was shown to be the main determinant of the morphology of the mandible. The skeletal characteristics are variable among individuals and a longitudinal study is required to better delineate age related changes of the mandible.
