الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
This research was carried out on twenty edentulous patients, divided into two groups, to study the effect of posterior teeth form (anatomic and non anatomic) on the alveolar ridge supporting lower complete denture. For every patient, complete upper and lower dentures were constructed using anatomic posterior teeth for one group and non anatomic for the other. Computed tomography was performed three times along one year follow-up period. The results revealed that: -Vertical and horizontal alveolar bone resorption was increased during the period of study for both groups. -Alveolar bone density was increased in both groups, but it is more evident with the group with anatomic teeth. -Comparing the two groups, no significant difference was found either in the reduction of the alveolar ridge nor in the bone density. -No correlation was found between alveolar ridge reduction and density In conclution: 1-In complete denture, teeth form may be a prosthetic factor for mandibular alveolar bone resorption. 2-The non cusped posterior teeth form is not superior to cusped one for minimizing mandibular alveolar bone resorption. 3-Cusped posterior teeth occlusion is a preferred prosthetic line of treatment for improvement of mandibular alveolar bone density. 4-Mandibular alveolar bone resorption is not dependent on its density.