Zhang Ailing, Liu Zhan, Mu Yandong, Qian Yingli, Fan Yubo
Laboratory of Biomechanical Engineering, Sichuan University, Chengdu 610065, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2007 Aug;24(4):717-20.
A 3D finite element model of bilateral distal-extension edentulous dentition, which includes mandible, incisors, canines and premolars, was established in the first place. Based on it, another model with extra-coronal attachments and dentures was also developed. Moreover, contact elements were applied to the regions between the denture and alveolar bone. The von Mises stress distributions of the abutments and their periodontal tissues, edentulous alveolar bone in the two models were compared. The results indicate that the stresses in the abutments and the alveolar sockets obviously increase at the buccal and lingual sides after reparation, and that the stresses on the edentulous alveolar bone also increase.
