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Research Paper | Dental Science | Macedonia | Volume 5 Issue 9, September 2016 | Popularity: 6.9 / 10
Biomechanical Analysis of Tooth Carriers, Gingiva and Alveolar Bone in Case of Application of Subtotal Telescopic Prosthesis Based on FEM
Ana Spirovska, Jadranka Bundevska
Abstract: The problem of connecting telescopic crowns with mobile prosthetic structure must be in accordance with the requirements, the connection to be consistent physically and mechanically and in biological sense to satisfy prophylactic requirements. The basic target of this thesis is to examine tension-deformity status of the tooth carriers of cone crowns, the gingival and alveolar bone, under load with equal strength on both sides. For realization of this aim, two internal cone crowns are modelled with an angle of 6 degrees and external cone crowns with standard approximate extensions. A metal skeleton is created from subtotal prosthesis which is connected with approximate extensions from external crowns by soldering. Prosthetic denture is executed on KAVO studio model on lower jaw with two canines remained. Then scanning of such lab-made model by 3D scanner is carried out and 3D mathematical model is developed. Stress analysis was carried out according to the method of final elements (FEM). Maximal stress values of tooth carriers of cone crowns are obtained in the frames of endurance of dental tissue and the maximal streses of gingival and alveolar bone and the same are in the limits of optimal values. These data indicate that making of this prosthetic structure is justified.
Keywords: suptotal telescopic skeleton prosthesis, cone crowns, FEM
Edition: Volume 5 Issue 9, September 2016
Pages: 1354 - 1358
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