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Influence of Im-plant Length and Diameter on Stress Distribution


Authors: L. Himmlová;  Konvičková S.kácovský A.dostálová T.
Authors‘ workplace: Výzkumný ústav stomatologický – VFN Praha, ČVUT, Fakulta strojní, Ústav Mechaniky 1
Published in: Česká stomatologie / Praktické zubní lékařství, ročník , 2000, 6, s. 155-163
Category:

Overview

Summary:
The aim of the study was to determine the influence of length and diameter onstress distribution in bone around loaded dental intraosseal implants. The computation wasmade by the FEA method using the 3D models of implant size modifications. For the study ofthe length factor, the diameter of 3.6 mm and lengths of 8, 10, 12, 14, 16, 17, and 18 mm werecalculated. The factor of diameter was modeled by 12 mm long implant with diameters of 2.9mm, 3.6 mm, 4.2 mm, 5.0 mm, 5.5 mm, 6.0 mm and 6.5 mm. Implants were vertically insertedin the bone. All models were loaded by forces of 17.1 N, 114.6 N and 23.4 N, in vestibulo-oraldirection, axial direction and disto-mesial direction, respectively. Values calculated for all sizevariety were adjusted in graphs. Implant size – length 12 mm, diameter 3,6 mm – was takenas a reference =100%. From graphs results, that the implant diameter has positive effect forstress distribution. The implant length has not so effective influence.

Key words:
dental implants – stress distribution – finite element analysis

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Labels
Maxillofacial surgery Orthodontics Dental medicine
Topics Journals
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