Stress Distribution Analysis of Threaded Implants for Digital Dentistry

Seokho Ahn, Jaesung Kim (), Seok Chan Jeong, Myungil Kim, Cheolyoung Kim and Dongki Park
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Seokho Ahn: Department of Digital Manufacturing, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea
Jaesung Kim: Department of Industry-Academic Convergence, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea
Seok Chan Jeong: Department of e-Business, Dong-Eui University, Busanjin-gu, Busan 47340, Korea
Myungil Kim: Div. of National Supercomputing Intelligent Simulation Center, Korea Institute of Science and Technology Information 245, Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
Cheolyoung Kim: Implant Research Laboratory, Cybermed 6-26, Yuseong-daro 1205 beon-gil, Yuseong-gu, Daejeon 34104, Korea
Dongki Park: Implant Research Laboratory, Cybermed 6-26, Yuseong-daro 1205 beon-gil, Yuseong-gu, Daejeon 34104, Korea

IJERPH, 2022, vol. 19, issue 19, 1-14

Abstract: In this study, stability evaluation is performed through structural analysis based on digital dental implant design variables. The design variables include the implant length and thickness, cortical bone thickness, and elastic modulus of the cancellous bone. Subsequently, the stress in the external cortical bone, in which numerous nerves exist, is analyzed. Results show that stress increases as the implant length decreases. However, when the implant length is 10 mm, the stress decreases, owing to stress dispersion at the lower section of the implant. Moreover, as the implant thickness increases, the stress decreases. As the elastic modulus of the cancellous bone decreases, the stress exerted on the cancellous bone decreases; consequently, the stress exerted on the cortical bone increases. Finally, as the thickness of the cortical bone increases, the stress decreases when a vertical load is applied. However, when a load is applied in the oblique direction, the stress increases. Based on data obtained via digital radiography, which is a digital dental technology, a more precise implantation plan will be established by substituting the data via structural analysis.

Keywords: ANSYS mechanical; implant length; implant thickness; bone material properties; cortical bone; computer-aided engineering (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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