Influences of implant neck design and implant–abutment joint type on peri-implant bone stress and abutment micromovement: Three-dimensional finite element analysis

Yamanishi, Yasufumi; Yamaguchi, Satoshi; Imazato, Satoshi et al.

Dental Materials, 2012, 28(11), 1126-1133

Number of Access:95（2025-06-07 06:53 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/93160

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Title
Influences of implant neck design and implant–abutment joint type on peri-implant bone stress and abutment micromovement: Three-dimensional finite element analysis
Creator
CreatorName
Yamanishi, Yasufumi
NRID
1000030397773 1000030397773
ORCID
0000-0002-4661-8821 0000-0002-4661-8821
researchmap permalink
YamaguchiS_30397773 YamaguchiS_30397773
Scopus Author ID
7403873463 7403873463
CreatorName
Yamaguchi, Satoshi
NRID
1000080243244 1000080243244
ORCID
0000-0003-3655-4809 0000-0003-3655-4809
researchmap permalink
read0014210 read0014210
Scopus Author ID
55994423600 55994423600
CreatorName
Imazato, Satoshi
NRID
1000040379079 1000040379079
researchmap permalink
nkn nkn
Scopus Author ID
7403895984 7403895984
CreatorName
Nakano, Tamaki
NRID
1000080174530 1000080174530
CreatorName
Yatani, Hirofumi
Subject
Biomechanics
Dental implant
Finite element analysis
Micromovement
Occlusal force
Description
Yamanishi Y., Yamaguchi S., Imazato S., et al. Influences of implant neck design and implant–abutment joint type on peri-implant bone stress and abutment micromovement: Three-dimensional finite element analysis. Dental Materials 28, 1126 (2012); https://doi.org/10.1016/j.dental.2012.07.160.
Abstract
Objectives: Occlusal overloading is one of the causes of peri-implant bone resorption, and many studies on stress distribution in the peri-implant bone by three-dimensional finite element analysis (3D FEA) have been performed. However, the FEA models previously reported were simplified and far from representing what occurs in clinical situations. In this study, 3D FEA was conducted with simulation of the complex structure of dental implants, and the influences of neck design and connections with an abutment on peri-implant bone stress and abutment micromovement were investigated. Methods: Three types of two-piece implant CAD models were designed: external joint with a conical tapered neck (EJ), internal joint with a straight neck (IJ), and conical joint with a reverse conical neck (CJ). 3D FEA was performed with the setting of a “contact” condition at the component interface, and stress distribution in the peri-implant bone and abutment micromovement were analyzed. Results: The shear stress was concentrated on the mesiodistal side of the cortical bone for EJ. EJ had the largest amount of abutment micromovement. While the von Mises and shear stresses around the implant neck were concentrated on the labial bone for IJ, they were distributed on the mesiodistal side of the cortical bone for CJ. CJ had the least amount of abutment micromovement. Significance: Implants with a conical joint with an abutment and reverse conical neck design may effectively control occlusal overloading on the labial bone and abutment micromovement.
Publisher
Elsevier Inc.
Source Title
Dental Materials
Volume (Issue)
28(11)
Page
1126-1133
Date of Issued
2012-11-01
Language
English
Handle URL
https://hdl.handle.net/11094/93160
PISSN
01095641
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1016/j.dental.2012.07.160
Access Rights
open access
CopyRight
©2012. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article