Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis
The initial stability of a dental implant is known to be an indicator of osseointegration at immediate loading upon insertion. Implant designs have a fundamental role in the initial stability. Although new designs with advanced surface technology have been suggested for the initial stability of impl...
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doaj-b67e88e64fde49b09da07f1db1d713622020-11-24T21:31:59ZengMDPI AGMaterials1996-19442019-08-011217274910.3390/ma12172749ma12172749Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical AnalysisWon Hyeon Kim0Jae-Chang Lee1Dohyung Lim2Young-Ku Heo3Eun-Sung Song4Young-Jun Lim5Bongju Kim6Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, KoreaBio-based Chemistry Research Center, Korea Research Institute of Chemical Technology, Ulsan 44429, KoreaDepartment of Mechanical Engineering, Sejong University, Seoul 05006, KoreaGlobal Academy of Osseointegration, Seoul 03080, KoreaClinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, KoreaDepartment of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, KoreaClinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, KoreaThe initial stability of a dental implant is known to be an indicator of osseointegration at immediate loading upon insertion. Implant designs have a fundamental role in the initial stability. Although new designs with advanced surface technology have been suggested for the initial stability of implant systems, verification is not simple because of various assessment factors. Our study focused on comparing the initial stability between two different implant systems via design aspects. A simulated model corresponding to the first molar derived from the mandibular bone was constructed. Biomechanical characteristics between the two models were compared by finite element analysis (FEA). Mechanical testing was also performed to derive the maximum loads for the two implant systems. CMI IS-III active (IS-III) had a more desirable stress distribution than CMI IS-II active (IS-II) in the surrounding bone region. Moreover, IS-III decreased the stress transfer to the nerve under the axial loading direction more than IS-II. Changes of implant design did not affect the maximum load. Our analyses suggest that the optimized design (IS-III), which has a bigger bone volume without loss of initial fixation, may minimize the bone damage during fixture insertion and we expect greater effectiveness in older patients.https://www.mdpi.com/1996-1944/12/17/2749implant designdental implantsbiomechanicsfinite element analysisprimary stabilitydental nerve |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Won Hyeon Kim Jae-Chang Lee Dohyung Lim Young-Ku Heo Eun-Sung Song Young-Jun Lim Bongju Kim |
spellingShingle |
Won Hyeon Kim Jae-Chang Lee Dohyung Lim Young-Ku Heo Eun-Sung Song Young-Jun Lim Bongju Kim Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis Materials implant design dental implants biomechanics finite element analysis primary stability dental nerve |
author_facet |
Won Hyeon Kim Jae-Chang Lee Dohyung Lim Young-Ku Heo Eun-Sung Song Young-Jun Lim Bongju Kim |
author_sort |
Won Hyeon Kim |
title |
Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis |
title_short |
Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis |
title_full |
Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis |
title_fullStr |
Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis |
title_full_unstemmed |
Optimized Dental Implant Fixture Design for the Desirable Stress Distribution in the Surrounding Bone Region: A Biomechanical Analysis |
title_sort |
optimized dental implant fixture design for the desirable stress distribution in the surrounding bone region: a biomechanical analysis |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2019-08-01 |
description |
The initial stability of a dental implant is known to be an indicator of osseointegration at immediate loading upon insertion. Implant designs have a fundamental role in the initial stability. Although new designs with advanced surface technology have been suggested for the initial stability of implant systems, verification is not simple because of various assessment factors. Our study focused on comparing the initial stability between two different implant systems via design aspects. A simulated model corresponding to the first molar derived from the mandibular bone was constructed. Biomechanical characteristics between the two models were compared by finite element analysis (FEA). Mechanical testing was also performed to derive the maximum loads for the two implant systems. CMI IS-III active (IS-III) had a more desirable stress distribution than CMI IS-II active (IS-II) in the surrounding bone region. Moreover, IS-III decreased the stress transfer to the nerve under the axial loading direction more than IS-II. Changes of implant design did not affect the maximum load. Our analyses suggest that the optimized design (IS-III), which has a bigger bone volume without loss of initial fixation, may minimize the bone damage during fixture insertion and we expect greater effectiveness in older patients. |
topic |
implant design dental implants biomechanics finite element analysis primary stability dental nerve |
url |
https://www.mdpi.com/1996-1944/12/17/2749 |
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1725959051390484480 |