Detail publikace
MKP analýza dentálních implantátů v neatrofické a atrofované kostní tkáni dolní čelisti
MARCIÁN, P. BORÁK, L. VALÁŠEK, J. KAISER, J. FLORIAN, Z. WOLFF, J.
Český název
MKP analýza dentálních implantátů v neatrofické a atrofované kostní tkáni dolní čelisti
Anglický název
Finite Element Analysis of Dental Implant Loading on Atrophic and Non-atrophic Cancellous and Cortical Mandibular Bone - a Feasibility Study
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The first aim of this study is to assess displacements and micro-strain induced on different grades of atrophic cortical and trabecular mandibular bone by axially loaded dental implants using finite element analysis (FEA). The second aim was to assess the micro-strain induced by different implant geometries and the levels of bone-to-implant contact (BIC) on the surrounding bone. Six mandibular bone segments demonstrating different grades of mandibular bone atrophy and various bone volume fractions (from 0.149 to 0.471) were imaged using a micro-CT device. The acquired bone STL models and implant (Brånemark, Straumann, and Ankylos) were merged into a three-dimensional finite elements structure. The mean displacement value for all implants was 3.1 um. Displacements were lower in the group with a strong BIC. The results indicated that the maximum strain values of cortical and cancellous bone increased with lower bone density. Strain distribution is the first and foremost dependent on the shape of bone and architecture of cancellous bone. The geometry of the implant, thread patterns, grade of bone atrophy and BIC all affect the displacement and micro-strain on the mandible bone. Preoperative finite element analysis could offer improved predictability in the long-term outlook of dental implant restorations.
Český abstrakt
The first aim of this study is to assess displacements and micro-strain induced on different grades of atrophic cortical and trabecular mandibular bone by axially loaded dental implants using finite element analysis (FEA). The second aim was to assess the micro-strain induced by different implant geometries and the levels of bone-to-implant contact (BIC) on the surrounding bone. Six mandibular bone segments demonstrating different grades of mandibular bone atrophy and various bone volume fractions (from 0.149 to 0.471) were imaged using a micro-CT device. The acquired bone STL models and implant (Brånemark, Straumann, and Ankylos) were merged into a three-dimensional finite elements structure. The mean displacement value for all implants was 3.1 um. Displacements were lower in the group with a strong BIC. The results indicated that the maximum strain values of cortical and cancellous bone increased with lower bone density. Strain distribution is the first and foremost dependent on the shape of bone and architecture of cancellous bone. The geometry of the implant, thread patterns, grade of bone atrophy and BIC all affect the displacement and micro-strain on the mandible bone. Preoperative finite element analysis could offer improved predictability in the long-term outlook of dental implant restorations.
Anglický abstrakt
The first aim of this study is to assess displacements and micro-strain induced on different grades of atrophic cortical and trabecular mandibular bone by axially loaded dental implants using finite element analysis (FEA). The second aim was to assess the micro-strain induced by different implant geometries and the levels of bone-to-implant contact (BIC) on the surrounding bone. Six mandibular bone segments demonstrating different grades of mandibular bone atrophy and various bone volume fractions (from 0.149 to 0.471) were imaged using a micro-CT device. The acquired bone STL models and implant (Brånemark, Straumann, and Ankylos) were merged into a three-dimensional finite elements structure. The mean displacement value for all implants was 3.1 um. Displacements were lower in the group with a strong BIC. The results indicated that the maximum strain values of cortical and cancellous bone increased with lower bone density. Strain distribution is the first and foremost dependent on the shape of bone and architecture of cancellous bone. The geometry of the implant, thread patterns, grade of bone atrophy and BIC all affect the displacement and micro-strain on the mandible bone. Preoperative finite element analysis could offer improved predictability in the long-term outlook of dental implant restorations.
Klíčová slova česky
dentální implantáty, mikro-CT, metoda konečných prvků, zub-kost rozhraní
Klíčová slova anglicky
Dental Implant, Micro-CT, Mandible, Finite Element Analysis, Bone-Implant-Contact
Rok RIV
2014
Vydáno
18.12.2014
Nakladatel
ELSEVIER SCI LTD
Místo
ENGLAND, OXFORD
ISSN
0021-9290
Ročník
47
Číslo
16
Strany od–do
3830–3836
Počet stran
7
BIBTEX
@article{BUT110058,
author="Petr {Marcián} and Libor {Borák} and Jiří {Valášek} and Jozef {Kaiser} and Zdeněk {Florian} and Jan {Wolff},
title="Finite Element Analysis of Dental Implant Loading on Atrophic and Non-atrophic Cancellous and Cortical Mandibular Bone – a Feasibility Study",
year="2014",
volume="47",
number="16",
month="December",
pages="3830--3836",
publisher="ELSEVIER SCI LTD",
address="ENGLAND, OXFORD",
issn="0021-9290"
}