Understanding the Stress Distribution on Anatomic Customized Root-Analog Dental Implant at Bone-Implant Interface for Different Bone Densities.
Understanding the Stress Distribution on Anatomic Customized Root-Analog Dental Implant at Bone-Implant Interface for Different Bone Densities.
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DOI：
10.3390/ma15186379
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发表时间：
2022-09-14
期刊：
影响因子：
--
通讯作者：
Pimkhaokham A
中科院分区：
文献类型：
--
作者：
Nimmawitt P;Aliyu AAA;Lohwongwatana B;Arunjaroensuk S;Puncreobutr C;Mattheos N;Pimkhaokham A
本研究的目的是通过有限元分析（FEA）评估骨组织和骨-种植体界面上的应力分布的定制解剖根模拟牙种植体（RAI）的不同类型的骨密度。从CBCT数据库中选择下颌右第二前磨牙。将DICOM文件转换为STL文件，以在FEA软件中创建CAD模型。建立骨边界模型，同时确定骨密度类型I-IV。在骨组织和骨-植入物界面测量Von Mises应力。为了验证模型，RAI是通过激光粉末床融合（L-PBF）方法3D打印的。结果表明，所有RAI设计均不会引起塑性变形或断裂，导致应力低于天然骨和种植体的极限拉伸应力。与传统的螺钉型种植体相比，RAI在骨组织和骨-种植体界面周围具有更有利的应力分布模式。发现多孔结构的存在降低了IV型骨密度中松质骨的应力。
The aim of this study is to assess the stress distribution on the bone tissue and bone-implant interface of a customized anatomic root-analog dental implant (RAI) by means of finite element analysis (FEA) for different types of bone density. A mandibular right second premolar was selected from the CBCT database. A DICOM file was converted to an STL file to create a CAD model in FEA software. The bone boundary model was created, while bone density types I–IV were determined. Von Mises stress was measured at bone tissues and bone-implant interfaces. To validate the models, the RAI was 3D printed through a laser powder-bed fusion (L-PBF) approach. The results revealed that all RAI designs could not cause plastic deformation or fracture resulting in lower stress than the ultimate tensile stress of natural bone and implant. Compared to a conventional screw-type implant, RAIs possess a more favorable stress distribution pattern around the bone tissue and the bone-implant interface. The presence of a porous structure was found to reduce the stress at cancellous bone in type IV bone density.
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影响因子：
7.7
作者：
Linetskiy, Igor;Demenko, Vladyslav;Yefremov, Oleg
通讯作者：
Yefremov, Oleg
影响因子：
5.4
作者：
Decha-umphai, Dechawut;Chunate, H-thaichnok;Khamwannah, Jirapon
通讯作者：
Khamwannah, Jirapon
DOI：
10.1016/s1003-6326(11)60903-5
发表时间：
2011-07-01
影响因子：
4.5
作者：
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通讯作者：
Wang Rui-fang
DOI：
10.3390/ma14216576
发表时间：
2021-11-01
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Chunate HT;Khamwannah J;Aliyu AAA;Tantavisut S;Puncreobutr C;Khamkongkaeo A;Tongyam C;Tumkhanon K;Phetrattanarangsi T;Chanamuangkon T;Sitthiwanit T;Decha-Umphai D;Pongjirawish P;Lohwongwatana B
通讯作者：
Lohwongwatana B
影响因子：
1.6
作者：
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通讯作者：
Deng, Feilong