植入位点及轴向对上颌中切牙即刻种植即刻负重后微动度影响的三维有限元分析

doi:10.13701/j.cnki.kqyxyj.2022.09.008

口腔医学研究 ›› 2022, Vol. 38 ›› Issue (9): 831-836.DOI: 10.13701/j.cnki.kqyxyj.2022.09.008

植入位点及轴向对上颌中切牙即刻种植即刻负重后微动度影响的三维有限元分析

杜军, 邱延菊, 万哲^*

新疆维吾尔自治区中医医院口腔科新疆乌鲁木齐 830054

收稿日期:2021-12-28 发布日期:2022-09-26
通讯作者: *万哲,E-mail:wz-1218@163.com
作者简介:杜军(1986~ ),男,河北石家庄人,硕士,主治医师,研究方向:前牙美学区种植义齿修复相关研究。
基金资助:
新疆维吾尔自治区自然科学基金(编号:2020D01C148)

Three-dimensional Finite Element Analysis of Impact of Implantation Site and Axial Direction on Fretting Degree with Immediate Implantation and Immediate Loading at Maxillary Central Incisor.

DU Jun, QIU Yanju, WAN Zhe^*

Department of Dental, Traditional Chinese Medical Hospital of Xinjiang Uygur Autonomous Region, Urumchi 830054, China.

Received:2021-12-28 Published:2022-09-26

摘要/Abstract

摘要： 目的: 基于三维有限元法,分析并探讨不同分型的上颌中切牙即刻种植即刻负重后,植入位点及轴向对种植体微动度的影响。方法: 参照1名健康成年人的口腔CBCT影像资料,建立偏唇形、中间型、偏腭型3种分型的上颌中切牙即刻种植即刻负重的三维有限元模型;模拟不同植入位点(根尖位点、偏腭/唇侧位点)及轴向(牙长轴、牙槽骨长轴);对已建立的模型以100 N的力进行不同角度(0°、30°、45°、60°、90°)的应力加载;应用ANSYS软件分析种植体的位移情况。结果: 成功建立12组不同分型的上颌中切牙即刻种植即刻负重三维有限元模型;偏唇型及偏腭型上颌中切牙行即刻种植即刻负重时,沿牙长轴方向偏腭/唇位点植入种植体更易获得较小的种植体微动度;中间型上颌中切牙行即刻种植即刻负重时,沿牙槽骨长轴方向根尖位点植入种植体更易获得较小的种植体微动度。结论: 不同的位置分型、植入位点及轴向,都会对上颌中切牙即刻种植即刻负重后种植体微动度产生影响,临床应针对不同的上颌中切牙分型,制定相应的植入位点及轴向的手术方案。

关键词: 上颌中切牙, 即刻种植即刻负重, 植入位点及轴向, 三维有限元分析

Abstract: Objective: To analyze and explore the influence of the implantation site and axial direction on the fretting degree of the implant when the maxillary central incisor is immediate implantated and immediate loaded with different typing based on the three-dimensional finite element method. Methods: The oral CBCT image data of a healthy adult were referred to establish the three-dimensional finite element model of the maxillary central incisor with three typing (partial lip, intermediate, and partial palate) of immediate implantation and immediate loading. Different implantation site (apical site and partial palatine/labial site) and axial direction (longitudinal axis of tooth and long axis of alveolar bone) were simulated. Stress with different angles (0°, 30°, 45°, 60°, 90°) were loaded. ANSYS software was used to analyze the displacement of the implant. Results: Twelve three-dimensional finite element models of the maxillary central incisor with different typing for immediate implantation and immediate loading were successfully established. For partial lip or partial palatine maxillary central incisor with immediate implantation and immediate loading, partial palate along the long axis of the tooth/lip site implantation was easier to obtain smaller fretting degree of the implant. When the intermediate maxillary central incisor is for immediate implantation and immediate loading, it is easier to obtain smaller fretting degree of the implant at the apical site along the long axis of the alveolar bone. Conclusion: Different typing, implantation site, and axial direction will affect the fretting degree of the immediate implantation and immediate loading of the maxillary central incisor. In clinical practice, different surgical plan should be formulated by different typing, implantation site, and axial direction.

Key words: maxillary central incisor, immediate implantation and immediate loading, implantation site and axial direction, three-dimensional finite element analysis

杜军, 邱延菊, 万哲. 植入位点及轴向对上颌中切牙即刻种植即刻负重后微动度影响的三维有限元分析[J]. 口腔医学研究, 2022, 38(9): 831-836.

DU Jun, QIU Yanju, WAN Zhe. Three-dimensional Finite Element Analysis of Impact of Implantation Site and Axial Direction on Fretting Degree with Immediate Implantation and Immediate Loading at Maxillary Central Incisor.[J]. Journal of Oral Science Research, 2022, 38(9): 831-836.

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植入位点及轴向对上颌中切牙即刻种植即刻负重后微动度影响的三维有限元分析

Three-dimensional Finite Element Analysis of Impact of Implantation Site and Axial Direction on Fretting Degree with Immediate Implantation and Immediate Loading at Maxillary Central Incisor.

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