牙槽骨水平吸收条件下上前牙全瓷联冠三维有限元模型的建立
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摘要
目的:建立牙槽骨水平吸收条件下上颌前牙全瓷联冠修复的三维有限元模型,为上前牙联冠修复后不同组织的应力分析提供基础。方法:以健康成年人为实验对象,利用CBCT扫描获取实验数据,Mimics、Geomagic studio、SolidWorks及ANSYS等计算机辅助软件,通过对牙槽骨及牙周膜组件的均匀降低模拟牙槽骨水平吸收,建立三维有限元模型。结果:建立牙槽骨水平吸收条件下上颌前牙全瓷联冠的三维有限元模型,包括7个组件:修复体、预备体、皮质骨、松质骨、黏膜、牙周膜、牙髓。结论:所建立模型形态逼真,各组件结构特性及力学参数清楚,载荷力作用下可均匀传递到各个部分,有效模拟了牙槽骨水平吸收条件下上颌前牙全瓷联冠修复后的应力状态,可以为应力分析提供基础。
Objective:To analyze the stress distribution of splinted all-ceramic crowns for maxillary anterior teeth with horizontal alveolar bone absorption through three-dimensional finite element model.Methods:Healthy adults were taken as the experimental subjects and CBCT was obtained.Computer-aided software like Geomagic studio,Mimics,SolidWorks,and ANSYS were used to model the three-dimensional finite element by uniform reduction of the alveolar bone and periodontal ligament components.Results:Three-dimensional finite element model of all-ceramic crowns of maxillary anterior teeth with horizontal alveolar bone absorption was established.It included 7components:all-ceramic splinted crowns,prepared teeth,cortical bone,cancellous bone,mucous membranes,pericementum,and pulp.Conclusion:The model is realistic,and the structural characteristics and mechanical parameters of each component are clear.The loading force can be uniformly transmitted to various parts.It can be used in stress distribution analysis.
Objective:To analyze the stress distribution of splinted all-ceramic crowns for maxillary anterior teeth with horizontal alveolar bone absorption through three-dimensional finite element model.Methods:Healthy adults were taken as the experimental subjects and CBCT was obtained.Computer-aided software like Geomagic studio,Mimics,SolidWorks,and ANSYS were used to model the three-dimensional finite element by uniform reduction of the alveolar bone and periodontal ligament components.Results:Three-dimensional finite element model of all-ceramic crowns of maxillary anterior teeth with horizontal alveolar bone absorption was established.It included 7components:all-ceramic splinted crowns,prepared teeth,cortical bone,cancellous bone,mucous membranes,pericementum,and pulp.Conclusion:The model is realistic,and the structural characteristics and mechanical parameters of each component are clear.The loading force can be uniformly transmitted to various parts.It can be used in stress distribution analysis.
引文
[1]满云娜,何惠宇.固定式恒久牙周夹板的临床应用及研究进展[J].中华老年口腔医学杂志,2010,2(1):110-112.
[2]赵铱民.主编.口腔修复学[M].第7版.人民卫生出版社,2012.96-97.
[3]曾照斌,刘海锋,冯雪.两种常用加力方式对种植钉压低上前牙力学行为影响的三维有限元分析[J].口腔医学研究,2011,5(27):372-375.
[4]陈静,何惠明,凌伟,等.建立下颌前牙牙槽骨吸收和联冠修复的三维有限元模型[J].牙体牙髓牙周病学杂志,2006,16(2):71-74.
[5]张珑,逯宜.CBCT扫描结合逆向工程软件建立邻嵌体洞型三维有限元模型研究[J].中国美容医学,2011,20(10):1562-1566.
[6]胡建,章非敏,戴宁,等.不同厚度上颌中切牙全瓷冠应力分析的有限元研究[J].华西口腔医学杂志,2012,30(4):356-359.
[7]Bendjaballah MZ.The effect of non-contact conditions in a splinted fixed partial denture on the load sharing mechanism:a finite element study[J].J Bionic Eng,2012,9(3):336-342.
[8]龚璐璐.口腔修复生物力学中三维有限元法应用的研究进展及展望[J].医用生物力学,2002,17(2):119-123.
[9] Kim T,Suh J,Kim N,et al.Optimum conditions for parallel translation of maxillary anterior teeth under retraction force determined with the finite element method[J].Am J Orthod Dentofacial Orthop,2010,137(5):639-647.
[10]孟焕新.牙周病学[M].第4版.北京:人民卫生出版社,2012.228.
[11]何红,张婉丽,李星星.固定式恒久性牙周夹板的临床应用[J].昆明医科大学学报,2018,39(1):127-130.
[12] Fischer H,Weber M,Marx R.Lifetime prediction of all-ceramic bridges by computational methods[J].J Dent Res,2003,82(3):238-242.
[13]龙红月.氧化锆全瓷冠修复的临床应用研究[J].中国美容医学,2008,17(11):1656-1657.
[14]牛文鑫,丁祖泉.三种三维有限元建模方法在跟骨模型建立中的应用和比较[J].医用生物力学,2007,22(4):1-7.
[15] Kettenbeil A,Reimann S,Reichert C,et al.Numerical simulation and biomechanical analysis of an orthodontically treated periodontally damaged dentition[J].J Orofac Orthop,2013,74(6):480-493.
[16]王野平,林小英,周慧峰.Mimics和Geomagic辅助下建立固定义齿的有限元模型[J].医用生物力学,2010,25(6):433-438.
[17] Cho SM,Choi SH,Sung SJ,et al.The effects of alveolar bone loss and miniscrew position on initial tooth displacement during intrusion of the maxillary anterior teeth:Finite element analysis[J].Korean J Orthod,2016,46(5):310-322.
[2]赵铱民.主编.口腔修复学[M].第7版.人民卫生出版社,2012.96-97.
[3]曾照斌,刘海锋,冯雪.两种常用加力方式对种植钉压低上前牙力学行为影响的三维有限元分析[J].口腔医学研究,2011,5(27):372-375.
[4]陈静,何惠明,凌伟,等.建立下颌前牙牙槽骨吸收和联冠修复的三维有限元模型[J].牙体牙髓牙周病学杂志,2006,16(2):71-74.
[5]张珑,逯宜.CBCT扫描结合逆向工程软件建立邻嵌体洞型三维有限元模型研究[J].中国美容医学,2011,20(10):1562-1566.
[6]胡建,章非敏,戴宁,等.不同厚度上颌中切牙全瓷冠应力分析的有限元研究[J].华西口腔医学杂志,2012,30(4):356-359.
[7]Bendjaballah MZ.The effect of non-contact conditions in a splinted fixed partial denture on the load sharing mechanism:a finite element study[J].J Bionic Eng,2012,9(3):336-342.
[8]龚璐璐.口腔修复生物力学中三维有限元法应用的研究进展及展望[J].医用生物力学,2002,17(2):119-123.
[9] Kim T,Suh J,Kim N,et al.Optimum conditions for parallel translation of maxillary anterior teeth under retraction force determined with the finite element method[J].Am J Orthod Dentofacial Orthop,2010,137(5):639-647.
[10]孟焕新.牙周病学[M].第4版.北京:人民卫生出版社,2012.228.
[11]何红,张婉丽,李星星.固定式恒久性牙周夹板的临床应用[J].昆明医科大学学报,2018,39(1):127-130.
[12] Fischer H,Weber M,Marx R.Lifetime prediction of all-ceramic bridges by computational methods[J].J Dent Res,2003,82(3):238-242.
[13]龙红月.氧化锆全瓷冠修复的临床应用研究[J].中国美容医学,2008,17(11):1656-1657.
[14]牛文鑫,丁祖泉.三种三维有限元建模方法在跟骨模型建立中的应用和比较[J].医用生物力学,2007,22(4):1-7.
[15] Kettenbeil A,Reimann S,Reichert C,et al.Numerical simulation and biomechanical analysis of an orthodontically treated periodontally damaged dentition[J].J Orofac Orthop,2013,74(6):480-493.
[16]王野平,林小英,周慧峰.Mimics和Geomagic辅助下建立固定义齿的有限元模型[J].医用生物力学,2010,25(6):433-438.
[17] Cho SM,Choi SH,Sung SJ,et al.The effects of alveolar bone loss and miniscrew position on initial tooth displacement during intrusion of the maxillary anterior teeth:Finite element analysis[J].Korean J Orthod,2016,46(5):310-322.