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下颌第一恒磨牙用银汞合金和复合树脂修复后的生物力学应力分析：一项计算机化有限元研究。

Biomechanical Stress Analysis of Mandibular First Permanent Molar; Restored with Amalgam and Composite Resin: A Computerized Finite Element Study.

作者信息

Musani Iqbal, Prabhakar A R

机构信息

Professor, Department of Pedodontics and Preventive Dentistry, Bharati Vidyapeeth's Dental College and Hospital, Pune Maharashtra, India.

Professor and Head, Department of Pedodontics and Preventive Dentistry, Bapuji Dental College and Hospital, Davangere Karnataka, India.

出版信息

Int J Clin Pediatr Dent. 2010 Jan-Apr;3(1):5-14. doi: 10.5005/jp-journals-10005-1047. Epub 2010 Apr 15.

DOI:10.5005/jp-journals-10005-1047
PMID:27625550
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4955038/
Abstract

Normal mastication with its varying magnitude and direction generates considerable reactionary stresses in teeth and their supporting tissues. The structure of the human tooth and its supporting tissues is a complex assemblage of materials of varied mechanical properties. The finite element method (FEM), a modern technique of numerical stress analysis, has the great advantage of being applicable to solids of irregular geometry and heterogeneous material properties and therefore ideally suited to the examination of structural behavior of teeth. The mandibular first permanent molar is one of the earliest permanent teeth to erupt in the oral cavity and hence most prone to caries. The purpose of the present study was to construct a two-dimensional FE model of the mandibular first permanent molar and its supporting structures, using a FE software called NISA II-Display III, EMRC, USA to study the following: • To compare stress distributions patterns when a modeled Class I Cavity was restored with dental amalgam and composite resin. • To compare the stress distributions pattern when the load was applied to different to locations, i.e.: At the mesial cusp tip, and at the center of the occlusal surface. Both amalgam and composite resin showed similar stress distribution pattern, however, the magnitudes of stresses generated in the tooth restored with composite resin were higher. Thus, amalgam is a better restorative material in distributing stresses.

摘要

正常咀嚼时其大小和方向不断变化，会在牙齿及其支持组织中产生相当大的反应应力。人类牙齿及其支持组织的结构是具有不同力学性能的材料的复杂组合。有限元法（FEM）是一种现代数值应力分析技术，具有适用于几何形状不规则和材料性能不均匀的固体的巨大优势，因此非常适合研究牙齿的结构行为。下颌第一恒磨牙是口腔中最早萌出的恒牙之一，因此最容易患龋齿。本研究的目的是使用美国EMRC的名为NISA II-Display III的有限元软件构建下颌第一恒磨牙及其支持结构的二维有限元模型，以研究以下内容：• 比较用牙科汞合金和复合树脂修复模拟I类洞时的应力分布模式。• 比较将载荷施加到不同位置时的应力分布模式，即：近中尖顶处和咬合面中心处。汞合金和复合树脂都显示出相似的应力分布模式，然而，用复合树脂修复的牙齿中产生的应力大小更高。因此，汞合金在应力分布方面是一种更好的修复材料。

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本文引用的文献

1
Modeling the mechanical behavior of the jaws and their related structures by finite element (FE) analysis.通过有限元（FE）分析对颌骨及其相关结构的力学行为进行建模。
Crit Rev Oral Biol Med. 1997;8(1):90-104. doi: 10.1177/10454411970080010501.
2
Tooth stiffness with composite veneers: a strain gauge and finite element evaluation.复合贴面修复牙齿的刚度：应变片与有限元评估
Dent Mater. 1994 Jul;10(4):247-52. doi: 10.1016/0109-5641(94)90069-8.
3
Finite element stress analysis of restored teeth.修复后牙齿的有限元应力分析
“MOTRCS”因素对各种直接和间接修复体性能的影响：有限元分析
J Conserv Dent. 2021 Jan-Feb;24(1):15-23. doi: 10.4103/JCD.JCD_471_20. Epub 2021 Jul 5.
4
Effect of Direct and Indirect Materials on Stress Distribution in Class II MOD Restorations: A 3D-Finite Element Analysis Study.直接和间接材料对 II 类 MOD 修复体中应力分布的影响：三维有限元分析研究。
Biomed Res Int. 2020 Dec 15;2020:7435054. doi: 10.1155/2020/7435054. eCollection 2020.
5
Restorative treatment in a case of amelogenesis imperfecta and 9-year follow-up: a case report.牙釉质发育不全的修复治疗及 9 年随访：病例报告。
Head Face Med. 2020 Nov 19;16(1):28. doi: 10.1186/s13005-020-00243-1.
Dent Mater. 1987 Aug;3(4):200-6. doi: 10.1016/S0109-5641(87)80034-9.
4
Analysis of stresses and breaking loads for Class I cavity preparations in mandibular first molars.下颌第一磨牙Ⅰ类洞预备的应力与断裂载荷分析。
Quintessence Int. 1989 Mar;20(3):205-10.
5
Finite element stress analysis of the crowns of normal and restored teeth.正常牙和修复牙牙冠的有限元应力分析
J Dent Res. 1976 Nov-Dec;55(6):1004-11. doi: 10.1177/00220345760550060201.
6
Effects of cement bases on the stresses and deflections in composite restorations.粘结基底对复合树脂修复体应力和挠曲的影响。
J Dent Res. 1976 Jan-Feb;55(1):115-20. doi: 10.1177/00220345760550010301.