湖北医药学院学报2025，Vol.44Issue(6)：708-713,6.DOI:10.13819/j.issn.2096-708X.2025.06.010
基于三维有限元分析的不同材料前牙粘接桥生物力学性能研究
Biomechanical Performance of Different Materials in Anterior Resin-Bonded Bridge Based on Three-Dimensional Finite Element Analysis
摘要
Abstract
Objective To compare the mechanical properties of four materials-gold alloy,fiber-reinforced composite resin,zirconia,and polyetheretherketone(PEEK)-in anterior resin-bonded bridge using three-dimensional finite element analy-sis(FEA),providing theoretical guidance for clinical material selection.Methods CBCT imaging was used to scan the maxillary dentition of an adult to simulate the scenario of a missing upper lateral incisor(#22).A three-dimensional finite element model of a two-unit cantilever resin-bonded fixed dental prosthesis(RBFDP)replacing the maxillary lateral inci-sor was constructed.The model included teeth,periodontal ligaments,alveolar bone,and resin-bonded bridge,with me-chanical parameters assigned for fiber-reinforced composite resin,gold alloy,zirconia,and PEEK separately.With appro-priate boundary conditions and loading conditions set,FEA was performed to systematically evaluate the stress distribution,displacement,and deformation characteristics of different materials in resin-bonded bridge.Results The maximum princi-pal stress values ranked from highest to lowest as follows:gold alloy＞zirconia＞fiber-reinforced composite resin＞PEEK.In all four models,stress was primarily concentrated at the connectors of the prosthesis and the cervical margins of the abut-ment teeth on the side adjacent to the edentulous space.Conclusion High elastic modulus materials,such as zirconia and gold alloy,tend to result in stress concentrations in both the prosthesis and the abutment teeth,while low elastic modulus materials,such as PEEK,can effectively disperse stress within the prosthesis.However,it is necessary to optimize the bonding interface design and reduce the risk of interface failure.In clinical selection of materials,we should consider the stiffness and interfacial durability.关键词
前牙粘接桥/三维有限元分析/金合金/纤维增强复合树脂/氧化锆/聚醚醚酮Key words
Anterior resin-bonded bridge/Three-dimensional finite element analysis/Gold alloy/Fiber-reinforced com-posite resin/Zirconia/Polyetheretherketone (PEEK)引用本文复制引用
WANG Si-qi,YE Li-jun,ZHOU Wei-bin,ZHOU Xin-chun,ZENG Chen-chen..基于三维有限元分析的不同材料前牙粘接桥生物力学性能研究[J].湖北医药学院学报,2025,44(6):708-713,6.基金项目
湖北医药学院研究生科技创新项目(YC202579) （YC202579）
