数字化可摘局部义齿支架设计优化方法研究

doi:10.13591/j.cnki.kqyx.2022.12.004

Abstract

Abstract: Objective To construct a three-dimensional finite element model based on digital removable partial denture framework, to analyze the effects of different modeling strategies on framework and oral soft and hard tissues, and to explore the optimal design method of digital framework. Methods One adult volunteer with complete dentition and healthy periodontal tissues was selected. On the basis of cone beam computed tomography (CBCT)and extraoral plaster model scanning, the removable partial denture was designed by 3Shape Dental System software. The maxillary Kennedy Class Ⅱ dentition defect model and removable partial denture model were established by Mimics, Geomagic Studio and HyperMesh software, and three-dimensional finite element models of the simplified group and control group (including teeth and periodontal ligament)were constructed respectively. The finite element analysis software Abaqus/CAE was used to analyze the force put on two groups of models under vertical and oblique 45° load. Results The stress distribution of framework in the simplified group was basically the same as that in the control group, and there was no significant difference in stress value between two groups. Under the vertical load, stress concentration appeared at the minor connector of the framework in both groups; distal end of the framework sank; the maximum stress was 44.39 MPa and 51.05 MPa, and the maximum displacement was 49.05 μm and 38.29 μm, respectively. Under oblique load, the major connector of the framework had a high stress zone; the stress concentration at the right angle of the Ⅰ bar was concentrated; the maximum stress was 324.58 MPa and 303.11 MPa, and the maximum displacement was 291.86 μm and 298.02 μm, respectively. Conclusion Properly simplified model can improve the modeling efficiency, and calculation results have good credibility, which can provide reference for the optimal design of clinical digital removable partial denture framework.

Key words: digitization, removable partial denture, framework, optimization, finite element analysis

CLC Number:

R783.6

QIAN Fei, XIN Haitao, LI Yujiao, DIAO Xiao'ou, LUO Huiwen, LIU Huan, WU Yulu. Study on design optimization method of digital removable partial denture framework[J]. Stomatology, 2022, 42(12): 1073-1079.

References

[1] 刘一帆,郑秀丽,王伟娜,等. 数字化设计技术在口腔修复中的应用[J]. 实用口腔医学杂志,2017,33(1):129-133.
[2] Chieruzzi M, Pagano S, Cianetti S, et al. Effect of fibre posts, bone losses and fibre content on the biomechanical behaviour of endodontically treated teeth:3D-finite element analysis[J]. Mater Sci Eng C Mater Biol Appl, 2017, 74:334-346.
[3] Kim KY, Bayome M, Park JH, et al. Displacement and stress distribution of the maxillofacial complex during maxillary protraction with buccal versus palatal plates:Finite element analysis[J]. Eur J Orthod, 2015, 37(3):275-283.
[4] Bahrami B, Shahrbaf S, Mirzakouchaki B, et al. Effect of surface treatment on stress distribution in immediately loaded dental implants:A 3D finite element analysis[J]. Dent Mater, 2014, 30(4):e89-e97.
[5] Korioth TW, Versluis A. Modeling the mechanical behavior of the jaws and their related structures by finite element(FE)analysis[J]. Crit Rev Oral Biol Med, 1997, 8(1):90-104.
[6] Shahmiri R, Das R. Finite element analysis of implant-assisted removable partial dentures:Framework design considerations[J]. J Prosthet Dent, 2017, 118(2):177-186.
[7] Kanbara R, Nakamura Y, Ochiai KT, et al. Three-dimensional finite element stress analysis:The technique and methodology of non-linear property simulation and soft tissue loading behavior for different partial denture designs[J]. Dent Mater J, 2012, 31(2):297-308.
[8] Magne P. Efficient 3D finite element analysis of dental restorative procedures using micro-CT data[J]. Dent Mater, 2007, 23(5):539-548.
[9] 韦健,徐镔亭,李清,等. 基牙牙周损伤影响可摘局部义齿应力分布的三维有限元分析[J]. 中华口腔医学杂志,2013,48(7):409-413.
[10] Kibi M, Ono T, Dong J, et al. Development of an RPD CAD system with finite element stress analysis[J]. J Oral Rehabil, 2009, 36(6):442-450.
[11] Xiao W, Li ZY, Shen SQ, et al. Influence of connection type on the biomechanical behavior of distal extension mandibular removable partial dentures supported by implants and natural teeth[J]. Comput Methods Biomech Biomed Engin, 2016, 19(3):240-247.
[12] Apicella D, Joda T, Bonadeo G, et al. Case-specific finite element analysis of dental CAD/CAM prostheses to identify design flaws prior to manufacture[J]. Am J Dent, 2016, 29(6):339-344.
[13] Peng TY, Ogawa Y, Akebono H, et al. Finite-element analysis and optimization of the mechanical properties of polyetheretherke-tone(PEEK)clasps for removable partial dentures[J]. J Prosthodont Res, 2020, 64(3):250-256.
[14] Ortiz-Puigpelat O, Lázaro-Abdulkarim A, de Medrano-Reñé JM, et al. Influence of implant position in implant-assisted removable partial denture:A three-dimensional finite element analysis[J]. J Prosthodont, 2019, 28(2):e675-e681.
[15] Suenaga H, Chen J, Yamaguchi K, et al. Mechanobiological bone reaction quantified by positron emission tomography[J]. J Dent Res, 2015, 94(5):738-744.
[16] Shahmiri R, Das R. Finite element analysis of implant-assisted removable partial denture attachment with different matrix designs during bilateral loading[J]. Int J Oral Maxillofac Implants, 2016, 31(5):e116-e127.
[17] Horner K, Islam M, Flygare L, et al. Basic principles for use of dental cone beam computed tomography:Consensus guidelines of the European Academy of Dental and Maxillofacial Radiology[J]. Dentomaxillofac Radiol, 2009, 38(4):187-195.
[18] 缑小蕊,周政,姜丹丹,等. 种植覆盖义齿修复不同骨质类型的Kennedy Ⅰ类缺失的三维有限元分析[J]. 口腔医学研究,2020,36(9):855-860.
[19] Chen X, Mao BC, Zhu ZL, et al. A three-dimensional finite element analysis of mechanical function for 4 removable partial denture designs with 3 framework materials:CoCr, Ti-6Al-4V alloy and PEEK[J]. Sci Rep, 2019, 9(1):13975.
[20] Bujtár P, Sándor GKB, Bojtos A, et al. Finite element analysis of the human mandible at 3 different stages of life[J]. Oral Surg Oral Med Oral Pathol Oral Radiol Endodontology, 2010, 110(3):301-309.
[21] Wu JL, Liu YF, Wang DC, et al. Investigation of effective intrusion and extrusion force for maxillary canine using finite element analysis[J]. Comput Methods Biomech Biomed Eng, 2019, 22(16):1294-1302.
[22] Liu YF, Fan YY, Dong HY, et al. An investigation of two finite element modeling solutions for biomechanical simulation using a case study of a mandibular bone[J]. J Biomech Eng, 2017, 139(12).doi:10.1115/1.4037633.
[23] Merema BBJ, Kraeima J, Glas HH, et al. Patient-specific finite element models of the human mandible:Lack of consensus on current set-ups[J]. Oral Dis, 2021, 27(1):42-51.
[24] Gröning F, Fagan M, O'higgins P. Modeling the human mandible under masticatory loads:Which input variables are important?[J]. Anat Rec Adv Integr Anat Evol Biol, 2012, 295(5):853-863.
[25] Wood SA, Strait DS, Dumont ER, et al. The effects of modeling simplifications on craniofacial finite element models:The alveoli(tooth sockets)and periodontal ligaments[J]. J Biomech, 2011, 44(10):1831-1838.

Study on design optimization method of digital removable partial denture framework

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