AccScience Publishing / IJB / Volume 10 / Issue 5 / DOI: 10.36922/ijb.3453
RESEARCH ARTICLE

 A functionally graded gyroid-type three-periodic minimal surface framework applied to implant-supported fixed complete dentures

Jiwei Ren1 Renkai Huang1,2* Linqing Huang3 Shaoying Yang1 Chunrong Pan1 Yuchun Sun2,4,5 Sukun Tian2,4,5* Xuehua Wu1 Dongsheng Wang6,7,8 Youwen Yang1,8*
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1 Department of Intelligent Manufacturing, School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China
2 NHC Key Laboratory of Digital Stomatology, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
3 Institute of Green Metallurgy and Process Intensification, School of Metallurgical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China
4 Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
5 National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China
6 Advanced Copper-based Material Industry Generic Technology Research Center of Anhui Province, Scool of Mechanical Engineering, Tongling University, Tongling, Anhui, China
7 Key Laboratory of Construction Hydraulic Robots of Anhui Higher Education Institutes, Scool of Mechanical Engineering, Tongling University, Tongling, Anhui, China
8 Key Laboratory of Additive Manufacturing of Tongling City, Scool of Mechanical Engineering, Tongling University, Tongling, Anhui, China
IJB 2024, 10(5), 3453 https://doi.org/10.36922/ijb.3453
Submitted: 19 April 2024 | Accepted: 30 May 2024 | Published: 19 July 2024
© 2024 by the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )
Abstract

Titanium alloy, particularly Ti6Al4V, is commonly used for constructing the framework of implant-supported fixed complete dentures (IFCDs) but exhibits poor specific strength and impact toughness. Three-periodic minimal surface (TPMS) porous structures have the advantages of high specific strength, lightweight, and shock and energy absorption. Therefore, the functionally graded TPMS porous structure was adopted to design the framework for IFCDs in this study. Nine types of TPMS-based lattice structures with radial gradient variations were designed. Finite element analysis and experimental results indicate that the relative density increases outward and the cell size decreases outward from the center. The B-I porous structure has the highest strength and impact toughness compared to other gradient porous structure types. Moreover, the IFCD framework, utilizing the B-I porous structure, exhibited a 50% reduction in weight compared to the solid framework. When compared to the hollow framework with the same weight, the B-I framework demonstrated a 42.81% lower maximum equivalent stress under normal chewing conditions without undergoing plastic deformation. Therefore, the B-I framework meets the mechanical performance requirements for daily chewing and exhibits superior mechanical properties over conventional structures.

Keywords
Implant-supported fixed complete dentures
Porous frameworks
Three-periodic minimal surfaces
Functional gradient
Mechanical properties
Funding
This work was supported by the Project Supported by the (i) National Natural Science Foundation of China (No. 52165043), (ii) Beijing Natural Science Foundation and Haidian Original Innovation Joint Fund (No. L232145), (iii) Open Project of NHC Key Laboratory of Digital Stomatology of Peking University School of Stomatology (PKUSS20230501), (iv) Science and Technology Research Project of Department of Education of Jiangxi Provincial, China (No. GJJ210877), (v) High-level Talents Scientific Research Start-up Program of Jiangxi University of Science and Technology (No. 205200100556, No. 205200100350), (vi) Jiangxi Provincial Natural Science Foundation of China (20224ACB214008), (vii) Anhui Natural Science Foundation (2308085ME171), (viii) The University Synergy Innovation Program of Anhui Province (GXXT- 2023-025; GXXT-2023-026), and (ix) Jiangxi Provincial Cultivation Program for Academic and Technical Leaders of Major Subjects (20225BCJ23008).
Conflict of interest
The authors declare no conflicts of interest.
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International Journal of Bioprinting, Electronic ISSN: 2424-8002 Print ISSN: 2424-7723, Published by AccScience Publishing