Dental Biomaterials Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
Department of Restorative Dentistry, College of Dentistry, Gulf Medical University, Ajman P.O. Box 4184, United Arab Emirates.
Int J Mol Sci. 2022 May 20;23(10):5737. doi: 10.3390/ijms23105737.
Amidst growing technological advancements, newer denture base materials and polymerization methods have been introduced. During fabrication, certain mechanical properties are vital for the clinical longevity of the denture base. This systematic review aimed to explore the effect of newer denture base materials and/or polymerization methods on the mechanical properties of the denture base. An electronic database search of English peer-reviewed published papers was conducted using related keywords from 1 January 2011, up until 31 December 2021. This systematic review was based on guidelines proposed by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The search identified 579 papers. However, the inclusion criteria recognized 22 papers for eligibility. The risk of bias was moderate in all studies except in two where it was observed as low. Heat cure polymethyl methacrylate (PMMA) and compression moulding using a water bath is still a widely used base material and polymerization technique, respectively. However, chemically modified PMMA using monomers, oligomers, copolymers and cross-linking agents may have a promising result. Although chemically modified PMMA resin might enhance the mechanical properties of denture base material, no clear inferences can be drawn about the superiority of any polymerization method other than the conventional compression moulding technique.
在技术不断进步的背景下，新型义齿基托材料和聚合方法相继问世。在义齿制作过程中，某些机械性能对于义齿基托的临床寿命至关重要。本系统评价旨在探讨新型义齿基托材料和/或聚合方法对义齿基托机械性能的影响。我们采用相关关键词，对 2011 年 1 月 1 日至 2021 年 12 月 31 日期间发表的英文同行评审文献进行了电子数据库检索。本系统评价基于系统评价和荟萃分析的首选报告项目（PRISMA）提出的指南进行。检索共识别出 579 篇论文，但纳入标准仅认可其中 22 篇符合条件。除了两项观察到低风险偏倚的研究外，所有研究的风险偏倚均为中度。热凝聚甲基丙烯酸甲酯（PMMA）和水浴压缩成型仍然是广泛使用的基托材料和聚合技术。然而，使用单体、低聚物、共聚物和交联剂对 PMMA 进行化学改性可能会产生有前景的结果。虽然化学改性 PMMA 树脂可能会增强义齿基托材料的机械性能，但除了传统的压缩成型技术之外，对于任何聚合方法的优越性，目前尚无法得出明确结论。
