Influence of aging and manufacturing techniques on the physical and mechanical stability of occlusal device materials: A systematic review

Resumo original em inglês

O que aconteceu

Computer-aided design and computer-aided manufacturing (CAD-CAM) has introduced alternatives to the conventional fabrication of occlusal devices, though data on their physical, mechanical, and long-term durability remain limited.

The purpose of this systematic review was to assess the stability of the physical and mechanical properties of occlusal device materials subjected to degradation.

This review was registered in the open science framework (OSF) (osf.io/rjgs6) and involved 8 databases and nonpeer-reviewed sources, supplemented by manual screening. Independent study selection followed predefined criteria, and the risk of bias was assessed with the RoBDEMAT tool.

O que encontraram

Across 21 studies, milled composite resins outperformed 3-dimensionally (3D) printed and heat-polymerized or autopolymerized polymethyl methacrylate (PMMA) under artificial degradation, with printing and postpolymerization parameters influencing the physicomechanical stability of 3D printed composite resins.

Por que isso importa

Milled materials exhibited the greatest stability, heat-polymerized PMMA demonstrated intermediate performance, and autopolymerized resins performed the worst. Despite greater degradation susceptibility, advances in formulation and postprocessing suggest promising potential for 3D printed resins.

Resumo publicado sob licença CC BY. A tradução para o português ainda não chegou a este estudo.