Evaluation of enamel wear by 3 occlusal splint materials: An in vitro study.

Autor: Borg H; Assistant Professor of Removable Prosthodontics, Depatrment of Removable Prosthodontics, Faculty of Oral and Dental Medicine, Alsalam University, Tanta, Egypt., Azer SS; Associate Professor and Chair, Division of Restorative and Prosthetic Dentistry, College of Dentistry, The Ohio State University, Columbus, Ohio. Electronic address: azer.1@osu.edu., El Hadary A; Professor, Removable Prosthodontics, Depatrment of Removable Prosthodontics, Faculty of Oral and Dental Medicine, Future University in Egypt, Cairo, Egypt; Adjunct Professor of Prosthodontics, Depatrment of Removable Prosthodontics, Faculty of Dentistry, University of Toronto, Toronto, Canada., Helaly O; Lecturer of Removable Prosthodontics, Depatrment of Removable Prosthodontics, Faculty of Dentistry, Al-Azhar University, Cairo, Egypt., Shoeib A; Lecturer of Removable Prosthodontics, Depatrment of Removable Prosthodontics, Faculty of Dentistry, Al-Azhar University, Cairo, Egypt., Hassan M; Lecturer of Prosthodontics, Depatrment of Removable Prosthodontics, Faculty of Dental Medicine, King Salman International University, South Sinai, Egypt.
Jazyk: angličtina
Zdroj: The Journal of prosthetic dentistry [J Prosthet Dent] 2023 Nov; Vol. 130 (5), pp. 743.e1-743.e6. Date of Electronic Publication: 2023 Sep 23.
DOI: 10.1016/j.prosdent.2023.08.034
Abstrakt: Statement of Problem: Occlusal devices used to manage bruxism have been commonly fabricated from polymethyl methacrylate with the powder-liquid technique. More recently, Vertex ThermoSens (VTS) and the biocompatible high-performance polymer (BioHPP), an optimized material having polyetheretherketone (PEEK) as its basis, have been used, but little is known about the wear of these materials on human enamel.
Purpose: The purpose of this in vitro study was to assess via a mastication simulation test how 3 occlusal device materials affected the wear and roughness of enamel antagonists.
Material and Methods: A noncontact 3D optical profilometer was used to measure the enamel surface roughness (Ra) against 3 occlusal device materials: vertex regular, VTS, and PEEK high-performance polymer (BioHPP). A dual-axis mastication simulator was used to perform a 2-body wear test on specimens from each group. The test consisted of 10 000 cycles with a 70-N force and 5 to 55 °C thermocycling. Following simulated mastication, the weight of each specimen and the Ra change were compared with the Kolmogorov-Smirnov test, paired specimens t test, Wilcoxon signed-rank test, and 1-way analysis of variance (α=.05).
Results: The polyamide group caused the lowest amount of enamel wear (P<.05), while the heat-polymerized acrylic resin group induced the largest amount of enamel wear (P<.05). For polyamide and PEEK, the change in enamel surface roughness exhibited a smooth texture, whereas it found a rougher surface for the heat-polymerized acrylic resin.
Conclusions: According to this study, surface roughness and wear on human enamel were not correlated. PEEK is a promising material for the fabrication of occlusal devices.
(Copyright © 2023 Editorial Council for The Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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