激光与化学义齿消毒剂对CAD-CAM和传统义齿树脂表面特性影响的比较评价：一项体外实验研究。

Comparative evaluation of the effects of laser and chemical denture disinfectants on the surface characteristics of CAD-CAM and conventional denture resins: An in vitro experimental study.

作者信息

Moussa Rania, Ellakany Passent, Fouda Shaimaa M, El-Din Mai Salah

机构信息

Department of Substitutive Dental Sciences, College of Dentistry, Taibah University, Al-Madinah Al-Munawwarah, Saudi Arabia.

Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.

出版信息

J Prosthodont. 2024 Sep 19. doi: 10.1111/jopr.13952.

DOI:10.1111/jopr.13952

PMID:39300670

Abstract

PURPOSE

The purpose of this study was to assess the effect of Ga-Al-Ar diode, Nd:YAG lasers, and chemical disinfectants (NaOCl, vinegar, and Corega) on surface roughness (Ra) and hardness (VHN) of polymethylmethacrylate (PMMA), thermoplastic polyamide, milled and 3D-printed denture base resins.

MATERIALS AND METHODS

About 432 specimens of PMMA, thermoplastic polyamide, milled, and 3D-printed resins were divided into six subgroups (n = 18): distilled water (control:C), Ga-Al-Ar diode laser (L1), Nd:YAG laser (L2), 1% sodium hypochlorite (NaOCl), vinegar (AA), and Corega (CR). Each specimen's Ra and VHN were measured. Surface topography assessment was done using scanning electron microscopy (SEM). Analysis was done using ANOVA and post hoc Tukey's test (p = 0.05).

RESULTS

A significant difference was noted in Ra and VHN as affected by denture base materials, surface disinfectants, and their interaction (p < 0.001). Results showed a significant increase in Ra of PMMA with NaOCL (p < 0.001), AA (p = 0.005), and CR (p = 0.009), thermoplastic polyamide with L1 (p = 0.012), L2 (p = 0.015), NaOCL AA, and CR (p < 0.001 each), milled resin with AA NaOCL, and CR (p < 0.001 each), and 3D-printed resin with L1, NaOCl, AA (p < 0.001 each), and CR (p = 0.008). The VHN increased in PMMA with NaOCL (p < 0.001), AA (p = 0.044), and CR (p < 0.001), thermoplastic polyamide with L1 (p = 0.037), milled resin with L1, L2, and CR (p < 0.001 each), and 3D-printed resin with L1, NaOCl (p < 0.001 each), and decreased with CR (p = 0.007).

CONCLUSION

The tested properties showed variations affected by denture base material and surface disinfectants. Laser treatments induced smoother surfaces than chemical disinfectants. Laser improved the surface hardness of CAD-CAM resins, while chemical immersion improved that of PMMA.

摘要

目的

本研究旨在评估镓铝氩二极管激光、钕钇铝石榴石激光以及化学消毒剂（次氯酸钠、醋和Corega）对聚甲基丙烯酸甲酯（PMMA）、热塑性聚酰胺、铣削和3D打印义齿基托树脂的表面粗糙度（Ra）和硬度（维氏硬度，VHN）的影响。

材料与方法

将约432个PMMA、热塑性聚酰胺、铣削和3D打印树脂样本分为六个亚组（n = 18）：蒸馏水（对照组：C）、镓铝氩二极管激光（L1）、钕钇铝石榴石激光（L2）、1%次氯酸钠（NaOCl）、醋（AA）和Corega（CR）。测量每个样本的Ra和VHN。使用扫描电子显微镜（SEM）进行表面形貌评估。采用方差分析和事后Tukey检验进行分析（p = 0.05）。

结果

观察到义齿基托材料、表面消毒剂及其相互作用对Ra和VHN有显著差异（p < 0.001）。结果显示，PMMA与NaOCL（p < 0.001）、AA（p = 0.005）和CR（p = 0.009）、热塑性聚酰胺与L1（p = 0.012）、L2（p = 0.015）、NaOCL、AA和CR（各p < 0.001）、铣削树脂与AA、NaOCL和CR（各p < 0.001）以及3D打印树脂与L1、NaOCl、AA（各p < 0.001）和CR（p = 0.008）组合时，Ra显著增加。PMMA与NaOCL（p < 0.001）、AA（p = 0.044）和CR（p < 那么0.001）、热塑性聚酰胺与L1（p = 0.037）、铣削树脂与L1、L2和CR（各p < 0.001）以及3D打印树脂与L1、NaOCl（各p < 0.001）组合时，VHN增加，而与CR组合时VHN降低（p = 0.007）。