Microhardness and Gloss of a New CAD/CAM Hybrid Material Following Accelerated Aging and Coffee Immersion.

IF 1.7 4区工程技术 Q3 OPTICS

Applied optics Pub Date : 2023-12-18 DOI:10.11607/ijp.7726

Mohammad D Al Amri, Nawaf Labban, Saleh M Alhijji, Hassan Alamri, Mounir Iskandar, Jeffrey A Platt

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引用次数: 0

Abstract

Purpose: To evaluate and compare the effect of accelerated aging and coffee immersion on the microhardness and gloss of a new computer-aided design and computer-aided manufacturing (CAD/CAM) hybrid material (Crystal Ultra) to those of contemporary restorative materials.

Materials and methods: A total of 160 specimens (12 × 14 × 1 mm ± 0.05 mm) were obtained from IPS e.max (IPS), VITA Enamic (VE), Crystal Ultra (CU), Lava Ultimate (LU), and CeraSmart (CS) high-translucency CAD/CAM blocks. The Vickers microhardness and gloss of the specimens were determined after thermocycling and coffee immersion. Data analysis was performed using SPSS (α = .05).

Results: IPS and CS specimens exhibited the highest (572.66 ± 11.30) and lowest (61.92 ± 3.91) microhardness, respectively. The highest gloss was observed with IPS specimens (3.31 ± 0.32), and LU specimens showed the lowest gloss (2.33 ± 0.06). A significant difference in gloss was observed between the materials at all measurement intervals (P < .01), except at T0 (P = .43). IPS specimens showed no significant changes in either group at any measurement interval.

Conclusions: The microhardness and gloss of the new CU material were comparable to those of the tested contemporary hybrid restorative materials. Glass-ceramic showed superior hardness and gloss compared to hybrid restorative materials. Accelerated aging with thermocycling and staining significantly affected the microhardness and gloss of all tested CAD/CAM materials.

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加速老化和咖啡浸泡后新型 CAD/CAM 混合材料的显微硬度和光泽度。

目的：评估和比较加速老化和咖啡浸泡对新型计算机辅助设计和计算机辅助制造（CAD/CAM）混合材料（Crystal Ultra）与当代修复材料的显微硬度和光泽度的影响：从 IPS e.max (IPS)、VITA Enamic (VE)、Crystal Ultra (CU)、Lava Ultimate (LU) 和 CeraSmart (CS) 高透明度 CAD/CAM 块体中获得了 160 个试样（12 × 14 × 1 mm ± 0.05 mm）。试样的维氏硬度和光泽度是在热循环和咖啡浸泡后测定的。使用 SPSS 进行数据分析（α = .05）：结果：IPS 和 CS 试样的显微硬度分别最高（572.66 ± 11.30）和最低（61.92 ± 3.91）。IPS 试样的光泽度最高（3.31 ± 0.32），LU 试样的光泽度最低（2.33 ± 0.06）。除 T0（P = 0.43）外，在所有测量时间间隔内，不同材料的光泽度均存在明显差异（P < 0.01）。IPS 试样在任何测量时间间隔内均无明显变化：结论：新型 CU 材料的微硬度和光泽度与测试过的当代混合修复材料相当。玻璃陶瓷的硬度和光泽度均优于混合修复材料。热循环加速老化和染色会显著影响所有受测 CAD/CAM 材料的显微硬度和光泽度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied optics OPTICS-

CiteScore

3.70

自引率

15.80%

发文量

2081

审稿时长

3 months

期刊介绍： A highly regarded, premium quality must read for everyone in the optics field that offers applications-centered research in optics, photonics, imaging, and sensing. Topics germane to the journal include optical technology, lasers, photonics, environmental optics, and information processing.