Changes of surface characteristics after toothbrush abrasion on light-cured shade-characterizing agents for CAD-CAM composite-resin block
Source abstract
Abstract
Light-cured shade-characterizing agents are used for composite materials to mimic natural tooth color. Tooth-brushing abrasion tests were conducted to investigate the durability of the agents. Computer-aided design/computer-aided manufacturing (CAD-CAM) composite-resin blocks were used, and the surface was polished with #2000 SiC paper before the agent application. Four different shade agents were applied to the blocks, treated the surface no/with sandblasting. Tooth-brush abrasion tests were carried out for 20,000 cycles at a frequency of 2 Hz with 2.0 N of brushing force. Surface roughness, gloss, contact angle, and color differences were obtained. The number of repetitions was set to ten. It was found that a significant increase in surface roughness and decreases in gloss and water contact angle by tooth brushing tests were clarified. However, the color change by brushing was not significantly large. The color difference before and after applying agents and surface roughness differed in the shade differences in the agents.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Dental materials and restorations · Dental Erosion and Treatment · Dental Implant Techniques and Outcomes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Dental Materials Science, School of Life Dentistry at Tokyo, The Nippon Dental University
Division of Fixed Prosthodontics, Department of Restorative & Biomaterials Sciences, Meikai University School of Dentistry
Department of Fixed Prosthodontics, Nihon University School of Dentistry
Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University
References (38)
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