TY - JOUR
T1 - The need for polishing and occlusal adjustment of Zirconia prostheses for wear on antagonist teeth
AU - Tachibana, Keishu
AU - Atsuta, Ikiru
AU - Tsukiyama, Yoshihiro
AU - Kuwatsuru, Rika
AU - Morita, Takehiro
AU - Yoshimatsu, Hiroya
AU - Matsushita, Yasuyuki
AU - Narimatsu, Ikue
AU - Ayukawa, Yasunori
AU - Sawae, Yoshinori
AU - Koyano, Kiyoshi
N1 - Funding Information:
This study was supported by a Grant-in-Aid for scientific research from the Japan Society for the Promotion of Science (No. 15K11163) to Y. T. We also thank Helen Jeays, BDSc AE, from Edanz Group (https://en-author-services.edanzgroup.com/ac) for editing a draft of this manuscript.
Publisher Copyright:
© 2021, Japanese Society for Dental Materials and Devices. All rights reserved.
PY - 2021
Y1 - 2021
N2 - The attrition of enamel when opposed by ceramics is of great concern. The purpose of this study was to evaluate enamel wear against high translucent zirconia Zr, lithium disilicate LD, gold Au, and enamel E with different surface and contact conditions. The materials were divided into two groups: Polished and ground n=8 each. Two-body wear tests were performed against human enamel with vertical and horizontal, horizontal, and vertical repetitive movements as experiments 1 to 3 respectively. The surface roughness of all materials except Zr changed throughout the experiments. In experiment 1, Zr and Au showed less antagonist wear when polished than when ground. In experiment 2, polished groups showed less antagonist wear than ground groups in all materials. In experiment 3, Zr and LD exerted greater antagonist wear than E, regardless of Ra. These findings confirm the importance of polishing and occlusal adjustment of zirconia.
AB - The attrition of enamel when opposed by ceramics is of great concern. The purpose of this study was to evaluate enamel wear against high translucent zirconia Zr, lithium disilicate LD, gold Au, and enamel E with different surface and contact conditions. The materials were divided into two groups: Polished and ground n=8 each. Two-body wear tests were performed against human enamel with vertical and horizontal, horizontal, and vertical repetitive movements as experiments 1 to 3 respectively. The surface roughness of all materials except Zr changed throughout the experiments. In experiment 1, Zr and Au showed less antagonist wear when polished than when ground. In experiment 2, polished groups showed less antagonist wear than ground groups in all materials. In experiment 3, Zr and LD exerted greater antagonist wear than E, regardless of Ra. These findings confirm the importance of polishing and occlusal adjustment of zirconia.
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U2 - 10.4012/dmj.2020-190
DO - 10.4012/dmj.2020-190
M3 - Article
C2 - 33456027
AN - SCOPUS:85107319129
VL - 40
SP - 650
EP - 656
JO - Dental Materials Journal
JF - Dental Materials Journal
SN - 0287-4547
IS - 3
ER -