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由相对的全瓷或不锈钢冠导致的乳牙磨损。

Wear of primary teeth caused by opposed all-ceramic or stainless steel crowns.

作者信息

Choi Jae-Won, Bae Ik-Hyun, Noh Tae-Hwan, Ju Sung-Won, Lee Tae-Kyoung, Ahn Jin-Soo, Jeong Tae-Sung, Huh Jung-Bo

机构信息

Department of Prosthodontics, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea.

Woorimi Dental Clinic, Busan, Republic of Korea.; Department of Pediatric Dentistry, Dental Research Institute, School of Dentistry, Pusan National University, Yangsan, Republic of Korea.

出版信息

J Adv Prosthodont. 2016 Feb;8(1):43-52. doi: 10.4047/jap.2016.8.1.43. Epub 2016 Feb 23.

DOI:10.4047/jap.2016.8.1.43
PMID:26949487
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4769889/
Abstract

PURPOSE

This study was conducted to evaluate the effects of full-coverage all-ceramic zirconia, lithium disilicate glass-ceramic, leucite glass-ceramic, or stainless steel crowns on antagonistic primary tooth wear.

MATERIALS AND METHODS

There were four study groups: the stainless steel (Steel) group, the leucite glass-ceramic (Leucite) group, the lithium disilicate glass-ceramic (Lithium) group, and the monolithic zirconia (Zirconia) group. Ten flat crown specimens were prepared per group; opposing teeth were prepared using primary canines. A wear test was conducted over 100,000 chewing cycles using a dual-axis chewing simulator and a 50 N masticating force, and wear losses of antagonistic teeth and restorative materials were calculated using a three-dimensional profiling system and an electronic scale, respectively. Statistical significance was determined using One-way ANOVA and Tukey's test (P<.05).

RESULTS

The Leucite group (2.670±1.471 mm(3)) showed the greatest amount of antagonist tooth wear, followed by in decreasing order by the Lithium (2.042±0.696 mm(3)), Zirconia (1.426±0.477 mm(3)), and Steel groups (0.397±0.192 mm(3)). Mean volume losses in the Leucite and Lithium groups were significantly greater than in the Steel group (P<.05). No significant difference was observed between mean volume losses in the Zirconia and Steel groups (P>.05).

CONCLUSION

Leucite glass-ceramic and lithium disilicate glass-ceramic cause more primary tooth wear than stainless steel or zirconia.

摘要

目的

本研究旨在评估全瓷氧化锆、二硅酸锂微晶玻璃、白榴石微晶玻璃或不锈钢全冠对抗牙乳牙磨损的影响。

材料与方法

本研究分为四组：不锈钢（Steel）组、白榴石微晶玻璃（Leucite）组、二硅酸锂微晶玻璃（Lithium）组和整体式氧化锆（Zirconia）组。每组制备10个扁平冠标本；使用乳尖牙制备对颌牙。使用双轴咀嚼模拟器和50 N的咀嚼力进行100,000次咀嚼循环的磨损试验，并分别使用三维轮廓测量系统和电子天平计算对颌牙和修复材料的磨损损失。采用单因素方差分析和Tukey检验确定统计学意义（P<0.05）。

结果

白榴石组（2.670±1.471 mm³）的对颌牙磨损量最大，其次依次为二硅酸锂组（2.042±0.696 mm³）、氧化锆组（1.426±0.477 mm³）和不锈钢组（0.397±0.192 mm³）。白榴石组和二硅酸锂组的平均体积损失显著大于不锈钢组（P<0.05）。氧化锆组和不锈钢组的平均体积损失之间未观察到显著差异（P>0.05）。

结论

白榴石微晶玻璃和二硅酸锂微晶玻璃比不锈钢或氧化锆导致更多的乳牙磨损。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/e6e549072f45/jap-8-43-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/c5938d78c51a/jap-8-43-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/9a0bf76434cf/jap-8-43-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/a1f5e0523332/jap-8-43-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/df35954ab8ac/jap-8-43-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/cd592d91390e/jap-8-43-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/3f6db936b62d/jap-8-43-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/e6e549072f45/jap-8-43-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/c5938d78c51a/jap-8-43-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/9a0bf76434cf/jap-8-43-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/a1f5e0523332/jap-8-43-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/df35954ab8ac/jap-8-43-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/cd592d91390e/jap-8-43-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/3f6db936b62d/jap-8-43-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6da0/4769889/e6e549072f45/jap-8-43-g007.jpg

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