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经抛光上釉后对整体氧化锆和分层氧化锆的釉质磨损进行比较评估：一项研究。

Comparative evaluation of enamel wear against monolithic zirconia and layered zirconia after polishing and glazing: An study.

机构信息

Department of Prosthodontics, Sri Sai College of Dental Surgery, Vikarabad, Telangana, India.

出版信息

J Indian Prosthodont Soc. 2022 Oct-Dec;22(4):354-360. doi: 10.4103/jips.jips_503_21.

DOI:10.4103/jips.jips_503_21
PMID:36511069
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9709870/
Abstract

AIM

The aim of this study was to compare the wear behavior of human tooth enamel opposing monolithic zirconia and layered zirconia after glazing and polishing by a two-body wear mechanism using a wear simulator.

SETTINGS AND DESIGN

This In-vitro study was done in Department of Prosthodontics, Sri Sai College of Dental Research, Vikarabad.

MATERIALS AND METHODS

Zirconia specimens were divided into four groups (n = 15), Group monolithic glazed zirconia (MG), Group monolithic polished zirconia (MP), Group zirconia layered with E. max ceram and glazed (LG), Group zirconia layered with E. max ceram and polished without glaze (LP). Sixty human premolar teeth were subjected to wear test against the zirconia specimens using a Pin on Disc wear tester under a constant load of 5 kg (49 N) at 30 rpm for 10,000 cycles. The loss of enamel was recorded before and after the wear test and mean loss of height of tooth enamel after 10,000 cycles of wear was measured with a profile projector. The surface characteristics of all the four group zirconia specimens were evaluated qualitatively with scanning electron microscope.

STATISTICAL ANALYSIS USED

One way ANOVA, Tukey Post hoc.

RESULTS

One-way analysis of variance test revealed that the mean loss of enamel of four groups was statistically different with P < 0.001. A further Tukey post hoc test revealed that the MP group had lesser mean scores than group LP, MG, and LG.

CONCLUSION

It was concluded that MP caused less wear to opposing natural teeth, and polished surfaces of both monolithic and layered zirconia showed less tooth wear compared to glazed surfaces of monolithic and layered zirconia.

摘要

目的

本研究旨在通过磨损模拟器的二体磨损机制，比较上釉和抛光后的整体氧化锆和分层氧化锆与人牙釉质的磨损行为。

设置和设计

本体外研究在维卡尔巴德的 Sri Sai 牙科研究学院的修复科进行。

材料和方法

将氧化锆样本分为四组（n = 15），组 1 为整体上釉氧化锆（MG），组 2 为整体抛光氧化锆（MP），组 3 为上釉分层氧化锆（LG），组 4 为不上釉分层氧化锆（LP）。将 60 个人的前磨牙与氧化锆样本在恒定负载为 5 公斤（49 N）、转速为 30 rpm 的条件下使用针盘磨损试验机进行磨损测试，持续 10,000 个循环。在磨损测试前后记录牙釉质的损耗，并使用轮廓投影仪测量 10,000 个循环磨损后牙釉质的平均高度损耗。使用扫描电子显微镜对所有四组氧化锆样本的表面特性进行定性评估。

统计学分析

单因素方差分析，Tukey 事后检验。

结果

单因素方差分析检验显示，四组的牙釉质平均损耗具有统计学差异（P < 0.001）。进一步的 Tukey 事后检验显示，MP 组的平均值得分低于 LP、MG 和 LG 组。

结论

MP 对相对天然牙齿的磨损较小，且整体和分层氧化锆的抛光表面比整体和分层氧化锆的上釉表面显示出更少的牙齿磨损。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/40933b20f668/JIPS-22-354-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/7c5231e62455/JIPS-22-354-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/d6108e2dbd20/JIPS-22-354-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/1769b2dd3821/JIPS-22-354-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/22c079d183e0/JIPS-22-354-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/ea5ee46dcaf3/JIPS-22-354-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/82f8a10b77bc/JIPS-22-354-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/98aa80d58601/JIPS-22-354-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/21dc063017c7/JIPS-22-354-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/9e141a60032e/JIPS-22-354-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/40933b20f668/JIPS-22-354-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/7c5231e62455/JIPS-22-354-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/d6108e2dbd20/JIPS-22-354-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/1769b2dd3821/JIPS-22-354-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/22c079d183e0/JIPS-22-354-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/ea5ee46dcaf3/JIPS-22-354-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/82f8a10b77bc/JIPS-22-354-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/98aa80d58601/JIPS-22-354-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/21dc063017c7/JIPS-22-354-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/9e141a60032e/JIPS-22-354-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80cd/9709870/40933b20f668/JIPS-22-354-g010.jpg

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