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聚醚醚酮和氧化锆制作的桩核边缘适合性及内部适合性的比较——一项研究

Comparison of Marginal Fit and Internal Adaptation of Copings Fabricated with Polyetheretherketone and Zirconia - An Study.

作者信息

Amalorpavam V, Sreelal T, Chandramohan Giri, Jithin G N

机构信息

Assistant Professor, Department of Prosthodontics, Rajas Dental College and Hospital, Kavalkinaru, Tirunelveli, India.

Former Professor and Head of the Department, Department of Prosthodontics, Sree Mookambika Institute of Dental Sciences, Kulasekaram, Kanya Kumari, India.

出版信息

J Pharm Bioallied Sci. 2021 Nov;13(Suppl 2):S1199-S1205. doi: 10.4103/jpbs.jpbs_328_21. Epub 2021 Nov 10.

DOI:10.4103/jpbs.jpbs_328_21
PMID:35017956
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8686888/
Abstract

CONTEXT

Purpose: The aim of this study was to evaluate and compare the Marginal fit and Internal adaptation of copings fabricated with polyetheretherketone (PEEK) and Zirconia luted with resin cements.

MATERIALS AND METHODS

Maxillary first premolar was prepared to receive all ceramic restoration. It was duplicated using addition silicon impression material for fabricating Cobalt-Chromium metal die, which is used as a master die. Using the master die, 30 heat cure acrylic samples were fabricated for the heat cure acrylic tooth models on which 15 PEEK and 15 zirconia copings were made. Self-adhesive resin cement is used for luting and 30 copings were luted. After 24 h, luted copings were having a disc of thickness 0.01 mm cutting at high speed using a Tooth cutting lathe for all the 30 samples. Field Scanning Electron Microscopic study analysis for evaluating marginal fit and internal adaptation of two groups were observed. The values were then analyzed using one-way ANOVA (post hoc) followed by Dunnet -test.

RESULTS

Among those two groups, PEEK copings group materials showed the lowest mean value of (30.3 ± 5.1) for marginal gap, (29.1 ± 5.8) for internal gap whereas the zirconia copings group showed a mean value of (50.26 ± 16.02) and (32.8 ± 5.2) respectively.

CONCLUSION

Among these two groups, comparatively less marginal fit and internal adaptation is seen in zirconia copings when compared to the PEEK copings. While the marginal fit and internal adaptation of both PEEK and zirconia copings were in the acceptable clinical range.

摘要

背景

目的：本研究旨在评估和比较用聚醚醚酮（PEEK）制作的冠套与用树脂水门汀粘结的氧化锆冠套的边缘适合性和内部适应性。

材料与方法

制备上颌第一前磨牙以进行全瓷修复。使用加成型硅橡胶印模材料复制该牙，制作钴铬金属代型作为母代型。利用母代型制作30个热固化丙烯酸树脂样本，用于制作热固化丙烯酸树脂牙模型，在该模型上制作15个PEEK冠套和15个氧化锆冠套。使用自粘结树脂水门汀进行粘结，共粘结30个冠套。24小时后，对所有30个样本使用牙体切割车床以高速切割厚度为0.01mm的圆盘，对粘结后的冠套进行场发射扫描电子显微镜研究分析，以评估两组的边缘适合性和内部适应性。然后使用单因素方差分析（事后检验），随后进行Dunnet检验对数据进行分析。

结果

在这两组中，PEEK冠套组材料的边缘间隙平均值最低，为（30.3±5.1），内部间隙平均值为（29.1±5.8），而氧化锆冠套组的平均值分别为（50.26±16.02）和（32.8±5.2）。

结论

在这两组中，与PEEK冠套相比，氧化锆冠套的边缘适合性和内部适应性相对较差。而PEEK和氧化锆冠套的边缘适合性和内部适应性均在可接受的临床范围内。

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