Wear of Enamel Antagonist to Polished vs Glazed Zirconia-reinforced Lithium Silicate Crowns (Randomized Clinical Trial).

Q3 Dentistry

Journal of Contemporary Dental Practice Pub Date : 2025-01-01 DOI:10.5005/jp-journals-10024-3804

Ibrahim S Rady, Eman M Anwar, Amira M Elsharkawy, Karim A Rabie

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Abstract

Aim: The purpose of this clinical study was to assess the wear on opposing enamel caused by two processing methods of ZLS (zirconium-reinforced lithium silicate) VITA SUPRINITY crowns-polished and glaze-fired-when used to restore posterior teeth.

Materials and methods: The study included 26 patients requiring full coverage molar crowns. Participants were divided into two groups based on the type of occlusal surface treatment applied. Group I comprised patients who received polished ZLS crowns, while group II included those treated with glaze-fired ZLS crowns. Following final cementation, intraoral scans were performed at baseline and after 6 months, and wear measurements were analyzed using superimposition software.

Results: After a 6-month follow-up, polished crowns exhibited significantly lower wear compared to glaze-fired crowns for both the restoration (p = 0.013, effect size = 1.344) and the antagonist enamel (p = 0.041, effect size = 1.026).

Conclusion: Within the study's limitations, polished ZLS crowns exhibited minimal wear on opposing teeth, whereas glazed ZLS caused greater wear on both the restoration and antagonist enamel.

Clinical significance: VITA SUPRINITY crowns, particularly when polished with appropriate techniques, offer favorable wear resistance for both the restoration and opposing enamel, along with excellent biocompatibility. How to cite this article: Rady IS, Anwar EM, Elsharkawy AM, et al. Wear of Enamel Antagonist to Polished vs Glazed Zirconia-reinforced Lithium Silicate Crowns (Randomized Clinical Trial). J Contemp Dent Pract 2025;26(1):18-24.

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磨光与釉面氧化锆增强硅酸锂冠的牙釉质拮抗剂磨损（随机临床试验）

目的：研究ZLS（锆增强硅酸锂）VITA suprity冠磨光和釉烧两种处理方法修复后牙时对对牙釉质的磨损。材料和方法：研究纳入26例需要全覆盖磨牙冠的患者。参与者根据所使用的咬合面治疗类型分为两组。第一组采用抛光ZLS冠，第二组采用釉烧ZLS冠。最终骨水泥完成后，在基线和6个月后进行口内扫描，并使用叠加软件分析磨损测量。结果：经过6个月的随访，磨光后的烤瓷牙冠在修复（p = 0.013，效应值= 1.344）和拮抗牙釉质（p = 0.041，效应值= 1.026）方面的磨损均明显低于釉烧烤瓷牙冠。结论：在研究的限制范围内，抛光的ZLS冠对对立牙齿的磨损最小，而釉面ZLS冠对修复牙釉质和拮抗牙釉质的磨损更大。临床意义：VITA SUPRINITY牙冠，特别是用适当的技术抛光后，可以为修复体和对抗牙釉质提供良好的耐磨性，同时具有良好的生物相容性。如何引用本文：Rady IS， Anwar EM， Elsharkawy AM等。磨光与釉面氧化锆增强硅酸锂冠的牙釉质拮抗剂磨损（随机临床试验）现代医疗实践[J]; 2025;26(1):18-24。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Contemporary Dental Practice Dentistry-Dentistry (all)

CiteScore

1.80

自引率

0.00%

发文量

174

期刊介绍： The Journal of Contemporary Dental Practice (JCDP), is a peer-reviewed, open access MEDLINE indexed journal. The journal’s full text is available online at http://www.thejcdp.com. The journal allows free access (open access) to its contents. Articles with clinical relevance will be given preference for publication. The Journal publishes original research papers, review articles, rare and novel case reports, and clinical techniques. Manuscripts are invited from all specialties of dentistry i.e., conservative dentistry and endodontics, dentofacial orthopedics and orthodontics, oral medicine and radiology, oral pathology, oral surgery, orodental diseases, pediatric dentistry, implantology, periodontics, clinical aspects of public health dentistry, and prosthodontics.