Outcomes of surveyed monolithic CAD/CAM zirconia crowns for removable partial denture abutments: A 7-year clinical study.

IF 3.2 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Journal of prosthodontic research Pub Date : 2025-01-15 DOI:10.2186/jpr.JPR_D_24_00183

Ahmed M Aziz, Hiba Alshaibah, Adam Bin Husein

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Abstract

Purpose: This retrospective clinical study aimed to evaluate the clinical outcomes of surveyed monolithic computer-aided design and computer-aided manufacturing (CAD/CAM) zirconia crowns for abutment teeth in removable partial dentures (RPDs).

Methods: Patients who received monolithic surveyed zirconia crowns were clinically examined. The crowns were examined according to the modified United States Public Health Service criteria, and Kaplan-Meier survival was determined. The effect of different variables on the survival and success rates was assessed using Cox regression analysis (α = 0.05).

Results: A total of 297 crowns of 275 patients were evaluated over a mean period of 7 years. The cumulative survival and success rates were 95.6% and 91.2%, respectively. Complications were in the form of secondary caries (n=12), minor chipping (n=9), and debonding (n=5). A higher number of failures was observed in the mandibular molars (P < 0.05).

Conclusions: Surveyed monolithic zirconia crowns demonstrated high survival after 7 years of service. Monolithic zirconia is an excellent alternative to metal ceramic crowns for RPD abutments.

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整体CAD/CAM氧化锆冠用于可摘局部义齿基台的7年临床研究。

目的：本回顾性临床研究旨在评价整体计算机辅助设计和计算机辅助制造（CAD/CAM）氧化锆冠用于可摘局部义齿基牙的临床效果。方法：对采用整体测量式氧化锆冠的患者进行临床检查。根据修改后的美国公共卫生服务标准检查牙冠，并确定Kaplan-Meier生存期。采用Cox回归分析评价不同变量对生存率和成功率的影响（α = 0.05）。结果：275名患者共297个冠被评估，平均时间为7年。累计生存率为95.6%，成功率为91.2%。并发症包括继发性龋齿（n=12）、轻微龋裂（n=9）和脱粘（n=5）。下颌磨牙失败率较高（P < 0.05）。结论：经调查的单片氧化锆冠在使用7年后具有较高的存活率。单片氧化锆是一种很好的替代金属陶瓷冠的RPD基台。

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 prosthodontic research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

6.90

自引率

11.10%

发文量

161

期刊介绍： Journal of Prosthodontic Research is published 4 times annually, in January, April, July, and October, under supervision by the Editorial Board of Japan Prosthodontic Society, which selects all materials submitted for publication. Journal of Prosthodontic Research originated as an official journal of Japan Prosthodontic Society. It has recently developed a long-range plan to become the most prestigious Asian journal of dental research regarding all aspects of oral and occlusal rehabilitation, fixed/removable prosthodontics, oral implantology and applied oral biology and physiology. The Journal will cover all diagnostic and clinical management aspects necessary to reestablish subjective and objective harmonious oral aesthetics and function. The most-targeted topics: 1) Clinical Epidemiology and Prosthodontics 2) Fixed/Removable Prosthodontics 3) Oral Implantology 4) Prosthodontics-Related Biosciences (Regenerative Medicine, Bone Biology, Mechanobiology, Microbiology/Immunology) 5) Oral Physiology and Biomechanics (Masticating and Swallowing Function, Parafunction, e.g., bruxism) 6) Orofacial Pain and Temporomandibular Disorders (TMDs) 7) Adhesive Dentistry / Dental Materials / Aesthetic Dentistry 8) Maxillofacial Prosthodontics and Dysphagia Rehabilitation 9) Digital Dentistry Prosthodontic treatment may become necessary as a result of developmental or acquired disturbances in the orofacial region, of orofacial trauma, or of a variety of dental and oral diseases and orofacial pain conditions. Reviews, Original articles, technical procedure and case reports can be submitted. Letters to the Editor commenting on papers or any aspect of Journal of Prosthodontic Research are welcomed.