A comparative evaluation of prosthetic and clinical outcomes influenced by two digitally fabricated extracoronal restorations: An onlay and a full crown: A prospective, cross-arch randomized study.

IF 1 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Sarojini Biswal, Bhupender Kumar Yadav, Abhishek Nagpal, Omkar Krishna Shetty, Pankaj Ritwal, Shalini Kapoor
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引用次数: 0

Abstract

Aim: The aim of the study was to investigate and compare the prosthetic parameters, clinical indices, and survival rates of two digitally fabricated extracoronal restorations, namely an onlay and a full crown, at baseline, 1 year, and 2 years.

Settings and design: This was a prospective clinical study conducted on endodontically treated posterior teeth.

Materials and methods: Endodontically treated posterior teeth (n = 15) present bilaterally in the mandibular arch were selected. Digitally fabricated lithium disilicate onlay and crown were placed on either side of the same arch after randomization. Clinical parameters and prosthetic characteristics (as per the modified United States Public Health Service criteria) were evaluated at baseline, 1-year, and 2-year follow-ups.

Statistical analysis used: Data were descriptively examined. The results were evaluated using the Chi-square test and ANOVA. Statistical significance was determined at P < 0.05.

Results: Full crowns showed a 100% survival rate, while onlays had an 83.3% survival rate, with a significant difference (P = 0.030, 95% confidence interval: 0.01-0.12). Onlays exhibited significantly better periodontal outcomes, including lower bleeding on probing (P = 0.000), plaque index (P = 0.001), and probing pocket depth (P = 0.000) at 1 and 2 years. Marginal discoloration (20%) and marginal integrity loss (13.3%) were observed in onlays, with significant differences (P = 0.001). Both groups showed no fractures, secondary caries, or significant surface texture changes, and 100% patient satisfaction throughout.

Conclusion: In this clinical trial comparing lithium disilicate onlays and crowns for restoring posterior teeth following endodontic treatment, both options demonstrated satisfactory prosthetic parameters during subsequent follow-ups. However, marginal integrity and discoloration were more prevalent in the onlay group. Periodontal examination revealed that onlays exhibited superior periodontal outcomes compared to crowns, with full crowns showing greater periodontal damage at 1-year and 2-year follow-ups.

两种数字制作的冠外修复体:嵌体和全冠:一项前瞻性、交叉弓随机研究,对修复体和临床结果的影响进行了比较评估。
目的:本研究的目的是调查和比较两种数字制作的冠外修复体(即嵌体和全冠)在基线、1年和2年的假体参数、临床指标和存活率。背景和设计:这是一项对经牙髓治疗后牙进行的前瞻性临床研究。材料和方法:选择经根管治疗的双侧下颌弓后牙(n = 15)。随机化后,将数字制作的二硅酸锂嵌体和冠放置在同一弓的两侧。临床参数和假体特征(根据修改后的美国公共卫生服务标准)在基线、1年和2年随访时进行评估。采用统计分析:对数据进行描述性检验。采用卡方检验和方差分析对结果进行评价。差异有统计学意义,P < 0.05。结果:全冠成活率为100%,单纯冠成活率为83.3%,差异有统计学意义(P = 0.030, 95%可信区间为0.01 ~ 0.12)。在1年和2年期间,仅贴牙者的牙周预后明显较好,包括探诊出血(P = 0.000)、菌斑指数(P = 0.001)和探诊袋深度(P = 0.000)较低。单纯牙体边缘变色(20%)和边缘完整性丧失(13.3%),差异有统计学意义(P = 0.001)。两组均无骨折、继发性龋齿或明显的表面纹理变化,患者满意率为100%。结论:在这项临床试验中,比较了二硅酸锂嵌体和冠体在根管治疗后修复后牙的效果,在随后的随访中,这两种选择都显示出令人满意的修复参数。然而,边缘完整和变色在全脂组中更为普遍。牙周检查显示,与全冠相比,全冠在1年和2年的随访中显示出更大的牙周损伤。
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
The Journal of Indian Prosthodontic Society
The Journal of Indian Prosthodontic Society DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
2.20
自引率
8.30%
发文量
26
审稿时长
20 weeks
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