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Comparison of Clinical Efficacy of Cad Cam Endocrowns Made of Feldspathic Ceramic, Zirconia Lithium Silicate, and Lithium Disilicate: A Two-Year Mixed Cohort Study Publisher Pubmed



Jalali S1 ; Asgari N2 ; Pirooz P3 ; Younespour S4 ; Atri F5
Authors
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Authors Affiliations
  1. 1. Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
  2. 2. Department of Prosthodontics, School of Dentistry, Qazvin university of Medical Sciences, Qazvin, Iran
  3. 3. School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Department of Prosthodontics, School of Dentistry, Dentistry Research Institute, Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Dentistry Published:2024


Abstract

Objective: Endocrowns can be fabricated from various materials as a treatment option for endodontically treated teeth. This mixed cohort study aimed to demonstrate the clinical efficacy of Endocrowns made of feldspathic, zirconia lithium silicate, and lithium disilicate ceramics using a chairside CAD/CAM system. Methods: The present study compared the clinical outcomes of 141 Endocrown restorations in posterior teeth of 85 patients in a two-year follow-up. The efficacy of restorations was evaluated in three aspects: esthetics, biological response, and function, with the aid of the FDI guideline, and presented as descriptive analyses. Additionally, the data were analyzed using Chi-square and Spearman correlation tests. The significance level was set at p = 0.05. Results: The study findings revealed that the type of restorations (feldspathic ceramic, zirconia lithium silicate, and lithium disilicate) (p > 0.05) and underlying teeth (molars and premolars) (p > 0.05) play no part in restorations’ failure. Caries' recurrence is primarily responsible for the failure of the endocrowns. Secondary caries and radiolucency were observed in four teeth (2.83 %). The clinical efficacy of 126 restorations (89.36 %) fell into the category of “clinically excellent” and “clinically good.” Ten restorations (7.09 %) were classified as “clinically sufficient/satisfactory,” and only five restorations (3.54 %) needed replacement due to having “clinically unsatisfactory” and “clinically poor” quality. Conclusions: Endocrowns showed a high success rate and durability in the short term, therefore can be considered a safe choice for restoring endodontically treated teeth. It is worth noting that caries were the most common reason for the failure of the restorations. Clinical significance: Endocrowns made of different ceramics have been proven reliable restorations for endodontically treated molars and premolars. © 2024 Elsevier Ltd
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