Citation Information :
Harshan P, Kalambettu A. Marginal Fit of Milled and Layered Ceramics Tooth-supported Fixed Partial Denture: A Systematic Review. World J Dent 2024; 15 (5):442-450.
Aim: Systematic analysis of in vivo studies for clinical evaluation of marginal fit of milled and layered ceramic fixed partial dentures (FPDs) was considered for review.
Materials and methods: Electronic databases were searched on clinical marginal fit of milled and layered ceramic crowns and FPDs—PubMed, Ovid Medline, Elsevier ScienceDirect, Wiley Online Library, Cochrane Library, Lilacs, and Google Scholar from January 1990 to December 2021, and a total of 660 articles were obtained, among which six of them were included in this study. In addition, a hand search was performed through standard dental journals using the keywords milled and layered ceramics and marginal adaptation and fracture resistance. All included studies evaluated the clinical marginal and internal adaptation of ceramic crowns fabricated with computer-aided design/computer-aided manufacturing (CAD/CAM) milling and conventional casting.
Results: Six studies were included in the systematic review, all of which were clinical trials. Among them, five articles showed that milled and layered ceramics had similar marginal fit, good success rates, and a satisfactory clinical outcome, while in one article, layered ceramics showed significantly better marginal and internal adaptation.
Conclusion: Marginal fit is an important criterion that determines the quality and survival rate of the prosthesis. On reviewing the marginal fit of the milled and layered ceramic, it was found that they showed similar internal and external marginal adaptation, along with good short-term survival rates, making them suitable for clinical practice.
Clinical significance: The quality of any fixed dental prosthesis depends upon the marginal fit and comfort of the prosthesis. The milled and layered ceramics showed similar marginal adaptation. Hence, both restorations can be recommended for fixed partial denture.
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