Effectiveness Of Cad Cam Milled Vs Dmls Titanium Framework for Hybrid Denture Prosthesis - A Systematic Review

Abstract

Objectives: The main objective of this study is to critically review articles that have used printed and milled CAD CAM designed metal as a framework for hybrid denture and evaluate its clinical effectiveness.Search Strategy: An electronic search was performed in PubMed, Google scholar and Cochrane Library until December 2021. The assessment of the articles was done using selection criteria.Selection Criteria : All prospective/retrospective studies on conventional, milled and printed metal frameworks for implant supported hybrid dentures were included in this systematic review.Case series, case reports, conference paper, animal studies were excluded from this review.Data Collection: We used standard methodological procedures to select studies and collect the data. The risk of bias was evaluated and findings were synthesised.Results: Out of the 22 articles selected 5 were excluded based on title and abstract. Out of the remaining 17 studies, 10 were excluded based on inclusion and exclusion criteria, and finally 7 were selected on the basis of core data. Based on the observation from these 7 studies we were able to substantiate the difference between the conventional, milled and printed metal frameworks for hybrid denture prosthesis.Conclusion: DMLS as well as CNC milling are viable and better alternatives for production of titanium bar for implant supported hybriddenture frameworks, when compared to the conventional production methods. DMLS and CNC milling both have a few pros and cons over each other. While the accuracy of CNC milling is greater, its fabrications costs make it difficult to bring into daily practice. DMLS is cheaper, faster and although less accurate, clinically acceptable. Thus further research in this topic is imperative to best understand its potential.