Abstract
Objective Analyzing and comparing the fit and accuracy of removable partial denture (RPDs) frameworks fabricated with CAD/CAM and rapid prototyping methods with conventional techniques. Materials and Methods The present systematic review was carried out according to PRISMA guidelines. The search was carried out on PubMed/MEDLINE, Cochrane collaboration, Science direct, and Scopus scientific engines using selected MeSH keywords. The articles fulfilling the predefined selection criteria based on the fit and accuracy of removable partial denture (RPD) frameworks constructed from digital workflow (CAD/CAM; rapid prototyping) and conventional techniques were included. Results Nine full-text articles comprising 6 in vitro and 3 in vivo studies were included in this review. The digital RPDs were fabricated in all articles by CAD/CAM selective laser sintering and selective laser melting techniques. The articles that have used CAD/CAM and rapid prototyping technique demonstrated better fit and accuracy as compared to the RPDs fabricated through conventional techniques. The least gaps between the framework and cast (41.677 ± 15.546 μm) were found in RPDs constructed through digital CAD/CAM systems. Conclusion A better accuracy was achieved using CAD/CAM and rapid prototyping techniques. The RPD frameworks fabricated by CAD/CAM and rapid prototyping techniques had clinically acceptable fit, superior precision, and better accuracy than conventionally fabricated RPD frameworks.
Highlights
The accurate fit of removable partial denture (RPD) is a key component of the removable prosthodontics
The results showed that the digitally processed RPDs were more retentive as it was associated with less human intervention
The results of this review described that the fit accuracy of removable partial denture frameworks fabricated by digital (CAD/CAM and rapid prototyping (RP)) techniques is superior as compared to the frameworks fabricated by conventional techniques
Summary
The accurate fit of removable partial denture (RPD) is a key component of the removable prosthodontics. Fabricated RPD can be time consuming, and their misfit has been identified as one of the chief complaints of RPD wearers. Various other methods are developed and employed for the fabrication of RPDs, which are less extensive, and work effortlessly with better fit and accuracy [1]. Records identified through initial search (n = 518). Duplicates removed: (n = 476) Screening Eligibility. Full text studies assessed for eligibility (n =20). Studies included in the systematic review (n = 09)
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