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- Title
Comparison and evaluation of fracture toughness of milled, 3D-Printed, and conventional polymethyl methacrylate: An In Vitro study.
- Authors
Adsare, Prashanti; Patil, Amit; Raj, Pooja; Puranik, Shivakumar; Menga, Rajesh; Rajendra, Koineni
- Abstract
Introduction: Dentures aim to replicate natural dentition's esthetics and functions as much as possible. With computer-aided design/computer-aided manufacturing (CAD/CAM) technology, dentistry had a new renaissance with workflow and materials. Aim: The aim is to compare the fracture toughness of the milled, 3D-printed, and conventional polymethyl methacrylate (PMMA) to those processed conventionally. Materials and Methods: 10 CAD MILLED PMMA BLOCKS, 10 3D PRINTED PMMA BLOCKS, and 10 CONVENTIONAL (HEAT CURE) PMMA BLOCKS. Results: A significant difference was seen in the mean flexural module when compared among three study groups as P < 0.05. It was found to be maximum in CAD/CAM PMMA, followed by conventional heat cure and 3D-printed PMMA. Conclusion: Formlabs and Dentca (3D-printed) were significantly weaker in fracture toughness compared to Leucitone 199 (conventional) (P < 0.05). Leucitone 199 (conventional) was significantly weaker in fracture toughness compared to Avadent (CAD CAM) (P < 0.05).
- Subjects
FRACTURE toughness; CAD/CAM systems; METHACRYLATES; DENTURES
- Publication
Journal of Pharmacy & Bioallied Sciences, 2024, Vol 16, p484
- ISSN
0976-4879
- Publication type
Article
- DOI
10.4103/jpbs.jpbs_819_23