CAD/CAM milled complete removable dental prostheses: An in vitro evaluation of biocompatibility, mechanical properties, and surface roughness.

Srinivasan, Murali; Gjengedal, Harald; Cattani-Lorente, Maria; Moussa, Mira; Durual, Stéphane; Schimmel, Martin; Müller, Frauke (2018). CAD/CAM milled complete removable dental prostheses: An in vitro evaluation of biocompatibility, mechanical properties, and surface roughness. Dental materials journal, 37(4), pp. 526-533. Japanese Society for Dental Materials and Devices 10.4012/dmj.2017-207

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This study compared the biocompatibility, mechanical properties, and surface roughness of a pre-polymerized polymethyl methacrylate (PMMA) resin for CAD/CAM complete removable dental prostheses (CRDPs) and a traditional heat-polymerized PMMA resin. Two groups of resin substrates [Control (RC): conventional PMMA; Test (RA): CAD/CAM PMMA] were fabricated. Human primary osteoblasts and mouse embryonic-fibroblasts were cultured for biocompatibility assays. Mechanical properties and surface roughness were compared. ANOVA revealed no difference between the resin groups in the biocompatibility assays. RA demonstrated a higher elastic modulus (p=0.002), young's modulus (p=0.002), plastic energy (p=0.002), ultimate strength (p=0.0004), yield point (p=0.016), strain at yield point (p=0.037), and toughness (p<0.0001); while RC displayed a higher elastic energy (p<0.0001). Laser profilometry concluded a rougher surface profile (p<0.0001) for RA. This study concluded that the tested CAD/CAM resin was equally biocompatible and presented with improved mechanical properties than the traditional heat-polymerized PMMA resin used in the fabrication of CRDPs.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology

UniBE Contributor:

Schimmel, Martin

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0287-4547

Publisher:

Japanese Society for Dental Materials and Devices

Language:

English

Submitter:

Vanda Kummer

Date Deposited:

01 Apr 2019 11:57

Last Modified:

05 Dec 2022 15:25

Publisher DOI:

10.4012/dmj.2017-207

PubMed ID:

29515054

Uncontrolled Keywords:

CAD/CAM CAD/CAM milled complete removable dental prostheses Complete dentures Laser profilometry

BORIS DOI:

10.7892/boris.125718

URI:

https://boris.unibe.ch/id/eprint/125718

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