Comparison of Flexural Strength of Different CAD/CAM PMMA-Based Polymers.
Prepolymerized polymers
poly(methyl methacrylate)
three-point bending
Journal
Journal of prosthodontics : official journal of the American College of Prosthodontists
ISSN: 1532-849X
Titre abrégé: J Prosthodont
Pays: United States
ID NLM: 9301275
Informations de publication
Date de publication:
Feb 2019
Feb 2019
Historique:
accepted:
27
10
2017
pubmed:
30
1
2018
medline:
30
7
2019
entrez:
30
1
2018
Statut:
ppublish
Résumé
To compare the flexural strength of different computer-aided design/computer-aided manufacturing (CAD/CAM) poly(methyl methacrylate)-based (PMMA) polymers and conventional interim resin materials after thermocycling. Rectangular-shaped specimens (n = 15, for each material) (25 × 2 × 2 mm Flexural strength values ranged between 66.1 ± 13.1 and 131.9 ± 19.8 MPa. There were significant differences among the flexural strengths of tested materials, except for between T and P CAD/CAM PMMA-based polymers (p > 0.05). CAD/CAM PMMA-based polymer M had the highest flexural strength and conventional PMMA had the lowest (p < 0.05). CAD/CAM PMMA-based T and P polymers had significantly higher flexural strength than the bis-acrylate composite resin (p < 0.05), and conventional PMMA (p < 0.0001), and significantly lower flexural strength compared to CAD/CAM PMMA-based M (p < 0.05). The flexural strength of CAD/CAM PMMA-based polymers was greater than the flexural strength of bis-acrylate composite resin, which had a greater flexural strength compared to conventional PMMA resin.
Substances chimiques
Composite Resins
0
Dental Materials
0
Polymers
0
Polymethyl Methacrylate
9011-14-7
Types de publication
Comparative Study
Journal Article
Langues
eng
Pagination
e491-e495Informations de copyright
© 2018 by the American College of Prosthodontists.