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Fracture Resistance Analysis of CAD/CAM Interim Fixed Prosthodontic Materials: PMMA, Graphene, Acetal Resin and Polysulfone

Abad-Coronel, Cristian ; Calle, Carolina ; Abril, Gabriela ; Paltán, César A ; Fajardo, Jorge I

Polymers, 2023-04, Vol.15 (7), p.1761 [Periódico revisado por pares]

Switzerland: MDPI AG

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Título:
Fracture Resistance Analysis of CAD/CAM Interim Fixed Prosthodontic Materials: PMMA, Graphene, Acetal Resin and Polysulfone
Autor: Abad-Coronel, Cristian ; Calle, Carolina ; Abril, Gabriela ; Paltán, César A ; Fajardo, Jorge I
Assuntos: Acetal resins ; acetalic resin ; Biocompatibility ; CAD ; CAD-CAM systems ; CAD-CAM systems industry ; CAD/CAM ; CAM ; Computer aided design ; Computer aided manufacturing ; Computer programs ; Dentistry ; Design ; Fracture toughness ; Graphene ; Graphite ; Impact strength ; Implants, Artificial ; interim restorations ; Mechanical properties ; Milling (machining) ; PMMA ; Polymerization ; Polymers ; Polymethyl methacrylate ; Polymethylmethacrylate ; Polysulfone resins ; polysulfphone ; Prostheses ; Prosthesis ; Resins ; Salicylates ; Software
É parte de: Polymers, 2023-04, Vol.15 (7), p.1761
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: The aim of this study was to evaluate and compare the fracture resistance of temporary restorations made of polymethylmethacrylate (PMMA), graphene-modified PMMA (GRA), acetal resin (AR) and polysulfone (PS) obtained by a subtractive technique (milling) using a computer-aided design and manufacturing (CAD/CAM) system of a three-unit fixed dental prosthesis (FDP). Four groups of ten samples were fabricated for each material. Each specimen was characterized by a compression test on a universal testing machine, all specimens were loaded to fracture and the value in Newtons (N) was recorded by software connected to the testing machine. The fracture mode was evaluated on all samples using a stereomicroscope. There were statistically significant differences ( value < 0.005) between PMMA and the other three materials (PMMA: 1302.71 N; GRA: 1990.02 N; RA: 1796.20 N; PS: 2234.97). PMMA presented a significantly lower value than the other materials, and PS showed the highest value. GRA and RA presented a similar range of values but they were still higher than those of PMMA. GRA, RA and PS are presented as valid options within the range of interim milled restorative materials and as alternatives to PMMA.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Fracture Resistance Analysis of CAD/CAM Interim Fixed Prosthodontic Materials: PMMA, Graphene, Acetal Resin and Polysulfone

Abad-Coronel, Cristian ; Calle, Carolina ; Abril, Gabriela ; Paltán, César A ; Fajardo, Jorge I

Switzerland: MDPI AG

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