Influence of abrasive dentifrices on polymeric reconstructive material properties after simulated toothbrushing.
Resin composite
acrylic resin
hardness
surface roughness
toothbrushing
Journal
Biomaterial investigations in dentistry
ISSN: 2641-5275
Titre abrégé: Biomater Investig Dent
Pays: England
ID NLM: 101755000
Informations de publication
Date de publication:
2023
2023
Historique:
medline:
29
11
2023
pubmed:
29
11
2023
entrez:
29
11
2023
Statut:
epublish
Résumé
To assess the influence of dentifrices with different abrasiveness levels on the properties of dental reconstructive materials. Forty-eight cylinders were obtained from four polymeric materials, being two CAD/CAM acrylic resins (Ivotion-Dent and Ivotion-Base), one injected acrylic resin (IvoBase-Hydrid) and one light-cured resin composite (Empress Direct). Specimens were allocated to four subgroups for toothbrushing simulation according to the dentifrice relative dentin abrasivity (RDA) and silica content: (i) RDA 0 = 0%; (ii) RDA 50 = 3%; (iii) RDA 100 = 10%; and (iv) RDA 120 = 25%. Specimens were then subjected to toothbrushing. Surface analyses [surface roughness Ra (SR) and scanning electron microscopy (SEM)] along with hardness and optical properties [translucency parameter (TP) and contrast ratio (CR)] were evaluated before and after toothbrushing. Statistical analyses were performed using ANOVA and Tukey test. A significant increase in SR was observed after toothbrushing with higher RDA toothpastes for Ivotion-Dent (100 and 120) and IvoBase-Hybrid (120). Ivotion-Base and Empress Direct presented no significant differences in SR when analyzed as a function of timepoint and RDA levels. Hardness was not influenced by toothbrushing with different RDA dentifrices, except for Empress Direct with RDA 0 toothpaste, where a decrease in the hardness was observed. TP of Ivotion-Dent and Empress Direct significantly decreased after toothbrushing with higher RDA dentifrices and CR of Ivotion-Dent, Empress Direct and IvoBase-Hybrid significantly increased with higher RDA dentifrices. The levels of dentifrice abrasiveness affected differently the SR, hardness and optical properties of polymeric reconstructive materials after toothbrushing.
Identifiants
pubmed: 38027422
doi: 10.1080/26415275.2023.2268670
pii: 2268670
pmc: PMC10631383
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2268670Informations de copyright
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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