Dental resin composites with improved antibacterial and mineralization properties via incorporating zinc/strontium-doped hydroxyapatite as functional fillers.
antibacterial
dental resin composites
ion-doped hydroxyapatite
mineralization
Journal
Biomedical materials (Bristol, England)
ISSN: 1748-605X
Titre abrégé: Biomed Mater
Pays: England
ID NLM: 101285195
Informations de publication
Date de publication:
10 05 2022
10 05 2022
Historique:
received:
22
02
2022
accepted:
28
04
2022
pubmed:
29
4
2022
medline:
12
5
2022
entrez:
28
4
2022
Statut:
epublish
Résumé
This study intends to improve the antibacterial and mineralization performance of photocurable dental resin composites (DRCs) to reduce the possibility of repair failure caused by secondary caries. To the end, functionalized hydroxyapatite (HAp), including Zn-doped (Zn/HAp) and Sr-doped HAp (Sr/HAp), were added into the bisphenol A glycidyl methacrylate and triethylene glycol dimethacrylate mixture, providing the DRCs with antibacterial and mineralization capacity, respectively. By controlling the total amount of inorganic filler at 70 wt%, these HAp powders were introduced into the resin matrix with barium glass powder (BaGP), while the ratios of HAp to aGP varied from 0:70 to 8:62. And the 8 wt% of HAp could be pure HAp, Zn/HAp, Sr/HAp, or Zn/HAp +Sr/HAp in different ratios (i.e. 2:6, 4:4, 6:2). Though the fillers varied, the obtained DRCs displayed similar micro-morphology, flexural strength (∼110 MPa) and modulus (∼7 GPa), and Vickers hardness (∼65). When the doping amounts of Sr
Identifiants
pubmed: 35483341
doi: 10.1088/1748-605X/ac6b72
doi:
Substances chimiques
Anti-Bacterial Agents
0
Composite Resins
0
Hydroxyapatites
0
Durapatite
91D9GV0Z28
Zinc
J41CSQ7QDS
Strontium
YZS2RPE8LE
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2022 IOP Publishing Ltd.