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Effect of chemomechanical caries removal on bonding of resin-modified glass ionomer cement adhesives to caries-affected dentine.
- Source :
- Australian Dental Journal; Jun2015, Vol. 60 Issue 2, p190-199, 10p, 1 Black and White Photograph, 1 Diagram, 3 Charts, 1 Graph
- Publication Year :
- 2015
-
Abstract
- Background: This study evaluated the effect of: (1) chemomechanical caries removal (CMCR); (2) dentine surface treatments and (3) dentine substrates on adhesion of resin-modified glass ionomer cement (RMGIC) adhesives. Methods: One hundred and twenty permanent molars exhibiting moderate cavitation on the occlusal surface into dentine were used. Seventy-five carious molars were used for bond strength testing; the remaining 45 for micromorphological evaluation of the bonded interface. Caries was excavated with NaOCl-based CMCR (Carisolv), enzyme-based CMCR (Papacarie), or conventional rotary caries removal methods. Dentine surface treatment was performed using 37% phosphoric acid, 25-30% PAA or 20% PAA + 3% AlCl<subscript>3</subscript>. Results: Three-way ANOVA revealed that all three factors 'caries removal methods', 'dentine surface treatments' and 'dentine substrates' did not significantly affect bond strength (p > 0.05). Scanning electron microscopy micrographs showed that the acid-base resistant layer was thicker in caries-affected dentine compared to sound dentine. Conclusions: NaOCl-and enzyme-based CMCR methods have no adverse effect on adhesion of RMGIC adhesives to sound and caries-affected dentine. Dentine surface treatment with 37% phosphoric acid for 5 s has no negative effect on bonding of RMGIC adhesives to dentine compared with using polyacrylic acid for 10 s. RMGIC adhesives bonded well to both sound and caries-affected dentine. [ABSTRACT FROM AUTHOR]
- Subjects :
- DENTAL cements
DENTAL materials
DENTIN
DENTAL care
DENTAL caries
Subjects
Details
- Language :
- English
- ISSN :
- 00450421
- Volume :
- 60
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Australian Dental Journal
- Publication Type :
- Academic Journal
- Accession number :
- 103163315
- Full Text :
- https://doi.org/10.1111/adj.12318