Influence of silver nanoparticles on resin-dentin bond strength durability in a self-etch and an etch-and-rinse adhesive system
Restorative Dentistry & Endodontics
;
: e13-2019.
Article
in English
| WPRIM
| ID: wpr-742000
ABSTRACT
OBJECTIVES:
This study evaluated the effect of dentin pretreatment with silver nanoparticles (SNPs) and chlorhexidine (CHX) on the microshear bond strength (µSBS) durability of different adhesives to dentin. MATERIALS ANDMETHODS:
Occlusal surfaces of 120 human molars were ground to expose flat dentin surfaces. The specimens were randomly assigned to six groups (n = 20). Three groups (A, B, and C) were bonded with Adper Single Bond 2 (SB) and the other groups (D, E, and F) were bonded with Clearfil SE Bond (SEB). Dentin was pretreated with CHX in groups B and E, and with SNPs in groups C and F. The specimens were restored with Z250 composite. Half of the bonded surfaces in each group underwent µSBS testing after 24 hours and the other half was tested after 6 months of water storage.RESULTS:
SNP application was associated with a higher µSBS than was observed in the CHX and control groups for SEB after 24 hours (p < 0.05). A significantly lower µSBS was observed when no dentin pretreatment was applied compared to dentin pretreatment with CHX and SNPs for SB after 24 hours (p < 0.05). The µSBS values of the 6-month specimens were significantly lower than those obtained from the 24-hour specimens for all groups (p < 0.05). This decrease was much more pronounced when both adhesives were used without any dentin pretreatment (p < 0.05).CONCLUSIONS:
SNPs and CHX reduced the degradation of resin-dentin bonds over a 6-month period for both adhesive systems.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Silver
/
Water
/
Chlorhexidine
/
Adhesives
/
Polymorphism, Single Nucleotide
/
Dentin
/
Nanoparticles
/
Molar
Limits:
Humans
Language:
English
Journal:
Restorative Dentistry & Endodontics
Year:
2019
Type:
Article
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