In vitro permeability of etch-and-rinse and self-etch adhesives used for immediate dentin sealing.
To investigate the permeability of deep dentin following immediate sealing with different etch-and-rinse and self-etch adhesives (Single Bond 2, Adper Prompt L-Pop, Clearfil Protect Bond, Clearfil S3 Bond, G-Bond) and a dentin desensitizer (Gluma). Fluid-transport model was used to measure fluid conductance during and after application of adhesives. Polyvinylsiloxane impressions of bonded dentin were taken to monitor fluid transudation from the surface of the adhesives. The area and number of dentinal fluid droplets and/or blisters were calculated using image analysis. None of the adhesives were able to block fluid conductance completely. The fluid conductance values of the adhesives displayed the following statistical ranking (p<0.05): G-Bond≤Clearfil Protect Bond<Smear-layer-covered dentin<S3 Bond≤Single Bond 2≤Adper Prompt L-Pop<Gluma Desensitizer<Acid-etched dentin. Highly significant correlation was observed between the permeability of the tested adhesives and the area fraction of fluid droplets/blisters on the adhesive surfaces (r=0.99, p<0.01).
Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey. drcemsahin@yahoo.com
Cem
C
Sahin
Zafer C
ZC
Cehreli
Muhittin
M
Yenigul
Bulent
B
Dayangac
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001840:Dental Bonding; D045662:Dental Etching / Q000379:methods; D003763:Dental Leakage / Q000517:prevention & control*; D003806:Dentin Permeability; D019234:Dentinal Fluid / Q000502:physiology*; D006801:Humans; D057446:Hydrodynamics; D016628:Replica Techniques; D019279:Resin Cements / Q000737:chemistry*; D018709:Statistics, Nonparametric; D055815:Young Adult
D019279:Resin Cements