Surface free-energy measurements as indicators of the bonding characteristics of single-step self-etching adhesives.
This study examined the surface free-energy of dentin treated with the single-step self-etching adhesives Bond Force, Clearfil tri-S Bond, and G-Bond Plus. The labial dentin surfaces of bovine mandibular incisors were wet ground with #180-, #600-, and #2,000-grit silicon carbide paper. The adhesives were applied to the ground dentin, and then rinsed with acetone and distilled water. The surface free-energies were determined by measuring the contact angles of three test liquids placed on the adhesive-treated dentin. The surface free-energies of the samples treated with the G-Bond Plus and Clearfil tri-S Bond adhesives increased as the surface roughness decreased. No significant differences in the surface free-energy were found for the samples treated with the Bond Force adhesive, regardless of the surface roughness. These results indicated that dentin surfaces treated with adhesives did not promote a higher surface-energy state, and that differences in the components of surface energy were apparent for the adhesives tested.
Inoue
Naoki
N
Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan.
Tsujimoto
Akimasa
A
Takimoto
Masayuki
M
Ootsuka
Eiichiro
E
Endo
Hajime
H
Takamizawa
Toshiki
T
Miyazaki
Masashi
M
D000818:Animals; D002417:Cattle; D003188:Composite Resins; D001840:Dental Bonding; D045662:Dental Etching / Q000379:methods; D003804:Dentin; D017220:Dentin-Bonding Agents; D019279:Resin Cements; D013499:Surface Properties; D013816:Thermodynamics; D017155:Wettability
D003188:Composite Resins; D017220:Dentin-Bonding Agents; D019279:Resin Cements