Effect of fluoride in phosphate buffer solution on bonding to artificially carious enamel.
The purpose of the present study was to evaluate the effect of fluoride on resin bonding to artificially carious enamel. Specimens from demineralized human enamel sections were prepared using two commercially available adhesives (Clearfil SE Bond, Kuraray; Single Bond, 3M) and a composite resin (Clearfil AP-X, Kuraray) according to manufacturers' instructions. They were then immersed in phosphate buffered saline solution with varied fluoride concentrations at 0, 0.1, 0.5, 1, and 10 ppm. After immersion in each solution for one, three, or seven days, microshear bond strength was measured. The bond strengths of both adhesive systems to artificially carious enamel significantly increased after immersion in fluoride-phosphate buffer solution. Based on the findings obtained, we thus proposed not to remove the white enamel lesions for bonding in the clinic. They might be preserved and treated using fluoride applications.
Wang
Hao
H
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan. hao-wang@hotmail.co.jp
Shimada
Yasushi
Y
Tagami
Junji
J
D017438:Bisphenol A-Glycidyl Methacrylate; D002021:Buffers; D001840:Dental Bonding; D003731:Dental Caries; D003743:Dental Enamel; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents; D005459:Fluorides; D006801:Humans; D008963:Molar; D010710:Phosphates; D019279:Resin Cements; D033081:Shear Strength
D002021:Buffers; C438313:Clearfil SE Bond; D017220:Dentin-Bonding Agents; D010710:Phosphates; D019279:Resin Cements; C115612:single bond; D017438:Bisphenol A-Glycidyl Methacrylate; D005459:Fluorides