Evaluation of Bond Strength of Self-Etching Adhesives Having Different pH on Primary and Permanent Teeth Dentin

• Published in: Journal of applied biomaterials & functional materials 2015-10, Vol.13 (3), p.274-279
• Main Authors: Ozmen, Bilal, Koyuturk, Alp Erdin, Tokay, Ugur, Cortcu, Murat, Sari, Mustafa Erhan
• Format: Article
• Language: English
• Subjects: Adhesives - chemistry; Dental Materials - chemistry; Dentin - chemistry; Humans; Hydrogen-Ion Concentration; Materials Testing; Molar - chemistry; Shear Strength; Tooth, Deciduous - chemistry
• ISSN: 2280-8000; 2280-8000
• DOI: 10.5301/jabfm.5000234

Purpose The purpose of this in vitro study was to evaluate the dentin shear bond strength of 4 self-etching adhesives having a different pH on primary and permanent teeth dentin. Methods The occlusal enamel was removed from 60 freshly extracted third molar and 60 primary second molar human teeth, which were randomly separated into 4 groups (n = 15). Four adhesive systems were applied: G-Bond (GC Corporation, Tokyo, Japan, pH: 1.5), Futura Bond M (Voco, Cuxhaver, Germany, pH: 1.4), Adper Prompt L-Pop (3M/ESPE, St Paul, MN, USA, pH: 0.8), and Clearfil S3 Bond (Kuraray Medical, Tokyo, Japan, pH: 2.7) according to the manufacturer's instructions. After the application of dentin bonding agents, a composite resin material (Z250 Restorative A2, 3M ESPE, St. Paul, MN, USA) for permanent teeth and a compomer resin material (Dyract Extra A2, Dentsply, Konstanz, Germany) for primary teeth was applied onto the prepared dentin surfaces. The data were obtained by using a universal test machine at a crosshead speed of 1 mm/min. Results The mean values were compared using Tukey's multiple comparison test. Although there was no difference between adhesives on the permanent teeth, Clearfil S3 adhesive showed higher bond (18.07 ± 0.58 MPa) (P>0.05). Lower bond strength values were obtained from primary teeth and especially G-Bond adhesive (9.36 ± 0.48 MPa) (P