title: Shear bond strength of two adhesive systems bonded to Er:YAG laser-prepared dentin.
abstract: Dentinal surfaces prepared with an Er:YAG laser have distinctly different characteristics compared to those prepared with conventional instruments. The objective of this study was to evaluate the shear bond strength of a total-etch adhesive system and a self-etch adhesive system to dentin, prepared conventionally or with an Er:YAG laser. Specimens that were prepared with a diamond bur and treated with the total-etch adhesive showed the highest mean bond strength, followed by specimens prepared with the laser and treated with the total-etch adhesive, specimens prepared with a diamond bur and treated with the self-etch adhesive, and specimens prepared with the laser and treated with the self-etch adhesive, but there were no differences among the groups (P > 0.05). These data indicate that the tested adhesive systems promote similar shear bond strengths, whether the dentin is prepared with a diamond bur or an Er:YAG laser, and that an Er:YAG laser is a suitable cavity preparation method that promotes an adequate surface for a posterior adhesive procedure.
authors: Department of Operative Dentistry, School of Dentistry, Rio de Janeiro State University, Rio De Janeiro, Brazil.
authors: Marta Proto
authors: MP
authors: da Silva
authors: Marcos Oliveira
authors: MO
authors: Barceleiro
authors: Katia Regina Hostilio Cervantes
authors: KR
authors: Dias
authors: Fatima
authors: F
authors: Zanin
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D017554:Carbon Compounds, Inorganic / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry; D003799:Dental Stress Analysis / Q000295:instrumentation; D003804:Dentin / Q000528:radiation effects*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D018130:Diamond / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry; D006801:Humans; D053844:Lasers, Solid-State; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D010710:Phosphates / Q000737:chemistry; D010756:Phosphoric Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D017655:Silicon Compounds / Q000737:chemistry; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D019246:Tooth Preparation / Q000295:instrumentation / Q000379:methods; D014867:Water / Q000737:chemistry
chemical_list: D017554:Carbon Compounds, Inorganic; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; C469823:Etch&Prime 3.0; D008689:Methacrylates; D010710:Phosphates; D010756:Phosphoric Acids; D019279:Resin Cements; C425844:Scotchbond Multi-Purpose Plus; D017655:Silicon Compounds; D014867:Water; D000431:Ethanol; D018130:Diamond; C030242:phosphoric acid; C022088:silicon carbide