Influence of CVD diamond tips and Er:YAG laser irradiation on bonding of different adhesive systems to dentin
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Data
2013-01-01
Autores
da Silva, Melissa Aline [UNESP]
Nicolo, Rebeca Di [UNESP]
Barcellos, Daphne Camara [UNESP]
Batista, Graziela Ribeiro [UNESP]
Pucci, Cesar Rogerio [UNESP]
Torres, Carlos Rocha Gomes [UNESP]
Borges, Alessandra Bühler [UNESP]
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Resumo
Aim: The aim of this study was to compare the microtensile bond strength of three adhesive systems, using different methods of dentin preparation. Materials and methods: A hundred and eight bovine teeth were used. The dentin from buccal face was exposed and prepared with three different methods, divided in 3 groups: Group 1 (DT)- diamond tip on a high-speed handpiece; Group 2 (CVD)-CVD tip on a ultrasonic handpiece; Group 3 (LA)-Er: YAG laser. The teeth were divided into 3 subgroups, according adhesive systems used: Subgroup 1-Adper Single Bond Plus/3M ESPE (SB) total-etch adhesive; Subgroup 2-Adper Scotchbond SE/3M ESPE (AS) selfetching adhesive; Subgroup 3-Clearfil SE Bond/Kuraray (CS) selfetching adhesive. Blocks of composite (Filtek Z250-3M ESPE) 4 mm high were built up and specimens were stored in deionized water for 24 hours at 37°C. Serial mesiodistal and buccolingual cuts were made and stick-like specimens were obtained, with transversal section of 1.0 mm2. The samples were submitted to microtensile test at 1 mm/min and load of 10 kg in a universal testing machine. Data (MPa) were subjected to ANOVA and Tukey's tests (p < 0.05). Results and conclusion: Surface treatment with Diamond or CVD tips associated with Clearfil SE Bond adhesive produced significantly lower bond strength values compared to other groups. Surface treatment with Er: YAG laser associated with Single Bond Plus or Clearfil SE Bond adhesives and surface treatment with CVD tip associated with Adper Scotchbond SE adhesive produced significantly lower bond strength values compared to surface treatment with diamond or CVD tips associated with Single Bond Plus or Adper Scotchbond SE adhesives. Clinical significance: Interactions between laser and the CVD tip technologies and the different adhesive systems can produce a satisfactory bonding strength result, so that these associations may be beneficial and enhance the clinical outcomes.
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Adhesive system, Dentin bond strength, Smear layer, bisphenol A bis(2 hydroxypropyl) ether dimethacrylate, Clearfil SE Bond, dentin bonding agent, diamond, filtek Z350, resin, resin cement, Single Bond Plus, water, animal, cattle, chemistry, comparative study, dental bonding, dental device, dental procedure, dental surgery, dentin, equipment, mechanical stress, randomization, scanning electron microscopy, scotchbond, solid state laser, surface property, temperature, tensile strength, time, ultrasound, ultrastructure, Animals, Bisphenol A-Glycidyl Methacrylate, Cattle, Composite Resins, Dental Bonding, Dental Cavity Preparation, Dental High-Speed Equipment, Dental Stress Analysis, Dentin, Dentin-Bonding Agents, Diamond, Lasers, Solid-State, Microscopy, Electron, Scanning, Random Allocation, Resin Cements, Smear Layer, Stress, Mechanical, Surface Properties, Temperature, Tensile Strength, Time Factors, Ultrasonics, Water
Como citar
Journal of Contemporary Dental Practice, v. 14, n. 1, p. 14-20, 2013.