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Type: Artigo de periódico
Title: Marginal Adaptation Of Indirect Restorations Using Different Resin Coating Protocols.
Author: Medina, Alberth David Correa
de Paula, Andréia Bolzan
de Fucio, Suzana Beatriz Portugal
Puppin-Rontani, Regina Maria
Correr-Sobrinho, Lourenço
Sinhoreti, Mário Alexandre Coelho
Abstract: This study evaluated the influence of material combinations used in the resin coating technique (RCT) on the marginal adaptation of indirect restorations with gingival margins in enamel (EM) and cement (CM). Eighty third-molars were used. Two cavities were prepared in each tooth. The cavities were distributed into 16 groups. Cavities with EM were filled with the following material combinations: G1: Single-Bond 2 (Sb2), G2: Sb2 + Bond/Scotchbond-Multipurpose (Sb2B), G3: Sb2 + Filtek-Flow Z350 (Sb2Fl), G4: Scotchbond-Multipurpose (SBMP), G5: Clearfil-S3 (CS3), G6: CS3 + Bond/Clearfil-SE Bond (CSE3B), G7: CS3 + Protect Liner F (CS3PL) and G8: Clearfil SE Bond + Protect Liner F (CSEBPL). The same combinations were applied to the cavities in CM: G9, G10, G11, G12, G13, G14, G15, G16, respectively. The fillings were performed with the Sinfony-System (3M/ESPE). After 24 h, the teeth were submitted to thermocycling (2,000 cycles, 5° to 55°C) and load-cycling (50,000 cycles, 50 N). Next, the Caries-Detector (Kuraray) was applied to the restoration margins. Images from the proximal margin were evaluated using the Image-Tool 3.0 software. The results were submitted to ANOVA and Tukey's test (α=0.05). The mean values (%) for the groups were: EM: G1=46.68, G2=15.53, G3=19.83, G4=27.53; G5=59.49, G6=25.13, G7=34.37, G8=15.20; CM: G9=38.38, G10=23.25, G11=26.97, G12=25.85, G13=37.81, G14=30.62, G15=29.17, G16=20.31. The highest percentages of marginal gap on EM or CM were found in the groups that did not use a liner. It can be concluded that the most appropriate RCT combinations were the groups that used a liner.
Subject: Acid Etching, Dental
Bisphenol A-glycidyl Methacrylate
Composite Resins
Dental Cavity Lining
Dental Cavity Preparation
Dental Cements
Dental Cementum
Dental Enamel
Dental Marginal Adaptation
Dental Materials
Dental Restoration, Permanent
Dentin-bonding Agents
Fluorescent Dyes
Materials Testing
Polyethylene Glycols
Polymethacrylic Acids
Resin Cements
Stress, Mechanical
Surface Properties
Time Factors
Citation: Brazilian Dental Journal. v. 23, n. 6, p. 672-8, 2012.
Rights: fechado
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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