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ชื่อเรื่อง: | Bonding of resin to artificially carious dentin |
ผู้แต่ง: | Sattabanasuk V. Shimada Y. Tagami J. |
Keywords: | adhesive agent dentin bonding agent resin cement analysis of variance article chemically induced disorder chemistry chi square distribution clinical trial comparative study controlled clinical trial controlled study dental caries dentin drug effect human randomized controlled trial time Adhesives Analysis of Variance Chi-Square Distribution Dental Caries Dentin Dentin-Bonding Agents Humans Resin Cements Time Factors |
วันที่เผยแพร่: | 2005 |
บทคัดย่อ: | Purpose: To evaluate the bond strength of adhesive resins to artificially carious dentin specimens which were previously exposed to an acid buffer solution for various periods. Materials and Methods: Flat dentin disks were obtained from superficial occlusal dentin of extracted human third molars and polished with wet silicon carbide paper. Dentin disks were immersed in acid buffer solution for different periods to create the demineralized dentin layer. The first group of demineralized specimens was used for the evaluation of demineralization depth under SEM and the second group was used for the bond strength measurement. Shear bond strengths mediated by three dentin adhesives (Clearfil SE Bond, OptiBond Solo Plus Total-Etch, and OptiBond Solo Plus Self-Etch) were examined. A 0.75-mm-diameter area of dentin was bonded according to the manufacturers' instructions before placing a 0.5-mm-high resin composite cylinder. The bonds were stressed in shear at a crosshead speed of 1 mm/min. All data were analyzed using ANOVA and LSD multiple comparison test. Results: Depth of demineralization increased with the prolongation of demineralizing time. After dentin specimens were demineralized for up to 24 h, bond strengths of the self-etching adhesives were significantly higher than those of the total-etch adhesive. However, for longer demineralization periods, no statistical differences in bond strengths were observed. SEM photographs showed that resins cannot thoroughly infiltrate through the whole depth of the demineralized dentin layer. Conclusion: Bond strengths to demineralized, artificially carious dentin were affected by the depth of demineralization and adhesive resins used. |
URI: | https://ir.swu.ac.th/jspui/handle/123456789/15074 https://www.scopus.com/inward/record.uri?eid=2-s2.0-26444474172&partnerID=40&md5=8cfc011b62ff2cf286c04c1bb59a25a0 |
ISSN: | 14615185 |
Appears in Collections: | Scopus 1983-2021 |
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