Bonding of resin to artificially carious dentin

Vanthana Sattabanasuk, Yasushi Shimada, Junji Tagami

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)183-192
Number of pages10
JournalJournal of Adhesive Dentistry
Volume7
Issue number3
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

Dental Caries
Dentin
Adhesives
Buffers
Shear Strength
Lysergic Acid Diethylamide
Acids
Third Molar
Composite Resins
Analysis of Variance

Keywords

  • Demineralized dentin
  • Dentin adhesive
  • Microshear bond test

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Bonding of resin to artificially carious dentin. / Sattabanasuk, Vanthana; Shimada, Yasushi; Tagami, Junji.

In: Journal of Adhesive Dentistry, Vol. 7, No. 3, 2005, p. 183-192.

Research output: Contribution to journalArticle

Sattabanasuk, V, Shimada, Y & Tagami, J 2005, 'Bonding of resin to artificially carious dentin', Journal of Adhesive Dentistry, vol. 7, no. 3, pp. 183-192.
Sattabanasuk, Vanthana ; Shimada, Yasushi ; Tagami, Junji. / Bonding of resin to artificially carious dentin. In: Journal of Adhesive Dentistry. 2005 ; Vol. 7, No. 3. pp. 183-192.
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