Incompatibility of Self-etch Adhesives with Chemical/Dual-cured Composites: Two-step vs One-step Systems

C. Cheong, N. M. King, D. H. Pashley, M. Ferrari, M. Toledano, Franklin Chi Meng Tay

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

This study tested the null hypothesis that there is no difference between two-step and one-step self-etch adhesives in their compatibility with these composites. The microtensile bond strengths (μTBS) of two two-step systems (Clearfil SE Bond, Kuraray and Tyrian SPE/One-Step Plus, BISCO) were compared with two one-step systems (Xeno III, Dentsply DeTrey and Brush&Bond, Parkell) for their coupling to a dual-cured composite. Silver tracer penetration of the four adhesives bonded to a light-cured or a chemical-cured composite was examined using TEM. Significant differences in μTBSs between composite curing modes were seen only in the one-step adhesives. For one-step self-etch adhesives bonded to the chemical-cured composite, TEM revealed signs of frank composite uncoupling along the adhesive-composite interface, which may be attributed to the adverse chemical interaction between the acidic adhesive and the composite. In addition, "water trees" that represent channels of increased permeability with the polymerized adhesive layer were also observed in the one-step adhesives. Both features were absent along the resin-dentin interfaces when chemical-cured composites were coupled to the two-step self-etch adhesives.

Original languageEnglish (US)
Pages (from-to)747-755
Number of pages9
JournalOperative Dentistry
Volume28
Issue number6
StatePublished - Nov 1 2003

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Adhesives
Dentin
Silver
Permeability
Light
Water

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Cheong, C., King, N. M., Pashley, D. H., Ferrari, M., Toledano, M., & Tay, F. C. M. (2003). Incompatibility of Self-etch Adhesives with Chemical/Dual-cured Composites: Two-step vs One-step Systems. Operative Dentistry, 28(6), 747-755.

Incompatibility of Self-etch Adhesives with Chemical/Dual-cured Composites : Two-step vs One-step Systems. / Cheong, C.; King, N. M.; Pashley, D. H.; Ferrari, M.; Toledano, M.; Tay, Franklin Chi Meng.

In: Operative Dentistry, Vol. 28, No. 6, 01.11.2003, p. 747-755.

Research output: Contribution to journalArticle

Cheong, C, King, NM, Pashley, DH, Ferrari, M, Toledano, M & Tay, FCM 2003, 'Incompatibility of Self-etch Adhesives with Chemical/Dual-cured Composites: Two-step vs One-step Systems', Operative Dentistry, vol. 28, no. 6, pp. 747-755.
Cheong, C. ; King, N. M. ; Pashley, D. H. ; Ferrari, M. ; Toledano, M. ; Tay, Franklin Chi Meng. / Incompatibility of Self-etch Adhesives with Chemical/Dual-cured Composites : Two-step vs One-step Systems. In: Operative Dentistry. 2003 ; Vol. 28, No. 6. pp. 747-755.
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