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The role of etching in bonding to enamel: a comparison of self-etching and etch-and-rinse adhesive systems.
Dent Mater. 2009 Nov; 25(11):1459-67.DM

Abstract

OBJECTIVE

Etch and resin infiltration morphologies were compared for three self-etch adhesive (SEA) systems and eleven model etch-and-rinse (ERA) systems using various phosphoric acid (PA) concentrations with Adper Single Bond Plus (SB) adhesive. Matches for the morphologies were made between each SEA system and one of the PA/SB systems and bond strength measurements were made for all the systems. The hypothesis was that similar morphology would result in similar bond strength assuming micro-mechanical bonding is the mechanism of adhesion.

METHODS

Three specimens were prepared on polished (4000 grit) human enamel for each adhesive system to examine etch and resin infiltration morphology by SEM. For the latter, the adhesive systems were bonded using recommended methods and the enamel was dissolved in acid to reveal the resin. The etch patterns for the SEA systems were determined by rinsing off the material with water and acetone. Polished (4000 grit) human enamel was used with each adhesive system to determine 24-h resin composite to enamel shear bond strengths (SBS). A minimum of 10 specimens were used for each group. Data were analyzed by a one factor ANOVA and Fisher's PLSD post hoc test.

RESULTS

The SBS to polished enamel for two of the three SEA systems were statistically significantly greater (p<0.05) than the PA/SB matched systems, indicating that chemical bonding might be partly responsible for the measured bond strength. All three SEA systems provided statistically lower (p<0.05) SBS values than the PA/SB systems with PA concentrations between 2.5% and 40%.

SIGNIFICANCE

Although chemical bonding may be present for some SEA systems it does not provide enough increase in bond strength to compete with the bond produced by ERA systems using phosphoric acid etching of enamel.

Authors+Show Affiliations

Department of General Dentistry, Creighton University School of Dentistry, 2500 California Plaza, Omaha, NE 68178, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19665220

Citation

Erickson, Robert L., et al. "The Role of Etching in Bonding to Enamel: a Comparison of Self-etching and Etch-and-rinse Adhesive Systems." Dental Materials : Official Publication of the Academy of Dental Materials, vol. 25, no. 11, 2009, pp. 1459-67.
Erickson RL, Barkmeier WW, Latta MA. The role of etching in bonding to enamel: a comparison of self-etching and etch-and-rinse adhesive systems. Dent Mater. 2009;25(11):1459-67.
Erickson, R. L., Barkmeier, W. W., & Latta, M. A. (2009). The role of etching in bonding to enamel: a comparison of self-etching and etch-and-rinse adhesive systems. Dental Materials : Official Publication of the Academy of Dental Materials, 25(11), 1459-67. https://doi.org/10.1016/j.dental.2009.07.002
Erickson RL, Barkmeier WW, Latta MA. The Role of Etching in Bonding to Enamel: a Comparison of Self-etching and Etch-and-rinse Adhesive Systems. Dent Mater. 2009;25(11):1459-67. PubMed PMID: 19665220.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The role of etching in bonding to enamel: a comparison of self-etching and etch-and-rinse adhesive systems. AU - Erickson,Robert L, AU - Barkmeier,Wayne W, AU - Latta,Mark A, Y1 - 2009/08/07/ PY - 2009/05/28/received PY - 2009/06/30/revised PY - 2009/07/02/accepted PY - 2009/8/12/entrez PY - 2009/8/12/pubmed PY - 2009/12/23/medline SP - 1459 EP - 67 JF - Dental materials : official publication of the Academy of Dental Materials JO - Dent Mater VL - 25 IS - 11 N2 - OBJECTIVE: Etch and resin infiltration morphologies were compared for three self-etch adhesive (SEA) systems and eleven model etch-and-rinse (ERA) systems using various phosphoric acid (PA) concentrations with Adper Single Bond Plus (SB) adhesive. Matches for the morphologies were made between each SEA system and one of the PA/SB systems and bond strength measurements were made for all the systems. The hypothesis was that similar morphology would result in similar bond strength assuming micro-mechanical bonding is the mechanism of adhesion. METHODS: Three specimens were prepared on polished (4000 grit) human enamel for each adhesive system to examine etch and resin infiltration morphology by SEM. For the latter, the adhesive systems were bonded using recommended methods and the enamel was dissolved in acid to reveal the resin. The etch patterns for the SEA systems were determined by rinsing off the material with water and acetone. Polished (4000 grit) human enamel was used with each adhesive system to determine 24-h resin composite to enamel shear bond strengths (SBS). A minimum of 10 specimens were used for each group. Data were analyzed by a one factor ANOVA and Fisher's PLSD post hoc test. RESULTS: The SBS to polished enamel for two of the three SEA systems were statistically significantly greater (p<0.05) than the PA/SB matched systems, indicating that chemical bonding might be partly responsible for the measured bond strength. All three SEA systems provided statistically lower (p<0.05) SBS values than the PA/SB systems with PA concentrations between 2.5% and 40%. SIGNIFICANCE: Although chemical bonding may be present for some SEA systems it does not provide enough increase in bond strength to compete with the bond produced by ERA systems using phosphoric acid etching of enamel. SN - 1879-0097 UR - https://www.unboundmedicine.com/medline/citation/19665220/The_role_of_etching_in_bonding_to_enamel:_a_comparison_of_self_etching_and_etch_and_rinse_adhesive_systems_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0109-5641(09)00243-7 DB - PRIME DP - Unbound Medicine ER -