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Effect of phosphoric acid etching prior to self-etching primer application on adhesion of resin composite to enamel and dentin.
Am J Dent. 2002 Oct; 15(5):305-8.AJ

Abstract

PURPOSE

To investigate the effect of phosphoric acid etching prior to the application of self-etching primer on the adhesion of resin composite to tooth substrates.

MATERIALS AND METHODS

Bovine teeth were randomly divided in four groups of 20 samples each. Tooth surface conditions were as follows: Group 1: enamel ground with 600-grit SiC paper; Group 2: ground enamel was etched with 35% phosphoric acid gel for 15 seconds, water-rinsed and completely dried; Group 3: ground dentin; Group 4: dentin etched using the same method as Group 2. The samples in each group were divided in two subgroups of 10 each. UniFil Bond (UB) and Clearfil SE Bond (SE) were applied as adhesive systems with self-etching primers, and a layer of resin composite (AP-X) was placed and light-cured for 40 seconds. The tensile bond strengths (TBS) were measured and the resin-tooth interfaces were observed with scanning electron microscopy.

RESULTS

The mean TBS values were 11.2 MPa (Group 1-UB), 14.3 MPa (Group 1-SE), 16.3 MPa (Group 2-UB), 20.5 MPa (Group 2-SE), 13.4 MPa (Group 3-UB), 16.7 MPa (Group 3-SE), 9.3 MPa (Group 4-UB) and 12.6 MPa (Group 4-SE). Two-way ANOVA and Scheffe's F test showed that the enamel etching significantly increased the TBS values but dentin etching significantly decreased the TBS values.

Authors+Show Affiliations

Department of Operative Dentistry, Okayama University Graduate School of Medicine and Dentistry, Japan. torii@md.okayama-u.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

12537339

Citation

Torii, Yasuhiro, et al. "Effect of Phosphoric Acid Etching Prior to Self-etching Primer Application On Adhesion of Resin Composite to Enamel and Dentin." American Journal of Dentistry, vol. 15, no. 5, 2002, pp. 305-8.
Torii Y, Itou K, Nishitani Y, et al. Effect of phosphoric acid etching prior to self-etching primer application on adhesion of resin composite to enamel and dentin. Am J Dent. 2002;15(5):305-8.
Torii, Y., Itou, K., Nishitani, Y., Ishikawa, K., & Suzuki, K. (2002). Effect of phosphoric acid etching prior to self-etching primer application on adhesion of resin composite to enamel and dentin. American Journal of Dentistry, 15(5), 305-8.
Torii Y, et al. Effect of Phosphoric Acid Etching Prior to Self-etching Primer Application On Adhesion of Resin Composite to Enamel and Dentin. Am J Dent. 2002;15(5):305-8. PubMed PMID: 12537339.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of phosphoric acid etching prior to self-etching primer application on adhesion of resin composite to enamel and dentin. AU - Torii,Yasuhiro, AU - Itou,Kousuke, AU - Nishitani,Yoshihiro, AU - Ishikawa,Kunio, AU - Suzuki,Kazuomi, PY - 2003/1/23/pubmed PY - 2003/4/18/medline PY - 2003/1/23/entrez SP - 305 EP - 8 JF - American journal of dentistry JO - Am J Dent VL - 15 IS - 5 N2 - PURPOSE: To investigate the effect of phosphoric acid etching prior to the application of self-etching primer on the adhesion of resin composite to tooth substrates. MATERIALS AND METHODS: Bovine teeth were randomly divided in four groups of 20 samples each. Tooth surface conditions were as follows: Group 1: enamel ground with 600-grit SiC paper; Group 2: ground enamel was etched with 35% phosphoric acid gel for 15 seconds, water-rinsed and completely dried; Group 3: ground dentin; Group 4: dentin etched using the same method as Group 2. The samples in each group were divided in two subgroups of 10 each. UniFil Bond (UB) and Clearfil SE Bond (SE) were applied as adhesive systems with self-etching primers, and a layer of resin composite (AP-X) was placed and light-cured for 40 seconds. The tensile bond strengths (TBS) were measured and the resin-tooth interfaces were observed with scanning electron microscopy. RESULTS: The mean TBS values were 11.2 MPa (Group 1-UB), 14.3 MPa (Group 1-SE), 16.3 MPa (Group 2-UB), 20.5 MPa (Group 2-SE), 13.4 MPa (Group 3-UB), 16.7 MPa (Group 3-SE), 9.3 MPa (Group 4-UB) and 12.6 MPa (Group 4-SE). Two-way ANOVA and Scheffe's F test showed that the enamel etching significantly increased the TBS values but dentin etching significantly decreased the TBS values. SN - 0894-8275 UR - https://www.unboundmedicine.com/medline/citation/12537339/Effect_of_phosphoric_acid_etching_prior_to_self_etching_primer_application_on_adhesion_of_resin_composite_to_enamel_and_dentin_ L2 - https://ClinicalTrials.gov/search/term=12537339 [PUBMED-IDS] DB - PRIME DP - Unbound Medicine ER -