Effect of rubbing force magnitude on bond strength of universal adhesives applied in self-etch mode


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Irmak O., YAMAN B. C. , ORHAN E. O. , Ozer F., Blatz M. B.

DENTAL MATERIALS JOURNAL, vol.37, no.1, pp.139-145, 2018 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 1
  • Publication Date: 2018
  • Doi Number: 10.4012/dmj.2017-018
  • Title of Journal : DENTAL MATERIALS JOURNAL
  • Page Numbers: pp.139-145
  • Keywords: Adhesion, Universal adhesive, Rubbing, Self-etch, PLACEMENT AGITATION, SMEAR LAYERS, DENTIN, PERFORMANCE, TIME

Abstract

This study investigated the effect of rubbing force magnitude on dentin bond strengths of multi-mode adhesives applied in self-etch mode. Seventy-two extracted human molar teeth were used. Two different universal adhesives Single Bond Universal (SB) and Clearfil Universal (CL) were applied onto dentin surfaces in three different modes: without rubbing (NR), rubbing with 40 gf (gram force) (40) or 80 gf (80) load. Teeth were restored with a resin composite. Half of the specimens were subject to thermal aging (10,000 cycles). Microtensile bond strength was measured and data were statistically analyzed with two-way analysis of variance and Tukey's test (alpha=0.05). Baseline bond strength values for CL adhesive were improved by rubbing (40 and 80 gf) as compared to no rubbing (p<0.05). Rubbing did not significantly improve bond strength values for SB, regardless of aging (p>0.05). Rubbing improves bonding performance of some universal adhesives to dentin when applied in self-etch mode.