Effect of various agitation methods on adhesive layer formation of hema-free universal dentin adhesive

Ji Hyun Jang, Bong Ki Jeon, So Yeon Mo, Minjoo Park, Dongseok Choi, Kyoung Kyu Choi, Duck Su Kim

Research output: Contribution to journalArticle

Abstract

This study evaluates the effects of various agitation methods on the adhesive layer formation of a new HEMA-free universal dentin adhesive. The μTBS of the universal adhesive, G-Premio BOND in the self-etch mode was evaluated using three agitation methods [passive agitation (PA), active agitation (AA), ultrasonic agitation (UA)], with and without aging treatment. Two-way analysis of variance revealed that aging treatment was not a statistically significant factor. Tukey’s HSD test showed significant differences based on the application method, UA>AA>PA. TEM images of the PA group revealed multiple water blisters in the adhesive layers; AA and UA groups presented significantly less or no blisters within the adhesive layers; thus, AA and UA groups exhibited better bonding performance for the HEMA-free universal adhesive. It is assumed that the entrap ped blisters can be reduced with the active application of dentin adhesive, and thus improving the bonding performance.

Original languageEnglish (US)
Pages (from-to)101-106
Number of pages6
JournalDental materials journal
Volume38
Issue number1
DOIs
StatePublished - Jan 1 2019

Keywords

  • Agitation
  • HEMA
  • Micro-tensile bond strength
  • Transmission electron microscopy
  • Universal dentin adhesive

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)

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