Bonding effectiveness of self-adhesive and conventional-type adhesive resin cements to CAD/CAM resin blocks. Part 2: Effect of ultrasonic and acid cleaning

Kawaguchi Asuka, Matsumoto Mariko, Higashi Mami, Miura Jiro, Minamino Takuya, Kabetani Tomoshige, Takeshige Fumio, Mine Atsushi, Yatani Hirofumi

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The present study assessed the effect of ultrasonic and acid cleaning on resin cement bonding to CAD/CAM resin blocks. One of two resin cements, PANAVIA V5 (PV5) or PANAVIA SA CEMENT HANDMIX (PSA), were bonded to one of 24 CAD/CAM blocks (KATANA AVENCIA BLOCK). Each cement group was divided into four subgroups: no cleaning (Ctl), ultrasonic cleaning (Uc), acid cleaning (Ac) and Uc+Ac. Micro-tensile bond strengths (μTBSs) were measured immediately and 1, 3, and 6 months after water storage. Block surfaces after each treatment were analyzed by scanning electron microscopy. Analysis of variance revealed a statistically significant effect for the parameters ‘surface treatment’ (p<0.001, F=40), ‘resin cement’ (p<0.001, F=696) and ‘water aging’ (p<0.001, F=71). The PV5 group exhibited higher μTBS values than the PSA group. Although cleaning after sandblasting was effective in removing residual alumina particles, it did not affect the long-term bonding durability with non-contaminated CAD/CAM resin blocks.

Original languageEnglish
Pages (from-to)29-36
Number of pages8
JournalDental materials journal
Volume35
Issue number1
DOIs
Publication statusPublished - Jan 31 2016
Externally publishedYes

Keywords

  • Bond strength
  • CAD/CAM
  • Contamination
  • Resin block
  • Surface treatment

ASJC Scopus subject areas

  • Ceramics and Composites
  • General Dentistry

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