Various effects of sandblasting of dental restorative materials

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Sandblasting particles which remain on the surfaces of dental restorations are removed prior to cementation. It is probable that adhesive strength between luting material and sandblasting particle remnants might exceed that with restorative material. If that being the case, blasting particles adhere to sandblasted material surface could be instrumental to increasing adhesive strength like underlying bonding mechanism between luting material and silanized particles of tribochemical silica coating-treated surface. We hypothesize that ultrasonic cleaning of bonding surfaces, which were pretreated with sandblasting, may affect adhesive strength of a resin luting material to dental restorative materials. Methods: We therefore observed adhesive strength of resin luting material to aluminum oxide was greater than those to zirconia ceramic and cobalt-chromium alloy beforehand. To measure the shear bond strengths of resin luting material to zirconia ceramic and cobalt-chromium alloy, forty specimens of each restorative material were prepared. Bonding surfaces were polished with silicon abrasive paper and then treated with sandblasting. For each restorative material, 40 sandblasted specimens were equally divided into two groups: ultrasonic cleaning (USC) group and non-ultrasonic cleaning (NUSC) group. After resin luting material was polymerized on bonding surface, shear test was performed to evaluate effect of ultrasonic cleaning of bonding surfaces pretreated with sandblasting on bond strength. Results: For both zirconia ceramic and cobalt-chromium alloy, NUSC group showed significantly higher shear bond strength than USC group. Conclusions: Ultrasonic cleaning of dental restorations after sandblasting should be avoided to retain improved bonding between these materials.

Original languageEnglish
Article numbere0147077
JournalPLoS One
Volume11
Issue number1
DOIs
Publication statusPublished - Jan 1 2016

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Dental materials
Dental Materials
Ultrasonics
Chromium Alloys
Adhesives
Ultrasonic cleaning
Ceramics
cleaning
Shear Strength
ultrasonics
adhesives
Tooth
resins
ceramics
cobalt
Resins
Cementation
chromium
shears
Aluminum Oxide

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Various effects of sandblasting of dental restorative materials. / Nishigawa, Goro; Maruo, Yukinori; Irie, Masao; Maeda, Naoto; Yoshihara, Kumiko; Nagaoka, Noriyuki; Matsumoto, Takuya; Minagi, Shougo.

In: PLoS One, Vol. 11, No. 1, e0147077, 01.01.2016.

Research output: Contribution to journalArticle

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