Post-surface conditioning improves interfacial adhesion in post/core restorations

Francesca Monticelli, Manuel Toledano, Franklin Chi Meng Tay, Alvaro H. Cury, Cecilia Goracci, Marco Ferrari

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Objectives: To verify the influence of different etching procedures of the post-surface on microtensile bond strength values between fiber posts and composite core materials. Methods: 60 DT Light Posts were divided into 10 subgroups using five different chemical surface treatments and two composite materials to build-up the abutment. Chemical surface treatments including etching with potassium permanganate; treatment with 10% hydrogen peroxide; treatment with 21% sodium ethoxide; etching with potassium permanganate and 10 vol.% HCl; silanization (control group) were performed on the post's surface. The build-up was performed using (A) Core Paste XP (Dent Mat) and (B) Unifil Flow (GC). Two samples of each group were randomly selected to investigate the morphologic aspect of the post/core interface with a scanning electron microscope (SEM). The remaining specimens were cut so as to obtain microtensile sticks that were loaded in tension at a cross-head speed of 1 mm/min until failure. The statistical analysis was performed using two-way ANOVA and the Tukey's test for post-hoc comparisons (α=0.05). Results: SEM examination showed an interpenetrating adhesion network between the treated fiber post-surface and the composite material in all the groups tested. The results achieved with potassium permanganate had a significant influence on microtensile interfacial bond strength values with both the tested materials. Post-superficial treatments enhanced the bond strength particularly of Core Paste XP. Significance: Etching procedures showed a similar effect on the post-surface and enhanced the adhesion of composite core build-ups as a result of micromechanical and chemical retention.

Original languageEnglish (US)
Pages (from-to)602-609
Number of pages8
JournalDental Materials
Volume22
Issue number7
DOIs
StatePublished - Jul 1 2006
Externally publishedYes

Fingerprint

Potassium Permanganate
Restoration
Etching
Adhesion
Ointments
Potassium
Composite materials
Electrons
Surface treatment
Electron microscopes
Scanning
Hydrogen Peroxide
Fibers
Bond strength (materials)
Analysis of Variance
Analysis of variance (ANOVA)
Head
Hydrogen peroxide
Light
Statistical methods

Keywords

  • Core build-up
  • Etching procedure
  • Fiber posts
  • Microtensile bond strength

ASJC Scopus subject areas

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials

Cite this

Post-surface conditioning improves interfacial adhesion in post/core restorations. / Monticelli, Francesca; Toledano, Manuel; Tay, Franklin Chi Meng; Cury, Alvaro H.; Goracci, Cecilia; Ferrari, Marco.

In: Dental Materials, Vol. 22, No. 7, 01.07.2006, p. 602-609.

Research output: Contribution to journalArticle

Monticelli, F, Toledano, M, Tay, FCM, Cury, AH, Goracci, C & Ferrari, M 2006, 'Post-surface conditioning improves interfacial adhesion in post/core restorations', Dental Materials, vol. 22, no. 7, pp. 602-609. https://doi.org/10.1016/j.dental.2005.05.018
Monticelli, Francesca ; Toledano, Manuel ; Tay, Franklin Chi Meng ; Cury, Alvaro H. ; Goracci, Cecilia ; Ferrari, Marco. / Post-surface conditioning improves interfacial adhesion in post/core restorations. In: Dental Materials. 2006 ; Vol. 22, No. 7. pp. 602-609.
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