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- Title
Effects of different sulfuric acid etching concentrations on PEEK surface bonding to resin composite.
- Authors
Pisaisit CHAIJAREENONT; Sasiprapha PRAKHAMSAI; Patcharawan SILTHAMPITAG; Hidekazu TAKAHASHI; Mansuang ARKSORNNUKIT
- Abstract
This study evaluated the effects of surface pretreatment with different concentrations of sulfuric acid etching on surface properties and bonding between Polyetheretherketone (PEEK) and a resin composite. Six groups of surface pretreatment (no pretreatment, etched with 70, 80, 85, 90, and 98% sulfuric acid for 60 s) were treated on PEEK. Surface roughness, scanning electron microscopy (SEM) and atomic force microscopy (AFM) analyses were examined. Shear bond strength (SBS) and cross-sectional observations of the interfaces were performed. One-way ANOVA analysis revealed differences in surface roughness and SBS between groups. The 90 and 98% sulfuric acid etching significantly achieved the highest SBS (p<0.05). SEM and AFM demonstrated etched surfaces with wide and deep pores. The 90 and 98% sulfuric acid etching were suggested to be the optimal concentration to improve adhesion between PEEK and the resin composite.
- Subjects
SULFURIC acid; CHEMICAL bonds; SURFACE roughness; ATOMIC force microscopy; SCANNING electron microscopy
- Publication
Dental Materials Journal, 2018, Vol 37, Issue 3, p385
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2017-141