Adhesive Bond Strengths Using Self- and Light-Cured Composites
Ricardo Walter, Georgia V. Macedo, Gustavo M. S. Oliveira, Edward J. Swift
Citation Information :
Walter R, Macedo GV, Oliveira GM, Swift EJ. Adhesive Bond Strengths Using Self- and Light-Cured Composites. J Contemp Dent Pract 2009; 10 (6):25-32.
To evaluate the microtensile bond strength (μTBS) of four adhesive systems to dentin, using self- and light-cured resin composites.
Methods and Materials
Crowns of human molars were separated from the roots, and the occlusal surfaces were ground to obtain flat superficial dentin. Three etch-and-rinse adhesives—All-Bond 2, One-Step Plus, and OptiBond Solo Plus—and one self-etching primer system, Peak SE, were evaluated. Each adhesive group was divided into two subgroups according to the type of resin composite used. A self-cured (Bisfil 2B) or light-cured (Filtek Supreme Plus) resin composite build-up was incrementally inserted to the dentin after each adhesive system was applied. The bonded specimens were stored in water for 24 h and sectioned into beams. Microtensile testing was done, and the data were subjected to ANOVA and Fisher's PLSD test.
Results
The μTBS of All-Bond 2 and One- Step Plus was not affected by the type of resin composite used (p=0.3131 and p=0.1562, respectively). The μTBS of OptiBond Solo Plus was significantly reduced when used with selfcured resin composite (p<0.0001). Peak SE formed no bond of self-cured resin composite to dentin.
Conclusions
Some adhesives do not effectively bond self-cured resin composite to dentin.
Clinical Significance
Incompatibility between adhesives with low pH and certain self-cured resin composites can cause clinical debonding of restorations.
Citation
Walter R, Macedo GV, Oliveira GMS, Swift Jr EJ. Adhesive Bond Strengths Using Self- and Light-Cured Composites. J Contemp Dent Pract [Internet]. 2009 Nov; 10(6):025-032. Available from: http://www.thejcdp.com/journal/ view/volume10-issue6-walter.
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