Abstract.
The effect of pre-treatment of composite inlays on bonding performance between a resin composite inlay and a luting composite has not been fully studied. The aim of the present study was to evaluate the influence of three different pre-treatment modes on fatigue bond strength and marginal adaptation. One hundred twenty resin composite discs (Tetric Ceram) were made as simulated inlays and randomly assigned to four groups (n=30): Without treatment (WT), hyrdofluoric acid etching for 15 s + silanating (HF), roughening with a silicon carbide bur (SC), and silica coating + silanating (CO). Luting composite cylinders (Variolink II low) were bonded to the discs using Heliobond, and after 24 h in water at 37°C, quasistatic shear bond strengths (n=1) and fatigue bond strengths (n=20; 5,000 cycles) were measured. Thirty-two third molars received occlusomesial Class II cavities (n=8), and direct resin composite inlays were luted with identical methods and materials. Before and after thermomechanical loading (100,000×50 N, 2,500 x +5°C/+55°C), replicas were made and examined (SEM, ×200). CO and SC exhibited significantly higher bond strengths and adhesive fatigue limits than HF and WT (P<0.05). After thermomechanical loading, CO (98% continuous margin) and SC (95% continuous margin) demonstrated that they provide significantly more fatigue resistance than HF (88%).
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Electronic Publication
Rights and permissions
About this article
Cite this article
Frankenberger, R., Strobel, W.O., Baresel, J. et al. Effect of surface treatment on fatigue behaviour between Tetric Ceram inlays and Variolink luting composite. Clin Oral Invest 5, 260–265 (2001). https://doi.org/10.1007/s00784-001-0138-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00784-001-0138-z