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The effect of etching technique on the retention of adhesively cemented prefabricated dowels
Fiorella L Potesta1, James C Broome, Sandra J O'Neal
1UAB-Prosthodontics, 1919 Seventh Ave. S, R 606, SDB, Birmingham, AL 35294, USA. fpotestak@aol.com
Purpose:
To determine if etching technique influences the bond strength of resin cement to root canal dentin.
Materials And Methods:
Fifty-five extracted teeth were endodontically treated, dowel space prepared, and divided into five groups. Each group was treated with different etchant consistencies: acid gel, semi-gel, low-viscosity gel, liquid, and a self-etching primer. After dowel cementation, four sections were removed from each root and a push-out test was performed.
Results:
Significant effects were found for etching procedure and for location within the root canal. The apical segment produced the lowest bond strength. Self-etching primer showed the highest bond strength.
Conclusions:
The consistency of etchant material influenced the bond strength of a prefabricated dowel in the canal.
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