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  • Title: The effect of etching technique on the retention of adhesively cemented prefabricated dowels.
    Author: Potesta FL, Broome JC, O'Neal SJ, Givan DA, Ramp LC.
    Journal: J Prosthodont; 2008 Aug; 17(6):445-50. PubMed ID: 18573149.
    Abstract:
    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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