Original scientific paper
Comparison of the Bond Strengths of Zinc Phosphate, Glass-Ionomer, and Compomere Cement for Dowel Cementation
Joško Grgurević
Klara Sokler
Sebastijan Sandev
Tihomir Kuna
Zoran Ivasović
Darko Božić
Abstract
In spite of numerous previous studies, there is no final conclusion on
which type of cement is the best for dowel cementation. The purpose of this study was to compare the retention of dowels cemented with three different cement types: zinc phosphate, glass-ionomer, and compomere.
Thirty teeth were divided into 3 groups, root-canals were prepared
to ISO 140, to 7 mm depth and dowels were cemented. After 40 hours the tensile force needed to dislodge the dowels was recorded. For zinc phosphate it was 175±33.17 N, for glass-ionomer 235.5±46.93 N, and for compomere 275.63±96.42 N.
The dowels cemented with compomere had significantly higher tensile
strength than those cemented with zinc phosphate or glass-ionomer
cement. Glass-ionomer cement had significantly higher tensile strength than zinc phosphate cement. The advantages of zinc-phosphate are its low price and simple usage. Thus, in many clinical situations it may be the cement of choice.
Keywords
Hrčak ID:
3694
URI
Publication date:
15.6.2002.
Visits: 5.825 *