A Comparative Study of Luting Metal Posts and Cores with Different Kind of Cements

Abstract

Aim of the study: The aim of this study was to compare four types of cement used to cementation metal posts and cores, namely zinc phosphate cement, polycoxylate cement, glass ionomer cement and resin cement.

Materials and Methods: A total of 40 root canals were prepared for the upper teeth with uniform dimensions using pesos. The post was 7 mm in length and 3 mm in diameter. After waxing and casting, the posts were cemented by one of the  used cements, and all roots were immersed in acrylic bases. Tensile strength tests were conducted by the General Energy Test Laboratory located in the Faculty of Mechanical Engineering.

Results: The sample was divided into four groups, each containing 10 metal posts and cores. Each group was cemented by a different cement type. The Bonferroni analysis showed that the resin cement was the strongest in adhesion compared to the other three cement.

Conclusion: We conclude that resin cement is the best type used to cement casted post and core.