Mechanical Properties of New Cement-Based Capping Material Prepared from Egg Shell and Chitosan

Abstract: The aim of this study was to evaluate the compressive strength of newly prepared cement-based capping material and biopolymer (Chitosan). The cement was prepared from egg shells and a biopolymer (chitosan), to provide compressive strength. Thirty samples were prepared and their dimensions according to American Dental Association (ADA) specification No.30 were 6 mm in height and 4 mm in diameter. Ten experimental cement samples, 10 glass ionomer cement samples and 10 biodent in samples were used. The compressive strength of the formula of 1spoon of experimental powder with 8 drops of the solution and 1drop chitosan with 8 drops polyphosphonoic acid was 25.60±0.515 MPa which was higher than that of the other formulae. Within the limitations of the experimental methods used in the present study, the cement-based capping material prepared from egg shells and the biopolymer chitosan shows an acceptable compressive strength property.