@article{MAKHILLJEAS2020151219339,
    title = {echanical Properties of New Cement-Based Capping Material Prepared from Egg Shell and
Chitosan},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {15},
    number = {12},
    pages = {2599-2603},
    year = {2020},
    issn = {1816-949x},
    doi = {jeasci.2020.2599.2603},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2020.2599.2603},
    author = {Hemn and},
    keywords = {Egg shell and biopolymer (chitosan),compressive strength,eggshell},
    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.}
    }