ROOT REINFORCEMENT USING CAST POST CEMENTED WITH DIFFERENT TYPES OF CEMENTS
DOI:
https://doi.org/10.32828/mdj.v3i2.624Keywords:
Keywords: Casts post, Resin cement,Resin-modified glass ionomer cement.Abstract
The purpose of this in-vitro study is to evaluate and compare the fracture
resistance of endodontically treated teeth restored using cast posts cemented with
different types of cement. Thirty intact human maxillary central incisors were selected
for this study. The crowns were removed and endodontic therapy were done on the
roots, which were then prepared to receive cast posts, after their fabrication, the cast
posts were cemented with zinc phosphate cement (group I), resin modified glass
ionomer cement (group II),and resin cement (group III). The samples were subjected
to compressive fracturing loads by a Zwick testing machine at a cross head speed of
5mm/min., with an angle of 45º to the long axis of the tooth. The results showed that
the posts cemented with resin cement exhibited the highest mean failure load followed
by posts cemented with resin modified glass ionomer cement , while posts cemented
with zinc phosphate cement exhibited the lowest mean failure load.
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