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The effect of post adaptation in the root canal on retention of posts cemented with various cements
Author(s) -
Chan Frank W.,
Harcourt John K.,
Brockhurst Peter J.
Publication year - 1993
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1993.tb05449.x
Subject(s) - cement , dental cement , glass ionomer cement , ultimate tensile strength , materials science , dentistry , root canal , zinc phosphate , cementation (geology) , composite material , medicine , adhesive , layer (electronics) , coating
This laboratory study compared the retention of prefabricated posts in well‐fitting and loose‐fitting post canals using different cement materials. Eighty‐three human teeth were prepared for post placement. One of zinc phosphate cement, polycarboxylate cement, glass ionomer cement or resin cement was used to cement each post in place. A tensile force was applied to remove each post and the separation force was recorded. Posts cemented with the resin cement were the most difficult to dislodge. Posts cemented into loose‐fitting canals exhibited greater resistance to dislodgement than posts cemented into well‐fitting canals irrespective of the type of cements used.