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Measurement of strain on tooth roots during post removal with the Eggler post remover by T. V. Castrisos; J. E. A. Palamara; P. V. Abbott is a Dentistry article available to read on EtoBox.

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## Abstract Castrisos T, Palamara JEA, Abbott PV. Measurement of strain on tooth roots during post removal with the Eggler post remover. __International Endodontic Journal__, **35**, 337–344, 2002. **Aim** The aim was to measure root surface strains in teeth when removing cast post/cores with the Eggler post remover. **Methodology** Two groups of 10 teeth each were tested: group 1 had 1 mm thickness of dentine coronally, and group 2 had 2 mm thickness of dentine. After root filling, 10 mm long cast post/cores were constructed and cemented with zinc phosphate cement, and strain gauges were applied to the roots. The post/cores were removed with the Eggler post remover whilst strain measurements were being recorded. Posts were removed twice: initially along the long axis of the tooth and then at a 10° angle to the long axis. Comparisons between groups 1 and 2 were analysed statistically with the Mann–Whitney __U__‐test whilst strains within each group were analysed with the Wilcoxon Signed Rank test at the 95% level of confidence. **Results** There was no significant difference in the strains measured between groups 1 and 2, and no significant difference within each group when removin

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Author

T. V. Castrisos; J. E. A. Palamara; P. V. Abbott

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0143-2885)

Published

2002

Language

EN

Field

Dentistry (Health Sciences)