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A comparative in vitro study of different techniques for removal of fibre posts from root canals
Author(s) -
Haupt Franziska,
Pfitzner Jana,
Hülsmann Michael
Publication year - 2018
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/aej.12230
Subject(s) - root canal , dentistry , materials science , statistical analysis , gutta percha , orthodontics , mathematics , medicine , statistics
This study evaluates the effectiveness of different techniques to remove fibre posts from root filled teeth in vitro . One hundred and fifty‐three extracted single‐rooted teeth were decoronated, root‐canal treated and divided into three groups ( n = 51). Post spaces were prepared for different types of fibre posts: glass fibre, quartz fibre, carbon fibre. Each group was divided into three subgroups with regard to the post removal technique ( n = 17): SonicFlex Endo, long‐shaft round bur, DT ‐Post removal kit. Residual material, loss of dentine, working time and procedural errors were assessed using computed tomography. Statistical analysis was performed with a one‐way anova (α = 0.05). The highest effectiveness was achieved with the sonic tip and the round bur. A high prevalence of perforations or severe deviations from the root axis was observed for all groups. No technique presented favourable results in all assessed parameters. There is a high risk of perforations.