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Clinical Oral Investigations

Published in:

01-12-2015 | Original Article

Comparison of retreatment ability of full-sequence reciprocating instrumentation and 360° rotary instrumentation

Authors: Ismail Davut Capar, Tuba Gok, Ezgi Orhan

Published in: Clinical Oral Investigations | Issue 9/2015

Abstract

Objectives

The purpose of the present study was to investigate the amount of root canal filling material after root canal filling removal with 360° rotary instrumentation or reciprocating motion with the same file sequence.

Materials and methods

Root canals of the 36 mandibular premolars were shaped with ProTaper Universal instruments up to size F2 and filled with corresponding single gutta-percha cone and sealer. The teeth were assigned to two retreatment groups (n = 18): group 1 360° rotational motion and group 2 reciprocating motion of ATR Tecnika motors (1310° clockwise and 578° counterclockwise). Retreatment procedure was performed with ProTaper Universal retreatment files with a sequence of D1-3 and ProTaper Universal F3 instruments. Total time required to remove filling material were recorded. Remaining filling material was examined under stereomicroscope at ×8 magnification. The data were analysed statistically using the Mann–Whitney U test, and testing was performed at 95 % confidence level (p < 0.05).

Results

There were no significant differences between the groups (p > 0.05) in terms of remaining filling material. The total time required for retreatment was shorter in 360° rotational motion group compared to reciprocating motion group (p < 0.05).

Conclusion

Both continuous rotation and reciprocating motion showed similar effectiveness in terms of root canal filling material removal.

Clinical relevance

Using ProTaper Universal retreatment instruments with reciprocating motion of ATR motor and conventional rotary motion have similar efficacy in root canal filling removal.

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Title: Comparison of retreatment ability of full-sequence reciprocating instrumentation and 360° rotary instrumentation
Authors: Ismail Davut Capar
Tuba Gok
Ezgi Orhan
Publication date: 01-12-2015
Publisher: Springer Berlin Heidelberg
Published in: Clinical Oral Investigations / Issue 9/2015
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-015-1461-0

At a glance: The STEP trials

Springer Medicine

Comparison of retreatment ability of full-sequence reciprocating instrumentation and 360° rotary instrumentation

Abstract

Objectives

Materials and methods

Results

Conclusion

Clinical relevance

At a glance: The STEP trials

Springer Medicine

Abstract

Objectives

Materials and methods

Results

Conclusion

Clinical relevance

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