| Autor: |
Capar, Ismail, Gok, Tuba, Orhan, Ezgi |
| Předmět: |
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| Zdroj: |
Clinical Oral Investigations; Dec2015, Vol. 19 Issue 9, p2219-2222, 4p, 1 Chart |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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