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ORIGINAL ARTICLE
Year : 2018  |  Volume : 5  |  Issue : 2  |  Page : 84-89

In vitro comparative assessment of cleaning working time efficiency between hand and rotary instrumentation in endodontic retreatment


Dental Department, Security Forces Hospital, Riyadh, Saudi Arabia

Correspondence Address:
Musaed Al-Tammami
Dental Department, Security Forces Hospital, Riyadh
Saudi Arabia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sjos.SJOralSci_59_17

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Aims and Objectives: The aim is to compare the time taken to perform two endodontic retreatment techniques by three dental interns and endodontist, and in addition, to assess the leftovers of endodontic material left after the treatment by both interns and endodontists. This will help us to make a conclusion based on our research and provide recommendations to increase productivity and efficiency in dental procedures by youngsters. Materials and Methods: A total of 80 extracted noncarious human teeth with straight canal with fully formed apices which were previously obturated were chosen. Teeth were randomly divided into two main groups and then subdivided further into three groups of interns (Group A) and one group of endodontist (Group B). Retreatment was performed using hand files and rotary system with and without chloroform. Radiovisiograph was taken before, and then time was calculated. The remaining gutta-percha or sealer on the root canal wall was visually scored with the aid of an endomicroscope. Results: The mean times obtained (in min) were analyzed using one-way analysis of variance, which revealed no statistically significant difference between the working time utilized for retreatment and the examiners (P < 0.05). Two-way cross-tabulation showed endodontist was more likely to remove the obturating material completely from the root canal than dental interns. Chi-square test showed this association to be statistically significant (P < 0.05). Conclusions: Although there was no statistically significant difference between the working time, all methods left remnants of obturating material on the canal walls which showed significant disparity among Group A and Group B. However among all groups, endodontists removed the remnants completely.


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