Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2011  |  Volume : 14  |  Issue : 3  |  Page : 237-240

Histological analysis of cleaning efficacy of hand and rotary instruments in the apical third of the root canal: A comparative study


1 Department of Conservative Dentistry and Endodontics, PDM Dental College, Bahadurgarh, Haryana, India
2 Department of Conservative Dentistry and Endodontics, Santosh Dental College and Hospital, Ghaziabad, Uttar Pradesh, India

Correspondence Address:
Ashtha Arya
B-8, Opp. Arora Departmental Store, Vijay Park, Najafgarh, New Delhi - 110 043
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.85797

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Aim: To compare the cleaning efficiency of manual and rotary instrumentation in the apical third of the root canal system. Materials and Methods: In group 1 (n=10), instrumentation was performed with stainless steel K-file; in group 2 (n=10), it was done with hand ProTaper files; and in group 3 (n=10), instrumentation was done with ProTaper rotary. Distilled water was used for irrigation. The apical third was sectioned transversally and histologically processed. The cross sections were examined under optic microscope and debris was measured using Motic software. Results: Instrumentation with stainless steel K-files showed minimum amount of debris, followed by ProTaper hand files, and rotary ProTaper files were least effective with maximum amount of debris; however, there were no significant differences between the three experimental groups. Conclusions: Both the manual and rotary instrumentation are relatively efficient in cleaning the apical third of the root canal system and the choice between manual and rotary instrumentation should depend on case to case basis.


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