Year : 2012 | Volume
: 1 | Issue : 2 | Page : 116--119
Endodontic retreatment: Rotary versus hand instrumentation: An in vitro study
Sujana Varri1, Ram S Chukka1, Nagesh Bolla1, Sharat R Kavuri1, Surya Kumari2
1 Department of Conservative Dentistry, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India
2 Department of Conservative Dentistry, MNR Institute of Dental Sciences, Hyderabad, Andhra Pradesh, India
Objective: The present study has probed the effectiveness of nickel titanium rotary instruments (ProTaper) and hand instruments in the retrieval of gutta-percha and sealer using Hemo-De as a solvent.
Materials and Methods: Thirty extracted, single-rooted anterior teeth were instrumented and obturated with gutta-percha and zinc oxide sealer using the lateral condensation method. They were distributed into 3 groups of 10 each. Retreatment for group A was done using NiTi ProTaper alone, for group B using ProTaper and Hemo-De (d-limonene), and for group C using hand files with Hemo-De. The teeth were then split longitudinally into two halves. The remaining gutta-percha or sealer on the root canal wall in the cervical, middle, apical thirds, and the whole canals was visually scored with the aid of a stereo microscope.
Results: The results have showed that the mean scores in groups A and B were generally lower than those for group C. Mean scores of the apical thirds tended to be higher (worse) than the middle and cervical thirds except in group A.
Conclusion: ProTaper with or without Hemo-De seems to be a viable alternative retreatment method.
Department of Conservative Dentistry, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh
|How to cite this article:|
Varri S, Chukka RS, Bolla N, Kavuri SR, Kumari S. Endodontic retreatment: Rotary versus hand instrumentation: An in vitro study.J NTR Univ Health Sci 2012;1:116-119
|How to cite this URL:|
Varri S, Chukka RS, Bolla N, Kavuri SR, Kumari S. Endodontic retreatment: Rotary versus hand instrumentation: An in vitro study. J NTR Univ Health Sci [serial online] 2012 [cited 2019 Nov 19 ];1:116-119
Available from: http://www.jdrntruhs.org/article.asp?issn=2277-8632;year=2012;volume=1;issue=2;spage=116;epage=119;aulast=Varri;type=0