| ORIGINAL ARTICLE |
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| Year : 2006 | Volume
: 9
| Issue : 1 | Page : 36-42 |
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Comparative evaluation of the effect of two different concentrations of EDTA at two different PH and time periods on root dentin
R Sudha, VR Sukumaran, Jaya Ranganathan, Narasimha Bharadwaj
Department of Conservative Dentistry & Endodontics, Sree Balaji Dental College & Hospital Pallikkaranai, Chennai 601 302, India
Correspondence Address:
R Sudha
Department of Conservative Dentistry & Endodontics, Sree Balaji Dental College & Hospital Pallikkaranai, Chennai 601 302
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0972-0707.41307
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The aim of the study was to evaluate the effects of two different concentrations of EDTA at two different pH values for lmin & 10 min applications respectively on root dentin. 54 human maxillary incisors instrumented to size 60 to apical foramen were sectioned at the middle third (8mm sections) longitudinally into two equal mesial and distal halves. The sectioned specimens were irrigated for I and 10 min respectively using EDTA of concentrations 17% & 10% at 7.5 and 9 pH. The amount of demineralization and removal of smear layer was evaluated by phosphorus liberation, surface roughness studies and SEM analysis. Optimum results were obtained with EDTA at 10% concentration at 9 pH for 1 min. |
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