scanning electron microscopic evaluation of smear layer removal using isolated or interweaving edta with sodium hypochlorite
نویسندگان
چکیده
introduction: the aim of this study was to verify the effect of alternating 2.5% sodium hypochlorite (naocl) and 17% ethylenediaminetetraacetic acid (edta) on the smear layer removal from root canal surfaces. methods and materials: a total of 15 single-rooted human teeth, instrumented with protaper files, were randomly distributed in 3 groups. in group 1 ( n =7) the canals were irrigated with 1 ml of 2.5% naocl between files and final irrigation was done with 1 ml of 2,5% naocl, followe by 1 ml of 17% edta, for a perio of 15 sec with new irrigtion of 1 ml of 2,5% naocl at each change of files. in group 3 (control group) ( n =1), saline solution was used. all samples were cleaved into two sections, metalized and analyzed under scanning electron microscopy (sem). the presence or absence of smear layer in the cervical, middle and apical thirds, with scores varying from 1 to 3, respectively were evaluated. the data were submitted to nonparametric mann-whitney u test. the level of significance was set at 0.05. results: it was observed that there was a greater discrepancy between groups with respect to the apical third. in the other areas there was a greater similarity between the scores attributed to the groups. there was a statistically significant difference between the groups only in the apical third, when group 1 presented the higher median ( p <0.05). conclusion: the alternating use of edta during instrumentation with naocl was the most effective irrigation method to remove the apical smear layer. both forms of irrigation were effective on removal of the smear layer in the coronal and middle thirds of the canals.
منابع مشابه
Scanning Electron Microscopic Evaluation of Smear Layer Removal Using Isolated or Interweaving EDTA with Sodium Hypochlorite
INTRODUCTION The aim of this study was to verify the effect of alternating 2.5% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA) on the smear layer removal from root canal surfaces. METHODS AND MATERIALS A total of 15 single-rooted human teeth, instrumented with ProTaper files, were randomly distributed in 3 groups. In group 1 (n=7) the canals were irrigated with 1 m...
متن کاملA comparative scanning electron microscopy evaluation of smear layer removal with apple vinegar and sodium hypochlorite associated with EDTA
OBJECTIVE The purpose of this study was to evaluate by scanning electron microscopy (SEM) the removal of smear layer from the middle and apical root thirds after use of different irrigating solutions. MATERIAL AND METHODS Forty roots of permanent human teeth had their canals instrumented and were randomly assigned to 4 groups (n=10), according to the irrigating solution: apple vinegar (group ...
متن کاملEvaluation of Smear Layer Removal by A New EDTA Formula on Root Canal Dentin : A Scanning Electron Microscopic Study
متن کامل
the effect of fragaria vesca extract on smear layer removal: a scanning electron microscopic evaluation
introduction: successful endodontic treatment depends on elimination of the microorganisms through chemomechanical debridement. the aim of this in vitro study was to evaluate the effectiveness of fragaria vesca (wild strawberry) extract (fve) on the removal of smear layer (sl). methods and materials: in this analytical-observational study, 40 extracted mandibular and maxillary human teeth were ...
متن کاملThe Effect of Fragaria vesca Extract on Smear Layer Removal: A Scanning Electron Microscopic Evaluation
INTRODUCTION Successful endodontic treatment depends on elimination of the microorganisms through chemomechanical debridement. The aim of this in vitro study was to evaluate the effectiveness of Fragaria vesca (wild strawberry) extract (FVE) on the removal of smear layer (SL). METHODS AND MATERIALS In this analytical-observational study, 40 extracted mandibular and maxillary human teeth were ...
متن کاملthe effect of preparation size on efficacy of smear layer removal; a scanning electron microscopic study
introduction: enlargement of the root canal may potentially affect efficient smear layer (sl) removal. the aim of the present in vitro study was to compare sl removal following canal preparation with two different sizes/tapers by means of scanning electron microscopy (sem). methods and materials: a total of 50 extracted human mandibular premolars were decoronated. the teeth were randomly divide...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
iranian endodontic journalجلد ۱۲، شماره ۱، صفحات ۵۵-۵۹
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023