A scanning electron microscopic evaluation of four root canal irrigation regimens

1987 ◽  
Vol 13 (4) ◽  
pp. 147-157 ◽  
Author(s):  
J CRAIGBAUMGARTNER ◽  
C MADER
Keyword(s):  
Root Canal ◽  
Electron Microscopic ◽  
Canal Irrigation ◽  
Root Canal Irrigation ◽  
Microscopic Evaluation ◽  
Scanning Electron Microscopic ◽  
Scanning Electron

scholarly journals A scanning electron microscopic evaluation of different root canal irrigation regimens

2006 ◽  
Vol 20 (3) ◽  
pp. 235-240 ◽  
Author(s):  
Chaves Medici Mônika ◽  
Izabel Cristina Fröner
Keyword(s):  
Sodium Hypochlorite ◽  
Root Canal ◽  
Ricinus Communis ◽  
Smear Layer ◽  
Electron Microscopic ◽  
Canal Irrigation ◽  
Root Canals ◽  
Root Canal Irrigation ◽  
Microscopic Evaluation ◽  
Scanning Electron

The purpose of this study was to assess the effectiveness of endodontic irrigants in removing the smear layer from instrumented root canal walls using Scanning Electron Microscopy (SEM). The endodontic irrigants used were: 1% sodium hypochlorite (NaOCl); 1% NaOCl mixed to 17% EDTAC; 2% chlorhexidine gel; and Ricinus communis gel. Photomicrographs of the middle and apical thirds were evaluated with the aid of the Fotoscore - v. 2.0 software. The results indicated that the mixture of sodium hypochlorite and EDTAC completely removed the smear layer from dentinal walls. The other endodontic irrigants were not as efficient in cleansing the root canals.

A scanning electron microscopic evaluation of root canal debridement using saline, sodium hypochlorite, and citric acid

1984 ◽  
Vol 10 (11) ◽  
pp. 525-531 ◽  
Author(s):  
J. Craig Baumgartner ◽  
Carolyn M. Brown ◽  
Carson L. Mader ◽  
Donald D. Peters ◽  
Jay D. Shulman
Keyword(s):  
Citric Acid ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Electron Microscopic ◽  
Microscopic Evaluation ◽  
Scanning Electron Microscopic ◽  
Scanning Electron

A Scanning Electron Microscopic Evaluation of Root Canal Wall Cleanliness after Calcium Hydroxide Removal Using Three Irrigation Regimens

2007 ◽  
Vol 8 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Etienne Medioni ◽  
Hrant Kaloustian ◽  
Hani Fouad Ounsi ◽  
Nada Naaman-Bou Abboud ◽  
Catherine Ricci
Keyword(s):  
Citric Acid ◽  
Calcium Hydroxide ◽  
Root Canal ◽  
Smear Layer ◽  
Canal Wall ◽  
Electron Microscopic ◽  
Microscopic Evaluation ◽  
Scanning Electron Microscopic ◽  
Calcium Hydroxide Removal ◽  
Scanning Electron

Abstract Aims The aims of this in vitro study were to evaluate debris and smear layer elimination capability effectiveness of 5.25% sodium hypochlorite (NaOCl) after calcium hydroxide removal from the root canal and to determine if ethylenediaminetetraacetic acid (EDTA) and citric acid have any additional effects on debris and smear layer removal. Methods and Materials All irrigation regimens are associated with ultrasonics. Thirty-six pulpless single-rooted teeth were divided into three groups on the basis of the irrigation regimen, namely 5.25% NaOCl alone, 5.25% NaOCl with 17% EDTA pH 7 (NaOCl-EDTA), and 5.25% NaOCl with 50% citric acid (NaOCl-CA). All root canals were instrumented with the Protaper® rotary system (Dentsply-Maillefer, Ballaigues, Switzerland) using a crowndown approach. The apical foramen of each tooth was enlarged to a size 30 with a 0.09 taper. After longitudinal sectioning, the dentin walls were microphotographed using scanning electron microscopy (SEM) at a 1500X magnification. Using a grid and a 5-step scale these microphotographs were scored by three investigators in order to evaluate debris and smear layer residuals. Data were statistically evaluated using Kruskal-Wallis and Mann-Whitney tests. Results In the coronal third the lowest score obtained with NaOCl-CA was similar to NaOCl-EDTA. When using NaOCl-EDTA, mean debris scores were similar to the control group (NaOCl) and lower than NaOCl-CA in the middle and apical thirds. Regarding the mean smear layer score, NaOCl-CA was the lowest in the coronal, middle, and apical thirds with a statistically significant difference (p< 0.001). Conclusion When the total surface of the root was evaluated, NaOCl-EDTA was superior in removing debris, but the association of NaOCl-CA enabled the most effective removal of the smear layer. Citation Naaman A, Kaloustian H, Ounsi HF, Naaman-Bou Abboud N, Ricci C, Medioni E. A Scanning Electron Microscopic Evaluation of Root Canal Wall Cleanliness after Calcium Hydroxide Removal Using Three Irrigation Regimens. J Contemp Dent Pract 2007 January;(8)1:011-018.

scholarly journals Scanning Electron Microscopic Evaluation of Root Canal Walls after shaping with Different Single-use Rotary Systems

2016 ◽  
Vol 5 (2) ◽  
pp. 93-98
Author(s):  
Alberto Dagna ◽  
Riccardo Beltrami ◽  
Stefano Bianchi ◽  
Claudio Poggio ◽  
Giulia Gastaldo
Keyword(s):  
Analysis Of Variance ◽  
Root Canal ◽  
Statistical Tests ◽  
Smear Layer ◽  
Electron Microscopic ◽  
Root Canals ◽  
Microscopic Evaluation ◽  
Scanning Electron Microscopic ◽  
Single Use ◽  
Scanning Electron

ABSTRACT The aim of the present study was to investigate the cleaning efficacy of four new single-use rotary nickel–titanium (NiTi) systems. A total of 48 single-rooted freshly extracted teeth were divided into four groups. Root canals were shaped with the single-use NiTi systems (ProTaper Next, F360, OneShape and F6 SkyTaper) using 5.25% NaOCl and 17% ethylenediaminetetraacetic acid (EDTA) solutions. Specimens were fractured longitudinally and prepared for scanning electron microscopic (SEM) analysis at standard magnification of 2,500?. The presence/absence of debris smear layer and smear layer at coronal, middle, and apical third of each canal were evaluated using a five-step scale for scores. Numeric data were analyzed using Kruskal–Wallis and Mann–Whitney U statistical tests and significance was predetermined at p< 0.05. Analysis of variance test showed no significant differences among the NiTi systems (p > 0.05). The same results were assessed considering the smear layer scores. Analysis of variance confirmed that the apical third of the canal maintained a higher quantity of debris and smear layer after preparation of all the samples. All the single-use rotary NiTi systems left dentinal walls generally free of debris, even if a small amount of smear layer is visible, especially in the apical third of the root canal. All tested single-use systems seem to be effective in removing smear layer from root canals, if irrigating protocols are respected. How to cite this article Dagna A, Gastaldo G, Beltrami R, Bianchi S, Poggio C. Scanning Electron Microscopic Evaluation of Root Canal Walls after shaping with Different Single-use Rotary Systems. Int J Experiment Dent Sci 2016;5(2):93-98.

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