scholarly journals Evaluation of Different Irrigating Solutions on Smear Layer Removal of Primary Root Dentin

2015 ◽  
Vol 16 (3) ◽  
pp. 187-191 ◽  
Author(s):  
Hanan Balto ◽  
Fouad Salama ◽  
Sultan Al-Mofareh ◽  
Faisal Al-Yahya
Keyword(s):  
Root Canal ◽  
Ethylenediaminetetraacetic Acid ◽  
Primary Root ◽  
Ethanolic Extract ◽  
Negative Control ◽  
Smear Layer ◽  
Salvadora Persica ◽  
Layer Removal ◽  
Anterior Teeth ◽  
Root Dentin

ABSTRACT Aim To evaluate the efficacy of ethanolic extract of Salvadora persica (S. persica) and BioPure MTAD (a mixture of a tetracycline isomer, an acid, and a detergent) in removing the intracanal smear layer of primary teeth. Materials and methods The root canal of 40 extracted human primary anterior teeth were cleaned, shaped and grouped into experimental (n = 30) and control (n = 10). The root canals of the positive (n = 5) and the negative control (n = 5) were irrigated for 3 minutes with 5 ml of 17% ethylenediaminetetraacetic acid (EDTA) or saline respectively. The canals in the experimental groups were irrigated for 3 minutes with 5 ml of 1 mg/ml ethanolic extract of S. persica (n = 15) or BioPure MTAD (n = 15) and then flushed with 2 ml of saline. The presence or absence of smear layer at the coronal and middle portion of each canal were examined under a scanning electron microscope (SEM). Results A significant d ifference (p = 0 .004) i n s mear l ayer removal between S. persica and MTAD at the middle third of the canal was observed. MTAD solution was as effective as 17% EDTA in removing the smear layer. Conclusion MTAD was significantly more effective in smear layer removal than S. persica solution at the middle third of the canal wall. Clinical significance Both tested irrigant solutions have the ability to remove the intracanal smear from primary root dentin following cleaning and shaping of the root canal and could be an alternative to EDTA. How to cite this article Balto H, Salama F, Al-Mofareh S, Al-Yahya F. Evaluation of Different Irrigating Solutions on Smear Layer Removal of Primary Root Dentin. J Contemp Dent Pract 2015;16(3):187-191.

scholarly journals In Vitro Evaluation of Antibacterial Properties and Smear Layer Removal/Sealer Penetration of a Novel Silver-Citrate Root Canal Irrigant

Materials ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 194 ◽  
Author(s):  
Riccardo Tonini ◽  
Massimo Giovarruscio ◽  
Fabio Gorni ◽  
Andrei Ionescu ◽  
Eugenio Brambilla ◽  
...  
Keyword(s):  
Root Canal ◽  
Ethylenediaminetetraacetic Acid ◽  
Antibacterial Properties ◽  
Phosphate Buffer Solution ◽  
Smear Layer ◽  
Tetrazolium Salt ◽  
Apical Portion ◽  
Layer Removal ◽  
Root Canal Irrigation ◽  
Group I

This study aimed at evaluating the efficacy of a novel silver-citrate root canal irrigation solution (BioAKT) on smear layer removal, sealer penetration after root canal instrumentation and antibacterial activity. Single-root teeth were endodontically treated, sealed with an epoxi-amine resin sealer and irrigated using: Group I: 5.25% sodium hypochlorite (NaOCl); Group II: silver-citrate solution (BioAKT); Group III: phosphate buffer solution (PBS); Group IV: 17% ethylenediaminetetraacetic acid (EDTA). Smear layer removal and silver deposition at the coronal, middle and apical portion of each canal were analyzed using scanning electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDS). Sealer penetration into dentinal tubules at coronal, middle and apical portion was assessed through dye-assisted confocal microscopy (CSM). Both SEM and CSM micrographs were evaluated by two examiners (κ = 0.86), who were blind to the irrigation regimens; scores were given according to the degree of penetration of the sealer. Data analysis included Pearson’s x2 and Sidak’s multiple comparisons. Dentin discs were polished and sterilized. Enterococcus faecalis biofilms were grown using a continuous-flow bioreactor under anaerobic conditions for 72 h. Specimens were irrigated with the tested solutions, and bacterial viability was assessed using a tetrazolium salt assay (MTT). Statistical analysis included one-way ANOVA and Student’s post-hoc t-test (p < 0.05). BioAKT and EDTA were the most efficient solutions both in removing the smear layer and allowing sealer penetration. However, at the apical portion BioAKT performed significantly better compared to EDTA both in smear layer removal and sealer penetration (p < 0.05). BioAKT and NaOCl showed comparable antibacterial effect (p = 0.53). In conclusion, BioAKT represents a suitable smear layer removal agent, which allows for reliable sealer penetration at the apical portion of the root canal system and offers significant antibacterial properties.

Effect of time and ultrasonic activation on ethylenediaminetetraacetic acid on smear layer removal of the root canal

2016 ◽  
Vol 79 (11) ◽  
pp. 1062-1068 ◽  
Author(s):  
Fábio Pereira Linhares de Castro ◽  
Sérgio Luiz Pinheiro ◽  
Marco Antônio Húngaro Duarte ◽  
Jussaro Alves Duque ◽  
Samuel Lucas Fernandes ◽  
...  
Keyword(s):  
Root Canal ◽  
Ethylenediaminetetraacetic Acid ◽  
Smear Layer ◽  
Ultrasonic Activation ◽  
Layer Removal

scholarly journals ROOT CANAL IRRIGANT COMBINING SALVADORA PERSICA WITH SODIUM HYPOCHLORITE – ANTIMICROBIAL, TISSUE DISSOLUTION ,CHELATING ACTION & CHANGES IN CA/P OF ROOT DENTIN :IN VITRO STUDY

2020 ◽  
pp. 1-5
Author(s):  
Shravya S Girji ◽  
Roopa R Nadig ◽  
Veena S Pai
Keyword(s):  
Statistical Analysis ◽  
Sodium Hypochlorite ◽  
Smear Layer ◽  
Salvadora Persica ◽  
Layer Removal ◽  
Significant Difference ◽  
Root Dentin ◽  
Post Hoc ◽  
Root Canal Irrigant ◽  
Experimental Group

OBJECTIVE: Currently none of the irrigants used in endodontic therapy tested so far either alone or in combination could satisfy all criteria of ideal irrigant. Search for such a single agent which is more biocompatible along with other properties of irrigant continues. This study is aimed to evaluate pulp dissolution, antimicrobial activity, smear layer removing ability, and change in the Ca/P ratio of root dentin by using experimental formulation combining 3 % & 5 % Sodium hypochlorite with 40% Salvadora Persica & comparing it with 3 % Sodium Hypochlorite & 17%EDTA Materials and Methods: Pulp dissolution: Human pulp tissue weighing 0.9g was dissolved in each experimental group G1:3%NaOCl,G2:3%NaOCl+40% S.persica, G3: 5%NaOCl +40% S.persica and weighed after the passage time of 10 min , 20min , 30 min. The difference in weight of the tissue sample before and after exposure to the test solution was assessed. Antibacterial activity: Antimicrobial efficacy of 3% NaOCl, 3% NaOCl + 40% S.Persica,5%NaOCl + 40% S.persica as experimental group against E.fecalis was assessed using direct contact test. Statistical Analysis for both the test was carried out using Kruskal Wallis and Post Hoc Mann Whitney Analysis Smear layer removal& Ca/p ratio analysis: Single rooted premolars were divided in 3 groups (n=33) and irrigated with G1: 17% EDTA , 3% NaOCl, G2 : 3% NaOCl+ 40% S. persica, G3: 5% NaOCl + 40% S.persica. Each tooth was then split longitudinally. One half of sample from each group were subjected to scanning electron microscope to assess smear layer removal and second half for EDX analysis to check Ca/P ratio. Statistical Analysis: SEM – Kruskal Wallis and Post Hoc Mann Whitney EDX – ANOVA and Tukey’S HSD Post hoc Analysis RESULTS: • Pulp dissolution by freshly mixed G3 was superior to G1 & G2. There is no difference in pulp dissolution efficacy of G1 & G2. • No statistically significant difference was seen with respect to smear layer removal among the groups tested. EDX analysis showed significantly low Ca/P ratio for G1 compared to other groups and no statistically significant difference was seen b/w G2 &G3 • In both the time interval tested (5 min, 10min) G3 showed maximum antimicrobial efficacy followed by G1 and G2 in terms of mean value. CONCLUSION: The combined formulation of 5% NaOCl + 40 % S.Persica was most effective root canal irrigant among the groups tested in terms of pulp dissolution, antimicrobial &chelating action. 3% NaOCl + 40% Salvador persica was found to be as effective as 3% NaOCl and 17% EDTA. Experimental irrigants were found to be less erosive to root dentin in both combinations tested.

Effect of different irrigation regimens on smear layer removal in human root dentin an in-vitro study

2017 ◽  
Vol 4 (2) ◽  
pp. 31-37
Author(s):  
Neha S ◽  
◽  
Khurramuddin. M ◽  
Shekar K ◽  
Binoy Dola ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Smear Layer ◽  
Vitro Study ◽  
Layer Removal ◽  
Root Dentin

scholarly journals The Effectiveness of Three Different Plant Extracts Used as Irrigant in Removal of Smear Layer: A Scanning Electron Microscope Study

2015 ◽  
Vol 9 (1) ◽  
pp. 16-22 ◽  
Author(s):  
A Gupta ◽  
V Goyal ◽  
J Duhan ◽  
S Hans ◽  
P Sangwan
Keyword(s):  
Plant Extracts ◽  
Root Canal ◽  
Smear Layer ◽  
Ocimum Sanctum ◽  
Control Group ◽  
Syzygium Aromaticum ◽  
Distilled Water ◽  
Scanning Electron Microscope Study ◽  
Layer Removal ◽  
Scanning Electron

ABSTRACT Aim In the present study, the role of three plant extracts as irrigant in root canal cleaning after instrumentation was evaluated. The effect of Syzygium aromaticum (S. Aromaticum), Ocimum sanctum (O. Sanctum) and Cinnamomum zeylanicum (C. zeylanicum) plant extracts was evaluated in smear layer removal. Methods The study was divided into different groups having 5 teeth each using various irrigating agents to evaluate smear layer removal. Group A: O. Sanctum extract; group A1: O. Sanctum extract with EDTA, group B: S. Aromaticum extract; group B1 S. Aromaticum extract with EDTA, group C: C. zeylanicum extract; group C1 C. zeylanicum extract with EDTA and two control group of 5 teeth each in group D: 3% NaOCl; group D1 3% NaOCl with EDTA (as positive control) and group E: Distilled water (as negative control); group E1 3% Distilled water with EDTA. Each tooth was split longitudinally and prepared for examination by scanning electron microscopy. Results The herbal extracts were effective in cleaning root canal walls when combine with EDTA with maximum activity of S. Aromaticum extract with EDTA group. Conclusion Under the condition of present study the three herbal plant extracts were ineffective in removal of smear layer when used alone.

scholarly journals A Comparative Evaluation of Cleaning Efficacy (Debris and Smear Layer Removal) of Hand and Two NiTi Rotary Instrumentation Systems (K3 and ProTaper): A SEM Study

2013 ◽  
Vol 14 (6) ◽  
pp. 1028-1035
Author(s):  
Sangeetha Vallikanthan ◽  
K Balakoti Reddy ◽  
Shreemoy Dash ◽  
Sowmya Kallepalli ◽  
N Chakrapani ◽  
...  
Keyword(s):  
Root Canal ◽  
Comparative Evaluation ◽  
Group Iv ◽  
Smear Layer ◽  
Layer Removal ◽  
Group I ◽  
Rotary Instruments ◽  
Significant Difference ◽  
Sem Study ◽  
Cleaning Efficacy

ABSTRACT Objectives The present study was conducted to compare the cleaning efficacy (debris and smear layer removal) of hand and two NiTi rotary instrumentation systems (K3 and ProTaper). Materials and methods Sixty single rooted human maxillary anterior teeth decoronated at the cementoenamel junction were used. All the specimens were divided into four groups of 15 teeth each, group I—ProTaper rotary instrumentation done, group II—K3 rotary instrumentation done, group III—Stainless steel K-file instrumentation done, group IV—root canal irrigation without instrumentation. Root canal preparation was done in a crown down manner and 3% sodium hypochlorite was used as irrigant after each file followed by final rinse with 5 ml of 17% EDTA solution, then specimens were scanning electron microscopic (SEM) examination. Results Statistical analysis was done using one-way ANOVA followed by post hoc Tukey's HSD test. Group I showed highly statistical significant difference compared to other groups. There was no statistically significant difference considering smear layer at any levels among the groups with no smear layer formation in group IV. Conclusion ProTaper rotary instrumentation showed the maximum cleaning efficacy followed by K3 rotary instrumentation in the coronal, middle and apical thirds of the root canal. Clinical significance ProTaper rotary instruments are more efficient than hand and K3 rotary instruments during root canal treatment. How to cite this article Reddy KB, Dash S, Kallepalli S, Vallikanthan S, Chakrapani N, Kalepu V. A Comparative Evaluation of Cleaning Efficacy (Debris and Smear Layer Removal) of Hand and Two NiTi Rotary Instrumentation Systems (K3 and ProTaper): A SEM Study. J Contemp Dent Pract 2013;14(6):1028-1035.

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