Influence of passive ultrasonic irrigation on the efficiency of various irrigation solutions in removing smear layer: a scanning electron microscope study

Koçak, Sibel; Bağcı, Nur; Çiçek, Ersan; Türker, Sevinç Aktemur; Sağlam, Baran Can; Koçak, Mustafa Murat

doi:10.1002/jemt.22829

Cited by 19 publications

(28 citation statements)

References 27 publications

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“…Some studies have demonstrated that the use of a chelating solution alone has limited capacity for removing the smear layer and debris present in the canals after RCP. 15,22,23 These findings partly corroborated those of the present study; however, the results here found pointed out significant advantage of the use of activation methods, more specifically in cleaning the apical thirds and in more widened canals. In the case of the less widened canals, no cleaning method, whether the use of EDTA solely, or by means of its activation, was able to produce results similar to those offered by C+.…”

Section: Discussionsupporting

confidence: 91%

Evaluation of Influence of Widening Apical Preparation of Root Canals on Efficiency of Ethylenediaminetetraacetic Acid Agitation Protocols: Study by Scanning Electron Microscopy

Marques¹,

Aguiar²,

Frota³

et al. 2018

The Journal of Contemporary Dental Practice

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Aim:The purpose of this study was to evaluate the influence of widening the apical root canal preparation (RCP) on the efficiency of different ethylenediaminetetraacetic acid (EDTA) agitation protocols on smear layer removal: EDTA; EDTA + Easy Clean in rotary movement (ECROT); EDTA + Easy Clean in reciprocating movement (ECREC); and EDTA + Passive ultrasonic irrigation (PUI). Materials and methods:A total of 80 mandibular premolars had their crowns sectioned and then were divided into two groups according to widening: size 25 or 40, 0.08 taper. Sequentially they were once again allocated to subgroups according to the agitation protocol performing eight experimental groups (n = 10). Ten additional teeth were prepared for controls (C+/C−). The specimens were then submitted to the cleaning protocols and thereafter cleaved and microphotographed by variable pressure scanning electron microscopy (SEM) at previously determined points along their root thirds (750×). Scores were attributed to the images, and data were analyzed by the Kruskal-Wallis, Student-Newman-Keuls and Friedman tests. Results:A higher widening was observed to have a positive influence on cleaning efficiency offering significant differences in global and apical third evaluations (p < 0.05). Relative to the agitation, significant differences were observed mainly in the apical third, with PUI and ECROT providing the best results (p < 0.05); no difference for C+ was observed when higher widening was employed. Conclusion:A greater widening of the apical third provided a significant improvement in the action of the agitation/activation protocols. Moreover, the PUI and ECROT activation methods were shown to be superior to the use of EDTA solely, particularly in the apical third. Clinical significance:The findings of this study reinforce the need for clinical use of additional methods to complement cleaning. Therefore, it is important for professionals to have knowledge and command of these protocols to obtain more satisfactory results.

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Section: Discussionsupporting

confidence: 91%

Evaluation of Influence of Widening Apical Preparation of Root Canals on Efficiency of Ethylenediaminetetraacetic Acid Agitation Protocols: Study by Scanning Electron Microscopy

Marques¹,

Aguiar²,

Frota³

et al. 2018

The Journal of Contemporary Dental Practice

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“…Although SEM evaluation is known for being subjective due to its dependency on operator, to minimize this observer bias, SEM images were obtained from equidistant points of each root canal third similar to previous studies (Ayranci et al, ; Zhu et al, ). Despite the fact that SEM images are obtained at different magnifications in our study, observers scored SEM images at 1000× magnification similarly to several previous studies (Arslan et al, ; Castagna et al, ; Kocak et al, ; Sahar‐Helft et al, ; Turkel et al, ; Zhu et al, ). It is well known that smear‐free dentin regions are selected by SEM operators (Hülsmann, Peters, & Dummer, ).…”

Section: Discussionmentioning

confidence: 52%

“…Despite the fact that SEM images are obtained at different magnifications in our study, observers scored SEM images at 1000× magnification similarly to several previous studies Castagna et al, 2013;Kocak et al, 2017;Sahar-Helft et al, 2015;Turkel et al, 2017;Zhu et al, 2013). It is well known that smear-free dentin regions are selected by SEM operators (Hülsmann, Peters, & Dummer, 2005).…”

Section: Discussionmentioning

confidence: 82%

Effect of several laser systems on removal of smear layer with a variety of irrigation solutions

Özbay¹,

Erdemir

2018

Microscopy Res & Technique

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To evaluate which laser system is more effective on smear layer removal when distilled water or combination of sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic acid (EDTA) are used as irrigants. Ninety‐six human mandibular premolar teeth were used. Standard access cavities were prepared and the root canals were enlarged using ProTaper system to size F4 and divided into two equal groups according to final irrigation solution. In Group 1, distilled water was used, whilst 2.5% NaOCI and 17% EDTA solutions were used in Group 2. Each group was divided into four equal subgroups according to the activation procedure. In Subgroups 1A (Control) and 2A, no activation protocol was applied. In other subgroups, Er:YAG laser using photon‐induced photoacoustic streaming (PIPS; 1B and 2B), Nd:YAG laser (1C and 2C) and Er,Cr:YSGG laser (1D and 2D) were applied for the activation. Teeth were split longitudinally and subjected to scanning electron microscopy evaluation. Smear layer was scored at 1000× magnification in all thirds. The data were analysed statistically using Kruskal‐Wallis and Mann–Whitney U test post hoc comparisons. The samples irrigated with distilled water had greater smear layer scores when compared with the combination of NaOCl and EDTA (p < .05). The efficacy of smear layer removal increased when using laser systems (p < .05). Smear layer was removed more effectively in the coronal and middle levels compared to the apical level (p < .05). The sequential use of NaOCl and EDTA is significantly more effective than distilled water in smear layer removal. Regardless of the type of irrigant, laser activated irrigation enhances smear layer removal. Research Highlights The use of laser systems for activation of NaOCl and EDTA is the most effective method in terms of smear layer removal. Photon‐induced photoacoustic streaming technique with Er:YAG laser was the most efficient smear layer removal method regardless of the solution used.

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“…O mesmo foi encontrado, em um estudo comparando a eficácia de diferentes soluções irrigadoras quando da irrigação clássica com seringa e irrigação passiva ultrassô-nica (PUI). Os resultados demonstraram que PUI aumentou a capacidade de remoção de smear layer, para todas soluções avaliadas, inclusive o EDTA, quando comparado à irrigação clássica 58 . Trabalhos [59][60][61] registraram que tanto o EDTA, EDTA-T e o ácido cítrico foram eficazes quando usados em menor espaço de tempo, sem contudo, causar danos a estrutura dentinária.…”

Section: Discussionunclassified

“…Uma nova proposta de ativação do EDTA, por meio da utilização de LASER de baixa potência, também foi avaliada 27,58,[65][66][67][68][69] . Verificou-se que o uso de LA-SER de diodo de baixa potência associado ao EDTA e ao NaOCl diminuíram a quantidade de smear layer, de todas as paredes do canal radicular.…”

Section: Discussionunclassified

A eficácia da solução de EDTA na remoção de smear layer e sua relação com o tempo de uso: uma revisão integrativa

Mafra¹,

Girelli²,

Xavier³

et al. 2017

Rev. da Fac. de Odontologia, UPF

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A eficácia da solução de EDTA na remoção de smear layer e sua relação com o tempo de uso: uma revisão integrativa IntroduçãoO sucesso do tratamento endodôntico está intimamente relacionado à qualidade da limpeza e desinfecção do sistema de canais radiculares (SCR), obtido por meio da eliminação ou pelo menos redução do conteúdo orgânico e inorgânico contaminado do interior dos canais 1,2 . Para atingir tais objetivos, os canais são submetidos ao preparo químico mecâ-nico (PQM).O PQM é considerado um requisito chave para o sucesso da terapia endodôntica, uma vez que consiste na limpeza e modelagem -clean and shape-do

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Influence of passive ultrasonic irrigation on the efficiency of various irrigation solutions in removing smear layer: a scanning electron microscope study

Cited by 19 publications

References 27 publications

Evaluation of Influence of Widening Apical Preparation of Root Canals on Efficiency of Ethylenediaminetetraacetic Acid Agitation Protocols: Study by Scanning Electron Microscopy

Evaluation of Influence of Widening Apical Preparation of Root Canals on Efficiency of Ethylenediaminetetraacetic Acid Agitation Protocols: Study by Scanning Electron Microscopy

Effect of several laser systems on removal of smear layer with a variety of irrigation solutions

A eficácia da solução de EDTA na remoção de smear layer e sua relação com o tempo de uso: uma revisão integrativa

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