Effect of passive ultrasonic irrigation and manual dynamic irrigation on smear layer removal from root canals in a closed apex <i>in vitro</i> model

Andrabi, Syed Mukhtar-Un-Nisar; Kumar, Ashok; Zia, Afaf; Iftekhar, Huma; Alam, Sharique; Siddiqui, Shiraz

doi:10.1111/jicd.12033

Cited by 29 publications

(29 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…G2, G5, and G6 showed no significant difference among their scores. Similar to the others studies (Andrabi et al, ; Castagna et al, ) the agitation of the EDTA solution with ultrasound did not increase the efficiency of smear layer removal, but other authors found different results (Arslan et al, ; Capar & Aydinbelge, ; Kuah et al, ). The different results found may be related to the use of human teeth and the modeling of the canal of instruments with smaller diameter.…”

Section: Discussionsupporting

confidence: 82%

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

Castro

Pinheiro

Duarte

et al. 2016

Microsc. Res. Tech.

View full text Add to dashboard Cite

The aim of this study was to assess the effect of time and the ultrasonic activation of ethylenediaminetetraacetic acid (EDTA) in removing the smear layer of at root canal. A total of 60 bovine inferior incisors were transversely sectioned and instrumented; A smear layer was added in the root dentin surface. The specimen were then divided into six groups according to the following final irrigation protocols: Group (G) 1: conventional irrigation with sodium hypochlorite (NaOCl); G2: conventional irrigation with NaOCl + EDTA for 20 s; G3: conventional irrigation with NaOCl + EDTA for 60 s; G4: passive ultrasonic irrigation (PUI) with NaOCl; G5: PUI with NaOCl + PUI with EDTA for 20 s; G6: PUI + NaOCl and PUI with EDTA for 60 s. Samples were analyzed by scanning electron microscope (SEM) at ×500 increase. The images were measured by three blinded evaluators and classified in scores ranging from 1 to 5. The results were analyzed by the Pearson correlation test and the ANOVA nonparametric Kruskal-Wallis and Dunn's tests were used for the comparisons. Irrigated samples only with NaOCl (G1 and G4) had higher scores when compared with other groups. G5 and G6, irrigated with 17% EDTA and ultrasonic irrigation had lower scores. However, there was no statistically significant difference in G2 and G3, where there was no irrigation. It was concluded that irrigation with 17% EDTA for 20 s promoted the effective removal of smear layer, regardless of ultrasonic irrigation.

show abstract

Section: Discussionsupporting

confidence: 82%

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

Castro

Pinheiro

Duarte

et al. 2016

Microsc. Res. Tech.

View full text Add to dashboard Cite

show abstract

“…Furthermore, it has been reported that the efficacy of PUI can be positively associated with ultrasonic intensity by regulating the amplitude of the file (9). Nonetheless, others have pointed out that PUI might be more complicated, dangerous and expensive than manual dynamic irrigation, based on the results of a study using an in vitro apex model (10). Considering these disagreements regarding the application of PUI, more research on its benefits and disadvantages should be encouraged.…”

Section: Introductionmentioning

confidence: 99%

Comparison between ultrasonic irrigation and syringe irrigation in clinical and laboratory studies

et al. 2016

View full text Add to dashboard Cite

Ultrasonic irrigation and syringe irrigation were compared for their efficacy at cleaning root canal in vivo and in vitro. The in vivo study used 60 anterior teeth or premolars from 60 patients with periapical periodontitis who were randomly assigned to a syringe irrigation group (group S) or an ultrasonic irrigation group (group U). After instrumentation with a K-file using the step-back technique, the two groups received ultrasonic or syringe irrigation using 40 mL of 2.5% NaOCl respectively, followed by conventional lateral compaction. The in vitro study used 60 extracted single-canal premolars, which were also divided into U and S groups, and underwent the same irrigation and compaction. Forty of them were evaluated histologically by light microscopy, and the remaining 20 by scanning electron microscopy. No difference in main root canal filling was observed between the U and S groups. Notably, group U had a larger number of obturated lateral canals than group S. Moreover, a smaller amount of organic debris and more open dentinal tubules were observed in the root canal in group U than in group S. Our findings suggest that ultrasonic irrigation has a greater capacity to clean instrumented root canals than syringe irrigation. (J Oral Sci 58, 373-378, 2016)

show abstract

“…Um dos fatores que podem explicar esta limitação é a dificuldade da solução de alcançar a área apical usando pressão positiva. Porém, atualmente, novos recursos, como a IUP (Irrigação Ultrassônica Passiva), permitem o alcance da solução irrigadora em áreas irregulares, tais como a região de istmo 16 . No presente estudo, realizou-se a IUP ao final da instrumentação em toda a amostra.…”

Section: Discussionunclassified

Influência da solução irrigadora na formação de defeitos dentinários após preparo com Sistema Reciproc®

Mendonça

Pereira

2017

Rev. odontol. UNESP

View full text Add to dashboard Cite

ResumoIntrodução: Diferentes concentrações de hipoclorito de sódio (NaOCl) estão disponíveis para serem utilizadas durante o preparo biomecânico dos canais radiculares pelos instrumentos reciprocantes. Devido à rapidez com que o canal é instrumentado nessa nova cinemática reciprocante, concentrações mais elevadas de NaOCl são recomendadas. Assim, torna-se oportuna uma investigação para avaliar se a solução irrigadora NaOCl potencializa a possibilidade de formação de defeitos dentinários provocados pelo sistema Reciproc. Objetivo: Analisar a influência da solução irrigadora hipoclorito de sódio na formação de defeitos dentinários provocados pelo sistema de instrumentação Reciproc  . Material e método: Foram utilizados 60 primeiros pré-molares superiores extraídos, sendo estes distribuídos em dois grupos: (G1) NaOCl 5,25% (n=30) e (G2-controle) água destilada (n=30), nos quais somente o conduto vestibular foi instrumentado com o Sistema Reciproc  e irrigado com as soluções citadas. Todas as coroas dos dentes foram cortadas perpendicularmente ao seu longo eixo e as raízes foram incluídas em alvéolo e ligamento periodontal simulados. Os condutos palatinos não foram instrumentados nem irrigados, pois estes serviram como controle para o próprio espécime. Ao término da instrumentação, as raízes foram seccionadas em 2, 4, 6 e 8 mm a partir do forame apical, e levadas ao microscópio estereoscópico para se avaliar e registrar a formação de defeitos dentinários. Resultado: Foram encontrados defeitos dentinários no Grupo controle (G2) e no grupo hipoclorito de sódio 5,25% (G1), porém não houve diferença estatisticamente significante entre esses grupos (p>0,05). Conclusão: O hipoclorito de sódio não desencadeou alterações de defeitos dentinários quando utilizado em associação com a instrumentação pelo Sistema Reciproc  .Descritores: Preparo de canal radicular; irrigantes do canal radicular; instrumentos odontológicos. AbstractIntroduction: Different sodium hypochlorite concentrations are available for use during the mechanical preparation of root canals by reciprocating instruments. Because of the speed with which the channel is instrumented in this new reciprocating kinematics, higher concentrations of sodium hypochlorite (NaOCl) has been recommended. Thus, it is opportune to research to evaluate whether the irrigant NaOCl solution enhances the possibility of formation of dentinal defects caused by Reciproc system. Objective: To analyze the influence of irrigating sodium hypochlorite solution in the formation of dentinal defects caused by Reciproc  instrumentation system. Material and method: We used 60 extracted first premolars were divided into two groups (G1) NaOCl 5.25% (n = 30); (G2 Control) Distilled water (n = 30), only the buccal conduit was instrumented with Reciproc  system and irrigated with the solutions. All the crowns of the teeth were cut perpendicular to the long axis, and the roots included in alveoli and simulated periodontal ligament. Palatal conduits were not instrumented or irrigated, because they ...

show abstract

Effect of passive ultrasonic irrigation and manual dynamic irrigation on smear layer removal from root canals in a closed apex in vitro model

Abstract: Both activation techniques are important adjuncts in removing the smear layer, with manual dynamic activation being a simpler, safer, and more cost-effective technique.

Cited by 29 publications

References 29 publications

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

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

Comparison between ultrasonic irrigation and syringe irrigation in clinical and laboratory studies

Influência da solução irrigadora na formação de defeitos dentinários após preparo com Sistema Reciproc®

Contact Info

Product

Resources

About