The effect of endosonic and hand manipulation on the amount of root canal material extruded

Martin, Howard; Cunningham, Walter T.

doi:10.1016/0030-4220(82)90350-4

Cited by 94 publications

(60 citation statements)

References 7 publications

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“…It was establish 1mm below the apical foramen as the working length, obtaining no significant differences in relation to debris extrusion [3]. On the other hand, grater debris extrusion once the apical foramen was selected as a reference point in comparison to 1mm below it using the single-file technique [19].…”

Section: Discussionmentioning

confidence: 99%

Assessment of Extruded Debris in Primary Molars Comparing Manual and Reciprocating Instrumentation

Madalena¹,

Carneiro²,

Osório³

et al. 2018

Pesqui. bras. odontopediatria clín. integr.

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Objective: To compare the amount of extruded debris in primary molars after manual instrumentation or WaveOne system. Material and Methods: Twenty-five primary molar roots with mild and moderate root angulation (between 10 to 20º), having at least two thirds of root length, no pathological reabsorption (internal or external) or furcation perforation, were selected for this study. Roots were standardized at 6 mm in length, inserted and stabilized in individual acrylic resin blocks with random distribution into two groups: G1 (n=12): Instrumentation with crown-down manual technique; and G2 (n=13): instrumentation with WaveOne system. Blocks with roots were weighed before and after instrumentation, allowing the calculation of extruded debris using both mechanical preparations. Data analysis was performed by Bioestat 4.0 statistical software using Mann Whitney test. Results: The mean weight of extruded debris in manual instrumentation and WaveOne system have no significant difference (p=0.8704). Conclusion: Manual crown-down instrumentation or WaveOne system does not influence the amount of extruded debris after mechanical preparation, suggesting that both techniques were effective in canals clean causing similar extrused debris, however more studies with largest sample should be done to better validate this evidence.

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Section: Discussionmentioning

confidence: 99%

Assessment of Extruded Debris in Primary Molars Comparing Manual and Reciprocating Instrumentation

Madalena¹,

Carneiro²,

Osório³

et al. 2018

Pesqui. bras. odontopediatria clín. integr.

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“…8 In 1988, Fairbourn and Walter found that sonic, ultrasonic and cervical flaring instrumentation techniques produced less debris than conventional filing technique. 9 In 1990, Douglas revealed that balanced force technique extruded significantly less debris than either endosonic or step back techniques.…”

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confidence: 99%

Quantitative Evaluation of Apical Extrusion of Debris and Irrigants using Four Rotary Instrumentation Systems: An in vitro Study

Nagaveni

Balakoti

Karan

et al. 2013

The Journal of Contemporary Dental Practice

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Clinical significance: The apical extrusion of infected debris may have the potential to disrupt the balance between microbial aggression and host defense, resulting in incidents of acute inflammation. During preparation, irrigants and debris, such as bacteria, dentin filings and necrotic tissue may be extruded into the periradicular region leading to periapical inflammation and postoperative flare ups. Using an instrumentation technique that minimizes apical extrusion would be beneficial to both the practitioner and patient.The purpose of the study was to evaluate the weight of debris and volume of irrigant extruded apically from extracted teeth in vitro after endodontic instrumentation using four different rotary root canal instrumentation systems. Materials and methods:Four groups of each 20 extracted mandibular premolars were instrumented using one of the four systems: ProTaper Universal (Dentsply Maillefer, Ballaigues, Switzerland)), Hero-shaper (MicroMega, Besancon, France), RaCe (FKG Dentaire, La-Chaux-de-Fonds, Switzerland) and K3 (SybronEndo, West Collins, CA). Debris and irrigant extruded from the apical foramen during instrumentation were collected in preweighed test tubes. Volume of irrigant extruded was noted. The containers were stored in incubator at 70° for two days to evaporate the moisture. Weight of dry debris was noted.Statistical analysis: Data was analyzed using Kruskall-Wallis and Mann-Whitney U test at a significance of 0.001. Results:The results indicated that all of the instrumentation systems tested caused measurable apical extrusion of debris and irrigants. Higher extrusion was observed with Protaper system which was statistically significant with Hero-Shaper, RaCe and K3 systems. There were no statistical differences between Hero-shaper, K3 and RaCe systems (p < 0.05). Conclusion:All instrumentation techniques apically extruded debris and irrigant. However, Hero-shaper, K3 and RaCe systems produced less extruded debris and irrigant than the Protaper system.

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“…Uma das razões alegadas para a não utilização da patência apical é a possível extrusão de raspas ao longo do forame apical 4,[16][17][18] , condição relacionada principalmente à dor pós-operatória 19 , além de causar injúrias aos tecidos periapicais 20,21 . O conceito da patência é controverso para alguns profissionais 8 .…”

Section: Discussionunclassified

Avaliação in vitro da influência da lima patência na manutenção do comprimento de trabalho

Barroso

Uchimura

Endo

et al. 2017

Rev. odontol. UNESP

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ResumoObjetivo: Este trabalho teve como objetivo avaliar a influência da lima patência na manutenção do comprimento de trabalho (CT) durante o preparo coroa-ápice, utilizando o sistema oscilatório em canais artificiais de acrílico. Material e método: Foram utilizados 30 cubos de acrílico: a) grupo 1 (n=10): sem a lima patência e preparo no CT (CT=16 mm); b) grupo 2 (n=10): com a lima patência K#10, comprimento de patência de 17 mm e preparo no CT; c) grupo 3 (n=10): sem a lima patência, uso de uma lima K#10 em 16 mm para recapitulação e preparo no CT. Água destilada foi utilizada como solução irrigadora. O resultado foi analisado estatisticamente pelos testes de Levene e Kruskal-Wallis (p≤0,05), pelos quais se tornou possível observar a perda do comprimento de trabalho após a instrumentação, em diferentes abordagens, em relação à lima patência. Resultado: Os resultados obtidos demonstraram que houve diferença estatisticamente significante entre os grupos 1 e 3 quando comparados ao grupo 2; entretanto, ao comparar-se o grupo 1 com o grupo 3, estes apresentaram semelhanças estatísticas. O grupo 2 foi o único que conservou o CT após a instrumentação em 16 mm, enquanto os grupos 1 e 3 apresentaram uma perda de até 2 mm do CT. Conclusão: Conclui-se que a lima patência em 1 mm além do CT mostrou-se eficaz na manutenção do seu comprimento durante o preparo do canal radicular.Descritores: Endodontia; lima de patência; patência apical. AbstractObjective: This study aimed to evaluate the influence of patency file in maintaining the working lenght (WL) for the crown-down preparation using oscillating system in artificial canals of acrylic. Material and method: Thirty acrylic cubes were divided: a) Group 1 (n=10): without patency file and it were prepared in CT (CT=16 mm); b) Group 2 (n=10): with the patency #10 K-file, patency length of 17 mm and it were prepared in CT; and c) Group 3 (n=10): without patency file, using a #10 K-file in 16 mm for recapitulation and it were prepared in CT. Distilled water was used as irrigating solution. The results were statistically analyzed by the Levene and the Kruskal-Wallis test (p≤0.05), where it observed the loss of WL after instrumentation in different approaches to patency file. Result: The results showed a statistically significant difference between groups 1 and 3 compared to group 2, however the group 1 be compared in relation to these 3 showed statistical similarities. Group 2 was the one who saved the WL after instrumentation in 16 mm, while group 1 and 3 showed a loss of up to 2 mm WL. Conclusion: It was concluded that the patency file at 1 mm beyond the WL was effective in maintaining its length during root canal preparation.Descriptors: Endodontics; patency file; apical patency. INTRODUÇÃONo preparo do canal radicular, especificamente em seu terço apical, pode acidentalmente ocorrer a compactação de raspas de dentina, bem como de fragmentos pulpares, que causam bloqueio deste conduto 1,2 e, consequentemente, a perda no comprimento de trabalho (CT) 3,4 . Tal fato ocorre dura...

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The effect of endosonic and hand manipulation on the amount of root canal material extruded

Cited by 94 publications

References 7 publications

Assessment of Extruded Debris in Primary Molars Comparing Manual and Reciprocating Instrumentation

Assessment of Extruded Debris in Primary Molars Comparing Manual and Reciprocating Instrumentation

Quantitative Evaluation of Apical Extrusion of Debris and Irrigants using Four Rotary Instrumentation Systems: An in vitro Study

Avaliação in vitro da influência da lima patência na manutenção do comprimento de trabalho

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