Debris and irrigant extrusion potential of 2 rotary systems and irrigation needles

Altundaşar, Emre; Nagaş, Emre; Uyanık, Özgür; Serper, Ahmet

doi:10.1016/j.tripleo.2011.03.044

Cited by 124 publications

(128 citation statements)

References 29 publications

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“…In clinical situations, the apex would be surrounded by granulomatous or periradicular tissues, which could restrict apical extrusion (37). To simulate the resistance of periapical tissue, the use of floral foam has been suggested; however, it can absorb irrigant solution and debris extruded apically while acting as a barrier (37). Considering that physical backpressure was absent in all experimental groups, this bias was controlled.…”

Section: Discussionmentioning

confidence: 99%

Apically extruded debris in filling removal of curved canals using 3 NiTi systems and hand files

Delai¹,

Boijink²,

Hoppe³

et al. 2018

Braz. Dent. J.

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The aim of this study was to assess the amount of apically extruded debris during filling removal with WaveOne Gold (WOG), ProTaper Universal Retreatment (PTR), D-RaCe Retreatment (DRR) or hand files (HF), to compare the working time during filling removal, and to describe failures of NiTi instruments. Forty mesiobuccal roots of maxillary first molars were prepared with WOG Primary, obturated and divided into 4 groups (n=10), according to the instruments used: WOG, PTR, DRR or HF. Distilled water was used as irrigant and the extruded debris were collected in Eppendorf tubes and dried. The amount of extruded debris was determined by subtracting the final from the initial weight. The time of filling removal for each canal was recorded and the instruments used were analyzed pre and post-operatively by SEM. Kruskal-Wallis and Dunn's test analyzed extruded debris data and ANOVA, followed by Tukey's test, compared the working time data (α=0.05). Instrument deformation and fracture were described. WOG produced significantly less debris compared with HF and DRR (p<0.05), and similar to PTR (p>0.05). HF, PTR and DRR showed no significant difference (p>0.05). Working time in HF group was significantly higher than others (p<0.05). SEM analyses showed, from the 18 instruments evaluated, 3 fractures and 10 deformations. All instruments tested caused debris extrusion. WOG was associated with less extrusion than DRR and HF. Filling removal with HF was slower than with the other instruments. All NiTi systems presented fracture and deformation.

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Section: Discussionmentioning

confidence: 99%

Apically extruded debris in filling removal of curved canals using 3 NiTi systems and hand files

Delai¹,

Boijink²,

Hoppe³

et al. 2018

Braz. Dent. J.

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show abstract

“…A atuação física da irrigação dos canais radiculares pode ser influenciada por diversos fatores, entre os quais: tipo e diâmetro da agulha irrigadora 3,4 , profundidade da agulha no interior do canal 3,5 , diâmetro final do preparo 6,7 , diâmetro foraminal 8,9 e grau de curvatura do canal 5,10 , além do volume e das propriedades da solução irrigadora utilizada 11 . A ação da solução irrigadora pode ser afetada negativamente por agulhas de grande diâmetro, por maiores distâncias entre a ponta da agulha e o batente apical, e também por canais pouco dilatados 5 .…”

Section: Introductionunclassified

“…A proximidade da agulha de irrigação com a porção apical do canal radicular é um fator importante na remoção de debris dentinário e micro-organismos 3,4 . As unidades de diâmetro das agulhas irrigadoras pelo sistema gauge não são diretamente comparáveis com o tamanho dos instrumentos endodônticos 12 .…”

Section: Introductionunclassified

“…É importante ressaltar que a ponta da agulha não deve se prender às paredes dentinárias durante a irrigação, devido ao risco de extravasamento ou extrusão da solução irrigadora para os tecidos periapicais 3,9,14,15 .…”

Section: Introductionunclassified

“…Existem diversos relatos na literatura de complicações devido à injeção inadvertida de hipoclorito de sódio além do forame apical 15,17 . Diante disto, agulhas com abertura lateral foram propostas com a finalidade de dificultar a propulsão apical da solução irrigadora 3,14 .…”

Section: Introductionunclassified

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Influência do diâmetro foraminal do canal radicular, do tipo e da penetração de agulha, e do fluxo da solução irrigadora na limpeza e na extrusão apical

Tanomaru‐Filho

Loiola

Miano

et al. 2014

Rev. odontol. UNESP

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Influência do diâmetro foraminal do canal radicular, do tipo e da penetração de agulha, e do fluxo da solução irrigadora na limpeza e na extrusão apical Descritores: Endodontia; irrigantes do canal radicular; radiologia. Abstract Introduction:The root canal irrigation aims to clean and disinfect the root canal system, without causing apical extrusion. Objective: To evaluate the influence of apical foramen diameter, needle penetration depth and needle design, and the irrigating solution flow rate on the cleaning and apical extrusion. Material and method: Roots of human mandibular incisors with single-canal were instrumented and after enlarged with two different root apical sizes (40 and 60 K-files), the root canals were filled with contrast solution thickened with propylene glycol and zinc oxide. Two types of irrigation needles (27-gauge) with different designs (apical or lateral opening) were used, two flow rates corresponding to 15 or 25 mL/min and needle penetration at two depths (3 and 6 mm from the apex). Before and after irrigation, the teeth were radiographed using a digital radiographic system. Pre-irrigation (canals filled with contrast) and post-irrigation (canals with remaining contrast) images were submitted to digital subtraction using the Adobe Photoshop CS4 software and the areas were measured using the Image Tool 3.0 software, obtaining the percentage of cleaning and extrusion. Data obtained were subjected to one-way ANOVA and Tukey's tests with the significance level of 5%. Result: There was no statistical difference between the apical foramen diameter, needle penetration depth and needle design, and the irrigating solution flow rate on the cleaning results (more than 97%) and the level of apical extrusion (less than 0.38 mm 2 ), (p>0,05). Conclusion: All irrigation protocols evaluated provided cleaning of the root canal and low apical extrusion of irrigating solution.

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Lasers

Alshahrani

Beebe²,

Chogle

2016

Current Therapy in Endodontics

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Debris and irrigant extrusion potential of 2 rotary systems and irrigation needles

Cited by 124 publications

References 29 publications

Apically extruded debris in filling removal of curved canals using 3 NiTi systems and hand files

Apically extruded debris in filling removal of curved canals using 3 NiTi systems and hand files

Influência do diâmetro foraminal do canal radicular, do tipo e da penetração de agulha, e do fluxo da solução irrigadora na limpeza e na extrusão apical

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