The efficacy of supplementary sonic irrigation using the EndoActivator<sup>®</sup>system determined by removal of a collagen film from an<i>ex vivo</i>model

Bryce, Graeme; MacBeth, N; Gulabivala, K; Ng, YL

doi:10.1111/iej.12870

Cited by 24 publications

(19 citation statements)

References 31 publications

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“…, Bryce et al . ). Sonic devices work similarly, but generally use flexible tips and operate at lower frequencies (<20 kHz).…”

Section: Introductionmentioning

confidence: 97%

“…, Bryce et al . ); however, ultrasonic activation has been reported to be superior regarding penetration to working length and into lateral canals (de Gregorio et al . ).…”

Section: Introductionmentioning

confidence: 99%

“…Passive ultrasonic irrigation (PUI) uses an oscillating file in the canal after shaping to induce acoustic microstreaming (>25 kHz). Its rapid movement enables penetration into noninstrumented areas and enhances shear stress on tissue remnants and biofilm (Jiang et al 2011, Bryce et al 2018. Sonic devices work similarly, but generally use flexible tips and operate at lower frequencies (<20 kHz).…”

Section: Introductionmentioning

confidence: 99%

“…Sonic devices work similarly, but generally use flexible tips and operate at lower frequencies (<20 kHz). Sonic activation appears to be more effective than needle irrigation alone (de Gregorio et al 2010, R€ odig et al 2010, Bryce et al 2018; however, ultrasonic activation has been reported to be superior regarding penetration to working length and into lateral canals (de Gregorio et al 2010). More recently, laser-activated irrigation based on the activation of irrigants by medium-infrared lasers (2780 and 2940 nm) has gained increasing attention in endodontics.…”

Section: Introductionmentioning

confidence: 99%

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Penetration depth of irrigants into root dentine after sonic, ultrasonic and photoacoustic activation

et al. 2019

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Aim To compare penetration depths of endodontic irrigants into the dentinal tubules of extracted teeth when using several activation methods. Methodology The root canals of 90 extracted human teeth were prepared to size 40, .06 taper. The straight and round‐shaped root canals were distributed randomly into six groups, and final irrigation was performed with EDTA and sodium hypochlorite as follows: (I) manual dynamic activation, (II) Ultrasonic, (III) Sonic, (IV) PIPS (photon‐induced photoacoustic streaming, (V) SWEEPS (shock‐wave enhanced emission photoacoustic streaming) and (0) control without final irrigation or activation. Subsequently, methylene blue was inserted into the canals and activated according to the groups (I–V). Teeth were sectioned horizontally, imaged under a light microscope, and dye penetration depths were measured in six sections per tooth and 24 points on a virtual clock‐face per section. Data were analysed statistically by nonparametric tests for whole teeth and separately for coronal, middle and apical thirds. Results Penetration of dye into the dentinal tubules was lowest for the controls. Median penetration depths amounted to 700–900 μm for groups I–V with differences in the apical thirds between group I and the other test groups. Minimum penetration depths were significantly greater for PIPS in the apical thirds (P ≤ 0.046). Conclusions Greater penetration depths occurred in the apical thirds for ultrasonic, sonic and laser‐induced activation compared to manual dynamic activation. PIPS was associated with deeper penetration of irrigants. The novel SWEEPS mode did not increase irrigant penetration.

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“…, Bryce et al . ). Sonic devices work similarly, but generally use flexible tips and operate at lower frequencies (<20 kHz).…”

Section: Introductionmentioning

confidence: 97%

“…, Bryce et al . ); however, ultrasonic activation has been reported to be superior regarding penetration to working length and into lateral canals (de Gregorio et al . ).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Penetration depth of irrigants into root dentine after sonic, ultrasonic and photoacoustic activation

et al. 2019

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“…Of note, the use of 35/.04 tips at high power setting was found to be more effective than other combinations in removing stained collagen from the canal surface and this result was attributed to increased energy applied to the irrigant as a result of greater tip rigidity. 20 Several methods have been used to mimic periapical tissue resistance during irrigant extrusion in vitro. Although periapical tissues may act as a natural barrier to prevent apical extrusion in vivo, several studies have neglected the possible effect of periapical tissues by evaluating extrusion into vials full of air.…”

Section: Discussionmentioning

confidence: 99%

Effects of size and operating mode of sonically oscillating files on irrigant extrusion

Eren

Keleş

Uyanık

et al. 2018

Cumhuriyet Dental Journal

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Objective: The purpose of this study was to evaluate the effects of size and oscillation frequency of sonic tips on irrigant extrusion during activation. Materials and Methods: Twenty artificial maxillary molar tooth models were used in this study. The palatinal canal of each model was prepared up to final apical size of #40. Each specimen was mounted on a glass vial filled with saline solution to simulate a periapical lesion. The initial weights were measured using an analytical balance with 10-5 g accuracy. Then, a series of irrigations were conducted according to the size (15/.02, 25/.04, 35/.04) and operating mode/speed (low, medium, high) of the sonic tips. In control group, the irrigant was delivered by placing the needle tip at the access cavosurface, without the insertion and activation of the sonic tip. The mean weights of apically extruded irrigant were calculated by subtracting the mean initial weights from the final weights of test apparatus. Data were statistically analyzed by the Kruskal-Wallis and Siegel Castellan tests. Results: The use of 15/.02 tips resulted in higher irrigant extrusion than the control only at high speed while the 35/.04 tips only at low speed (p<0.05). The 25/.04 tips presented higher extrusion than the control with all operating modes (p<0.05). At high speed mode, both the 15/.02 and 25/.04 tips were associated with higher irrigant extrusion than the 35/.04 tips (p<0.05). Conclusion: Both the size and oscillation frequency of the sonic tips had significant effects on irrigant extrusion during sonically activated irrigation.

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Effect of sodium hypochlorite and ethylenediaminotetraacetic acid activated by laser and ultrasonic energy on surface morphology and chemical composition of intracanal dentin

Katunarić,

Grgac,

Gabrić

et al. 2023

Microscopy Res & Technique

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The aim of the study was to evaluate the structural and chemical changes in intracanal dentin after root canal irrigation with sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic acid (EDTA) using additional activation with a novel Er:YAG Shock Wave‐Enhanced Emission Photoacoustic Streaming (SWEEPS), ultrasonic irrigation (UI), and Nd:YAG irradiation. Root canals of extracted human premolars were instrumented with distilled water and distributed into groups according to the irrigation protocol used: Group 1: conventional needle irrigation (CI) with 3% NaOCl; group 2: CI with 15% EDTA; and group 3: CI with NaOCl+EDTA. In group 4, root canals were irrigated with NaOCl+EDTA+NaOCl using the following techniques: CI (group 4A), SWEEPS (group 4B), UI (group 4C). In group 4D, root canals were finally irradiated with Nd:YAG laser. After the irrigation, the intracanal dentin sample was collected and analyzed using spectroscope with a Fourier transformation of infrared spectrum in Attenuated total reflection technique (FTIR‐ATR) to calculate apatite/collagen ratio. Scanning electron microscopy (SEM) and energy dispersive x‐ray spectrometry (EDS) were used to determine its chemical composition. FTIR‐ATR showed no significant difference in the phosphate/amid I ratio between the control and the experimental groups (p > 0.05). SWEEPS and UI of NaOCl+EDTA+NaOCl caused the most pronounced decrease of Ca and P (p < 0.05) value compared to CI and control group, and canal wall erosion. SWEEPS and UI of NaOCl+EDTA+NaOCl caused the most pronounced decrease of Ca and P value and significant canal wall erosion. However, no difference in phosphate/amide ratio was reported among groups.Research Highlights SWEEPS and UI of NaOCl+EDTA+NaOCl caused the most pronounced decrease of Ca and P values and significant canal wall erosion. There was no difference in phosphate/amide ratio among the irrigation protocols.

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The efficacy of supplementary sonic irrigation using the EndoActivator^®system determined by removal of a collagen film from anex vivomodel

Cited by 24 publications

References 31 publications

Penetration depth of irrigants into root dentine after sonic, ultrasonic and photoacoustic activation

Penetration depth of irrigants into root dentine after sonic, ultrasonic and photoacoustic activation

Effects of size and operating mode of sonically oscillating files on irrigant extrusion

Effect of sodium hypochlorite and ethylenediaminotetraacetic acid activated by laser and ultrasonic energy on surface morphology and chemical composition of intracanal dentin

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The efficacy of supplementary sonic irrigation using the EndoActivator®system determined by removal of a collagen film from anex vivomodel

Cited by 24 publications

References 31 publications

Penetration depth of irrigants into root dentine after sonic, ultrasonic and photoacoustic activation

Penetration depth of irrigants into root dentine after sonic, ultrasonic and photoacoustic activation

Effects of size and operating mode of sonically oscillating files on irrigant extrusion

Effect of sodium hypochlorite and ethylenediaminotetraacetic acid activated by laser and ultrasonic energy on surface morphology and chemical composition of intracanal dentin

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The efficacy of supplementary sonic irrigation using the EndoActivator^®system determined by removal of a collagen film from anex vivomodel