Antimicrobial efficacy of cordless sonic or ultrasonic devices on <i>Enterococcus faecalis‐</i>infected root canals

Pedullà, Eugenio; Genovese, Carlo; Messina, Riccardo; Rosa, Giusy Rita Maria La; Corsentino, Giacomo; Rapisarda, Silvia; Arias-Moliz, María Teresa; Tempera, G; Grandini, Simone

doi:10.1111/jicd.12434

Cited by 12 publications

(8 citation statements)

References 31 publications

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“…However, the cleaning ability of all three final irrigation protocols tested in the present study was similar, with no significant statistical differences ( p > 0.05) between them. These results agreed with previous studies that have confirmed the efficiency of the EndoUltra device in the eradication of bacterial biofilms [ 22 , 33 ]. The performance of PUI depends upon the acoustic streaming and cavitation taking place.…”

Section: Discussionsupporting

confidence: 93%

“…This device claimed to improve the cleaning and disinfection of a root canal system, facilitating the upward debris removal, eliminating the biofilm and the smear layer from the canal walls at a higher rate, and making microorganisms more sensitive to NaOCl due to its temporary action on the bacterial cell wall and cytoplasmic membrane. However, there are few reported studies on the efficiency of this ultrasonic device in root canal disinfection [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of Different Final Irrigation Procedures on Enterococcus faecalis Infected Root Canals: An In Vitro Evaluation

et al. 2022

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This study aimed to evaluate the antibacterial effect of three final irrigation protocols and to compare their ability to remove the smear layer and debris from the root canal. Methods: Sixty-three single-rooted human teeth were inoculated with Enterococcus faecalis for 14 days. The teeth were divided into a positive control group (N = 3) and three treatment groups (N = 20) as follows: final irrigation with saline solution (control group), irrigation with 5.25% NaOCl ultrasonically activated with EndoUltra (EU), standard needle irrigation with Qmix 2in1 (Qx) and irrigation with 5.25% NaOCl activated using SiroLaser Blue (SB). The bacterial load was evaluated by analyzing the colony-forming units (CFU/mL). Selected specimens were split longitudinally and examined using scanning electron microscopy in order to determine the presence of a smear layer and debris. Statistical analyses were performed using one-way ANOVA and the Kruskal–Wallis rank-sum test. Results: Activation of NaOCl with EndoUltra or SiroLaser Blue was superior at reducing intracanal bacteria relative to standard needle irrigation with Qmix 2in1 solution (p < 0.05). Even though SiroLaser Blue showed the best results for removing the smear layer and debris, no significant differences were detected between the groups (p > 0.05). Conclusions: Final irrigation with 5.25% NaOCl ultrasonically activated using EndoUltra or SiroLaser Blue demonstrated a higher efficacy in bacterial reduction than standard needle irrigation with Qmix 2in1.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effectiveness of Different Final Irrigation Procedures on Enterococcus faecalis Infected Root Canals: An In Vitro Evaluation

et al. 2022

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“…The Endoactivator (Dentsply Sirona, Ballaigues, Switzerland) is a further example of a battery-operated sonic cordless device, coupled with no-cutting polymer tips, which do not cut root dentin and are available in three sizes (15.02, 25.04, 35.04). It can be used at three different speeds, 10,000, 6000, and 2000 cycles per minute, generating a 160/190 Hz frequency [ 13 ] to improve the final irrigation protocol. Its design allows for the safe activation of intracanal irrigants, as well as irrigation inside curved root canals.…”

Section: Introductionmentioning

confidence: 99%

“…The EndoUltra (Micromega, Besançon, France) was the first cordless ultrasonic instrument generating a 40,000 Hz frequency. This device presents a rechargeable lithium ion battery and a single 15.02 stainless steel tip [ 13 ]. However, its rigid and nonflexible tip, especially in the curved root canals in contact with the dentinal walls, could create an unintentional intracanal ledge.…”

Section: Introductionmentioning

confidence: 99%

In Vitro Evaluation of Different Irrigation Protocols on Intracanal Smear Layer Removal in Teeth with or without Pre-Endodontic Proximal Wall Restoration

Kharouf

Pedullà

Rosa

et al. 2020

JCM

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To investigate the influence of pre-endodontic coronal wall restoration on smear layer removal during different root canal irrigation strategies, single-root premolars were prepared with a mesio-occlusal cavity. Half were left untreated (G1), while the mesial walls of the remaining half were reconstructed using a resin composite (G2). The specimens were divided into control (ctrl) groups, which used the conventional needle irrigation method, and four experimental subgroups according to irrigation strategy: Sonic activation using the Endoactivator, sonic activation using the EQ-S, mechanical activation using the XP-Endo finisher, and ultrasonic activation using the EndoUltra. Smear layer removal was assessed through SEM and the results were statistically analyzed. At the coronal and middle thirds, no significant difference (p > 0.05) was detected for G1 and G2, except for the control subgroups (G1ctrl vs G2 ctrl) at the middle third. At the apical third, the smear layer removal was significantly greater for G2 than G1. In G1, both at the middle and apical level, EQ-S and EndoUltra showed greater smear layer removal (p < 0.05) compared to the others G1 subgroups. In G2, at the apical level, the EQ-S and EndoUltra were the most effective in smear layer removal. Pre-endodontic coronal wall restoration may improve the smear layer removal during root canal irrigation.

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“…Furthermore, the vapour lock effect, caused by trapped air bubbles in the canal, inhibits apical irrigation [4]. By overcoming CNI accessibility issues [5], ultrasonic [6] and sonic oscillation [7] and laser-based agitation techniques [8] effectively spread the irrigant throughout the root canal system. Specifically, laser-activated irrigation (LAI) successfully flushes hard-to-reach areas [9].…”

Section: Introductionmentioning

confidence: 99%

Irrigation with reduced sodium hypochlorite solution concentration using laser‐induced cavitation is effective and safe in rat intraradicular biofilm model

Uematsu,

Yahata,

Ohnishi

et al. 2023

Aust Endodontic J

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This study aimed to investigate the optimal sodium hypochlorite solution (NaOCl) concentration to effectively remove the root canal biofilm without stimulating periradicular inflammation using coronal laser‐activated irrigation (CLAI). To compare the efficacy of different NaOCl concentrations combined with CLAI in removing the biofilm, an in vivo intraradicular biofilm rat model was used. Root canals were irrigated using an Er:YAG laser with either 5% or 0.5% NaOCl. Biofilm removal efficacy of CLAI was compared to that of conventional needle irrigation using scanning electron microscopy (SEM) and quantitative polymerase chain reaction (qPCR). Histological observation of CLAI‐associated periradicular inflammation was also conducted. In both the 5% and 0.5% CLAI groups, SEM observation showed the opening of the dentin tubules and biofilm removal. qPCR analysis indicated that the residual bacteria counts after cleaning were significantly lower in the 5% and 0.5% CLAI groups than in the conventional needle irrigation and positive control groups (Tukey test, p < 0.05), and no significant difference was observed between the 5% and 0.5% CLAI groups (p > 0.05). Periapical inflammation in the 5% CLAI group revealed the most severe, including significant neutrophilic and lymphocytic infiltration with abscess formation, while only mild vasodilation was observed in the 0.5% CLAI group. CLAI can remove the biofilm independently of chemical action, which avoids the risks associated with high NaOCl concentrations. Therefore, this root canal irrigation technique ensures safety and effectiveness, promising to contribute to new treatment strategies intended to remove intraradicular biofilm.

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Antimicrobial efficacy of cordless sonic or ultrasonic devices on Enterococcus faecalis‐infected root canals

Cited by 12 publications

References 31 publications

Effectiveness of Different Final Irrigation Procedures on Enterococcus faecalis Infected Root Canals: An In Vitro Evaluation

Effectiveness of Different Final Irrigation Procedures on Enterococcus faecalis Infected Root Canals: An In Vitro Evaluation

In Vitro Evaluation of Different Irrigation Protocols on Intracanal Smear Layer Removal in Teeth with or without Pre-Endodontic Proximal Wall Restoration

Irrigation with reduced sodium hypochlorite solution concentration using laser‐induced cavitation is effective and safe in rat intraradicular biofilm model

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