Effect of different irrigation activation techniques on irrigation penetration into the simulated lateral canals

Fidan, Mehmet Eren; Erdemir, Ali

doi:10.1007/s10266-022-00729-1

Cited by 6 publications

(2 citation statements)

References 53 publications

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“…Er, Cr: The YSGG laser activation group showed a highly significant difference with passive ultrasonic in all thirds, mesially and distally, in lateral canal penetrations. This is similar to what was reported by Fidan et al ( 36 ), who determined that the contrast solution penetration into the simulated lateral canals was achieved most effectively by the Er: YAG laser activation technique. Hoshihara et al ( 37 ) reported that the CaOH2 removal rate by laser was significantly higher than passive ultrasonic at all tip insertion depths.…”

Section: Discussionsupporting

confidence: 91%

Assessment of the Effect of Different Irrigation Protocols on the Penetration of Irrigation Solution into Simulated Lateral Canals (In Vitro Study)

Talib¹

2024

Eur Endod J

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Objective To compare the effectiveness of lateral canal irrigation penetration by conventional needle, passive ultrasonic, sonic endo activator, and Erbium laser (2780nm). Methods A total of 40 palatal roots of human maxillary first molars were collected and instrumented at a working length of 12 mm by an X1-X4 rotary Protaper Next system (Dentsply, Maillefer, Ballaigues, Switzerland) using the crown-down technique. Artificial lateral canals were made at 2, 4, and 6 mm from the apex on mesial and distal sides using an ISO rotary reamer (Dentsply, Maillefer, Ballaigues, Switzerland; #10 for mesial, #08 for distal). The samples were then cleared using methyl salicylate. A solution of black ink and normal saline was used as an irrigant for the root canal. The percentages of the penetration of the ink into the lateral canals were measured using a stereomicroscope (Q-Scope, Arnhem, The Netherlands) with the aid of program Image J. The Tukey test is used to assess the significant difference between intragroup and intergroup comparisons of different thirds, and the T-test is used to assess the significant difference between every two groups and for the mesial and distal sides of each group. The level of significance was set at 0.05. Results Results showed that none of the activation techniques used resulted in complete lateral canal penetrations; however, on both sides at all thirds, the Erbium laser (2780 nm) achieved the highest results with a highly significant statistical difference (p=0.05) with all other groups, and the least penetration was in the conventional needle group. Conclusion The size of the lateral canal is a restricting factor for all activation methods; the best results can be achieved by laser. Conventional needles cannot be used alone to disinfect complex canal anatomy; however, passive ultrasonic and sonic endo activator activations can produce comparable results.

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Section: Discussionsupporting

confidence: 91%

Assessment of the Effect of Different Irrigation Protocols on the Penetration of Irrigation Solution into Simulated Lateral Canals (In Vitro Study)

Talib¹

2024

Eur Endod J

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“…Regarding penetration of lateral canals, Fidan and Erdemir created artificial lateral canals in roots of extracted monoradicular teeth and evaluated penetration of radiopaque irrigating solution activated with XP‐endo Finisher, EDDY, Nd:YAG and Er:YAG laser. The highest lateral penetration values were observed in the Er:YAG LAI group (Fidan & Erdemir, 2023).…”

Section: Other Relevant Aspects With Regard To Laimentioning

confidence: 99%

Principle and antimicrobial efficacy of laser‐activated irrigation: A narrative review

Meire,

De Moor

2024

Int Endodontic J

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In the last two decades, the activation of root canal irrigants with pulsed lasers as an adjunct in root canal treatment has become increasingly popular. This narrative review explains the physical basics and the working mechanism of laser‐activated irrigation (LAI), explores the parameters influencing LAI efficacy, considers historical evolutions in the field and summarizes laboratory and clinical evidence with emphasis on the antimicrobial action of LAI. Cavitation is the driving force behind LAI, with growing and imploding vapour bubbles around the laser tip causing various secondary phenomena in the irrigant, leading to intense liquid dynamics throughout the underlying root canal. High‐speed imaging research has shown that laser wavelength, pulse energy, pulse length and fibre tip geometry are parameters that influence this cavitation process. Nevertheless, this has not resulted in standardized settings for LAI. Consequently, there is significant variability in studies assessing LAI efficacy, complicating the synthesis of results. Laboratory studies in extracted teeth suggest that, with regard to canal disinfection, LAI is superior to conventional irrigation and there is a trend of higher antimicrobial efficacy of LAI compared to ultrasonic activation. Clinical evidence is limited to trials demonstrating similar postoperative pain levels after LAI versus no activation or ultrasonic activation. Clinical evidence concerning the effect of LAI on healing of apical periodontitis as yet is scarce.

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Sonic-assisted antibacterial photodynamic therapy: a strategy for enhancing lateral canal disinfection

Wang,

Lei,

Huang

et al. 2024

BMC Oral Health

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Background Bacterial infections in lateral canals pose challenges for root canal treatment. This in vitro study aims to evaluate the antibacterial efficacy of sonic-assisted methylene blue mediated antimicrobial photodynamic therapy (MB-aPDT) against Enterococcus faecalis (E. faecalis) in infected lateral canals. Methods Sixty-five premolars infected with E. faecalis in lateral canals were randomly divided into five groups (n = 13) and treated with : (1) 5.25% NaOCl (positive control); (2) Saline (negative control); (3) Sonic-assisted MB-aPDT; (4) 3% NaOCl + MB-aPDT; (5) 3% NaOCl + sonic-assisted MB-aPDT, respectively. The antibacterial efficacy was evaluated by the colony- counting method (CCM) and scanning electronic microscope (SEM). Results Both 5.25% NaOCl and the 3% NaOCl + sonic-assisted MB-aPDT exhibited the most effective while comparable antibacterial effects without significant statistical difference (P > 0.05). Furthermore, the antibacterial effect of the 3% NaOCl + MB-aPDT group was significantly higher compared to that of the sonic-assisted MB-aPDT group (P < 0.05). The SEM results demonstrated notable morphological alterations in E. faecalis across all experimental groups, except for the negative control group. Conclusion The concentration of NaOCl can be reduced to a safe level while preserving its antibacterial efficacy through the synergism with the sonic-assisted MB-aPDT in this study.

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Effect of different irrigation activation techniques on irrigation penetration into the simulated lateral canals

Cited by 6 publications

References 53 publications

Assessment of the Effect of Different Irrigation Protocols on the Penetration of Irrigation Solution into Simulated Lateral Canals (In Vitro Study)

Assessment of the Effect of Different Irrigation Protocols on the Penetration of Irrigation Solution into Simulated Lateral Canals (In Vitro Study)

Principle and antimicrobial efficacy of laser‐activated irrigation: A narrative review

Sonic-assisted antibacterial photodynamic therapy: a strategy for enhancing lateral canal disinfection

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