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Temperature elevation during root canal treatment with a 445-nm diode laser—an in vitro study

Temperature elevation during root canal treatment with a 445-nm diode laser—an in vitro study Objective This study investigated the thermal effects of a 445-nm diode laser on tooth roots of endodontic treatment. Material and methods A total of 15 human single-rooted extracted teeth were included in the survey. Samples were sectioned at the cementoenamel junction. The root canals were instrumented using a rotary system. Each root was fitted into a resin mold and was fixed in a vertical position using clamps. All samples were placed on a support in a thermal path at 37 °C. The root canals were randomly divided into three groups (n = 5 each): samples were irradiated with 0.6 W continuous wave (CW), 0.4 W CW, and 1.2 W gated mode, at a repetition rate of 10 Hz with a pulse duration of 50 ms. The time-dependent temperature elevations of the cervical, middle, and apical thirds of the roots were recorded at a sampling rate of 2 Hz during laser irradiation with a K-type thermocouple measurement system. Results The mean temperature rise inside the roots in this study was below 10 °C, whereas the maximum temperature rise of 9.83 °C (0.6 W CW) and 9.81 °C (1.2 W gated mode, repetition rate 10 Hz, and pulse duration 50 ms) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Lasers in Dental Science Springer Journals

Temperature elevation during root canal treatment with a 445-nm diode laser—an in vitro study

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Dentistry; Dentistry; Optics, Lasers, Photonics, Optical Devices
eISSN
2367-2587
DOI
10.1007/s41547-018-0023-6
Publisher site
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Abstract

Objective This study investigated the thermal effects of a 445-nm diode laser on tooth roots of endodontic treatment. Material and methods A total of 15 human single-rooted extracted teeth were included in the survey. Samples were sectioned at the cementoenamel junction. The root canals were instrumented using a rotary system. Each root was fitted into a resin mold and was fixed in a vertical position using clamps. All samples were placed on a support in a thermal path at 37 °C. The root canals were randomly divided into three groups (n = 5 each): samples were irradiated with 0.6 W continuous wave (CW), 0.4 W CW, and 1.2 W gated mode, at a repetition rate of 10 Hz with a pulse duration of 50 ms. The time-dependent temperature elevations of the cervical, middle, and apical thirds of the roots were recorded at a sampling rate of 2 Hz during laser irradiation with a K-type thermocouple measurement system. Results The mean temperature rise inside the roots in this study was below 10 °C, whereas the maximum temperature rise of 9.83 °C (0.6 W CW) and 9.81 °C (1.2 W gated mode, repetition rate 10 Hz, and pulse duration 50 ms)

Journal

Lasers in Dental Science – Springer Journals

Published: Feb 28, 2018

References

  • A study on the polymicrobial etiology of root canal infections in anterior non-vital teeth in a Government Hospital in Kolkata, India
    Chakraborty, P; Chattopadhyay, U
  • Lasers in endodontics
    Gutknecht, N
  • The antibacterial effects of lasers in endodontics
    Camargo, ASCC
  • Recovery of Enterococcus faecalis after single- or multiple-visit root canal treatments carried out in infected teeth ex vivo
    Vivacqua-Gomes, N; Gurgel-Filho, ED; Gomes, BP; Ferraz, CC; Zaia, AA; Souza-Filho, FJ
  • Microbial status of apical root canal system of human mandibular first molars with primary apical periodontitis after “one-visit” endodontic treatment
    Nair, P; Henry, S; Cano, V; Vera, J
  • Mechanical preparation of root canals: shaping goals, techniques and means
    Hülsmann, M; Peters, OA; Dummer, PM
  • Penetration ability of different irrigants into dentinal tubules
    Berutti, E; Marini, R; Angeretti, A
  • In vivo evaluation of microbial reduction after chemo-mechanical preparation of human root canals containing necrotic pulp tissue
    Vianna, M; Horz, H; Gomes, B; Conrads, G
  • Efficacy of different irrigation and activation systems on the penetration of sodium hypochlorite into simulated lateral canals and up to working length: an in vitro study
    Gregorio, C; Estevez, R; Cisneros, R; Paranjpe, A; Cohenca, N
  • The effectiveness of increased apical enlargement in reducing intracanal bacteria
    Card, SJ; Sigurdsson, A; Ørstavik, D; Trope, M
  • Effect of different irrigation on smear layer removal after post space preparation
    Gu, X-H; Mao, C-Y; Kern, M
  • Enterococcus faecalis—a mechanism for its role in endodontic failure
    Love, R
  • Bactericidal effect of a 980-nm diode laser in the root canal wall dentin of bovine teeth
    Gutknecht, N; Franzen, R; Schippers, M; Lampert, F
  • A comparative study of smear layer removal and erosion in apical intraradicular dentine with three irrigating solutions: a scanning electron microscopy evaluation
    Mancini, M; Armellin, E; Casaglia, A; Cerroni, L; Cianconi, L
  • Invasion of dentinal tubules by oral streptococci is associated with collagen recognition mediated by the antigen I/II family of polypeptides
    Love, R; McMillan, M; Jenkinson, H
  • Irrigation of the root canal
    Schäfer, E
  • Laser in endodontics (part II)
    Olivi, G; Crippa, R; Iaria, G; Kaitsas, V; DiVito, E; Benedicti, S
  • Disinfection of contaminated canals by different laser wavelengths, while performing root canal therapy
    Asnaashari, M; Safavi, N
  • Bactericidal effect of a Nd: YAG laser on Enterococcus faecalis at pulse durations of 15 and 25 ms in dentine depths of 500 and 1,000 μm
    Franzen, R; Gutknecht, N; Falken, S; Heussen, N; Meister, J
  • The bactericidal effect of 2780 and 940 nm laser irradiation on Enterococcus faecalis in bovine root dentin slices of different thicknesses
    Gutknecht, N; Al-Karadaghi, TS; Al-Maliky, MA; Conrads, G; Franzen, R
  • Investigations of radicular dentin permeability and ultrastructural changes after irradiation with Er, Cr: YSGG laser and dual wavelength (2780 and 940 nm) laser
    Al-Karadaghi, TS; Franzen, R; Jawad, HA; Gutknecht, N
  • Thermal and morphological effects of the pulsed Nd: YAG laser on root canal surfaces
    He, H; Yu, J; Song, Y; Lu, S; Liu, H; Liu, L
  • Finite element study on thermal effects in root canals during treatment with a surface-absorbed laser
    Gutknecht, N; Franzen, R; Lampert, F
  • Pulp capping-from conventional to laser-assisted therapy (I)
    Todea, C; Kerezsi, C; Balabuc, C; Calniceanu, M; Filip, L
  • In vitro evaluation of Er: YAG and Nd: YAG Vaser irradiation on root canal walls-a preliminary study
    Goya, C; Silveira, BL; Aranha, ACC; Zezell, DM; Matsumoto, K; Paula, EC
  • Temperature variation at the external root surface during 980-nm diode laser irradiation in the root canal
    Alfredo, E; Marchesan, M; Sousa-Neto, M; Brugnera-Junior, A; Silva-Sousa, Y
  • Analysis of laser transmission and thermal effects on the inner root surface during periodontal treatment with a 940-nm diode laser in an in vitro pocket model
    Falkenstein, F; Gutknecht, N; Franzen, R
  • Effects of diode laser (810 nm) irradiation on root canal walls: thermographic and morphological studies
    Costa, RA; Nogueira, GEC; Antoniazzi, JH; Moritz, A; Zezell, DM
  • Temperature evolution on human teeth root surface after diode laser assisted endodontic treatment
    Gutknecht, N; Franzen, R; Meister, J; Vanweersch, L; Mir, M
  • Temperature threshold levels for heat-induced bone tissue injury: a vital-microscopic study in the rabbit
    Eriksson, A; Albrektsson, T
  • A comparative study of temperature elevation on human teeth root surfaces during Nd: YAG laser irradiation in root canals
    Strakas, D; Franzen, R; Kallis, A; Vanweersch, L; Gutknecht, N