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01.05.2019 | Review Article | Ausgabe 7/2019

Lasers in Medical Science 7/2019

Efficacy of low-level laser therapy in pain management after root canal treatment or retreatment: a systematic review

Zeitschrift:
Lasers in Medical Science > Ausgabe 7/2019
Autoren:
Y. Chen, X. L. Chen, X. L. Zou, S. Z. Chen, J. Zou, Y. Wang
Wichtige Hinweise
Y. Chen and X. L. Chen contributed equally to this article and should be regarded as co-first authors.

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Abstract

The aim of this study was to assess the effectiveness of low-level laser therapy (LLLT) for pain management after root canal treatment or retreatment. An electronic search for randomized controlled trials was conducted prior to November 2018, through PubMed, EMBASE, the Cochrane library (CENTRAL), and Web of Science. After filtering, seven articles were included, five related to root canal therapy (RCT) and two related to root canal retreatment (RCR). Six of the included studies presented a moderate risk of bias and a one low risk of bias, based on the Cochrane tool of risk of bias evaluation. The laser treatment included diode laser and indium–gallium–aluminum laser. LLLT was compared with placebo, blank, and ibuprofen treatment. Clinical outcome variables included the prevalence of pain, pain intensity, and need for analgesics after treatment. Three studies showed LLLT could reduce the prevalence of pain significantly after RCT or RCR. Although the effect of LLLT on pain intensity varied at different observation time points and among different studies, most of them found patients had lower pain intensity in the LLLT group. Of the three studies that assessed the need for analgesics after treatment, two studies showed significant benefits. Based on the current evidence, the use of LLLT for pain control in postendodontic therapy may be promising. However, solid conclusions should not be drawn definitely, given that more high-quality randomized controlled trials are required to further evaluate the efficacy of LLLT for pain management after RCT and RCR.

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