Dental and Medical Problems

Dent Med Probl
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ISSN 1644-387X (print)
ISSN 2300-9020 (online)
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Dental and Medical Problems

2020, vol. 57, nr 1, January-March, p. 45–52

doi: 10.17219/dmp/113332

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Assessment of a single versus double application of low-level laser therapy in pain reduction following orthodontic elastomeric separation: A randomized controlled trial

Ocena pojedynczego lub podwójnego użycia lasera małej mocy w redukowaniu bólu związanego z separacją elastomerową – randomizowane badanie kontrolowane

Mai Mohammed Erfan Almallah1,B,C,D,E,F, Mohammad Younis Hajeer2,A,C,D,E,F, Wael Housam Almahdi1,A,D,E,F, Ahmad Sharaf Burhan2,C,D,E,F, Youssef Latifeh3,4,A,D,E,F, Suha Khaled Madkhaneh1,B,D,F

1 Department of Periodontics, Faculty of Dentistry, University of Damascus, Syria

2 Department of Orthodontics, Faculty of Dentistry, University of Damascus, Syria

3 Department of Psychiatry, Faculty of Medicine, University of Damascus, Syria

4 Department of Internal Medicine, Faculty of Medicine, Syrian Private University, Damascus, Syria

Abstract

Background. Periodontal ligament (PDL) pain, associated with the insertion of elastomeric separators, is one of the most annoying experiences at the beginning of orthodontic treatment. Low-level laser therapy (LLLT) has recently been suggested as a method of controlling this pain.
Objectives. The aim of this study was to evaluate the effectiveness of LLLT on reducing the pain associated with elastomeric separation and to compare a single dose of LLLT (1 h before the insertion of elastomeric separators) vs 2 doses of LLLT (1 h before and immediately after the insertion).
Material and Methods. This randomized controlled trial was conducted at the Department of Orthodontics, Faculty of Dentistry of University of Damascus and at the Department of Orthodontics of Adib-Allaham Center in Damascus, Syria. The sample population was comprised of 36 patients, aged between 12 and 25 years (mean age: 17 ±3.7 years), and the patients were randomly divided into 2 groups. A split-mouth design was employed. One group received 1 dose of laser therapy 1 h before the insertion of elastomeric separators, whereas the other one received 2 doses of laser therapy – 1 h before and immediately after the insertion of elastomeric separators. A GaAlAs laser with a wavelength of 830 nm and a power of 100 mW was used. The pain levels were recorded using the Visual Analog Scale (VAS) after 1, 6, 24, 48, and 96 h. Student’s t-test and the repeated measures analysis of variance (ANOVA) were employed to detect significant differences.
Results. Low-level laser therapy significantly reduced post-separation pain when the experimental side was compared to the placebo side in the single-irradiation group (p < 0.05). Low-level laser therapy significantly reduced separation pain with no statistical difference between single and double irradiation protocols (p > 0.05).
Conclusion. Low-level laser therapy had a positive effect on reducing the pain associated with elastomeric separation, whether it was applied as a single dose before elastomeric separation or as a double dose before and after this procedure.

Key words

pain control, low-level laser therapy, elastomeric separators, periodontal ligament pain

Słowa kluczowe

kontrola bólu, terapia laserem małej mocy, separatory elastomeryczne, ból więzadeł przyzębnych

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