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Erschienen in: Lasers in Dental Science 3/2022

20.05.2022 | Original Article

Effect of low-level laser therapy on condylar growth in children treated with functional appliance: a preliminary study

verfasst von: Mohamed E. Amer, Abbadi ElKadi, Mohamed Nadim, Youssef Sedky

Erschienen in: Lasers in Dental Science | Ausgabe 3/2022

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Abstract

Purpose

This study aimed to evaluate the skeletal and dentoalveolar changes achieved by combining low-level laser irradiation applied on the condyle area with twin-block therapy in growing class II malocclusion patients.

Methods

Fourteen patients (9 males, 5 females; mean age, 11.4 ± 2 years) with skeletal class II mandibular deficiency were recruited. They were divided into two groups (G 1: twin-block + low-level laser therapy, G 2: twin-block only). A semiconductor diode laser with a wavelength of 940 nm was applied on the condyle area (100 mW, 2.5 J, 3.9 J/cm2). The laser was applied twice a week in the first month and once a week in the second and third months, totalizing 16 sessions. Skeletal, dental, and soft-tissue cephalometric parameters were measured and compared at different treatment points.

Results

Mandibular length (Co-Gn) was significantly increased by 3.6 mm in the experiment group (3.16 SD) and 4.3 mm (4.4 SD) in the control group, with no significant difference between groups at every time point (P-value 0.949 at T2). Similarly, a statistically significant positive effect of treatment was found in both groups on ramus height (Co-Go), upper lip to E-Line, SNA angle, ANB angle, and U1/SN angle with no significant difference between groups.

Conclusion

Based on the results of this preliminary study, low-level laser irradiation with the used parameters seems to have no synergetic impact on the skeletal and dental outcomes of twin-block therapy over 9 months. However, more studies are needed to investigate the effect of low-level laser therapy on condylar growth during functional orthodontic treatment.
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Literatur
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Metadaten
Titel
Effect of low-level laser therapy on condylar growth in children treated with functional appliance: a preliminary study
verfasst von
Mohamed E. Amer
Abbadi ElKadi
Mohamed Nadim
Youssef Sedky
Publikationsdatum
20.05.2022
Verlag
Springer International Publishing
Erschienen in
Lasers in Dental Science / Ausgabe 3/2022
Elektronische ISSN: 2367-2587
DOI
https://doi.org/10.1007/s41547-022-00158-x

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