[en] [en] BACKGROUD AND AIMS: There are very few studies on laser phototherapy (LPT) in acute temporomandibular disorders (TMDs). Our objective is to assess the effectiveness of laser phototherapy (LPT) on the limitation of the mouth opening due to an acute mandibular trauma.
SUBJECTS AND METHODS: Fourteen women of 41 ± 3 years and 24 men of 38 ± 3 years, with no history of TMD and having sustained a mandibular trauma within the prior 20 hours, were treated exclusively by using an 810-nm laser beam in a continuous wave mode, with an output power of 1 W. At a speed of 2 cm/s, it scanned twice, for 60 seconds, with a pause in between of 2 minutes, a large cutaneous area (25 cm2), covering the temporomandibular joint (TMJ), the masseter muscle and a part of the temporalis fossa; also, it scanned just once, for 7 seconds, a small mucous area (3 cm2), covering the internal pterygoid muscle. The clinical outcomes were evaluated by comparing the maximum unassisted opening (MUO), measured at the baseline and immediately after the end of the LPT procedure.
RESULTS: The MUO improvement of 24.6 ± 4.4 mm represented a highly significant difference (p < .0001) between the measurements, in all the patients, regardless of gender.
CONCLUSIONS: By scanning with an 810-nm laser beam, within less than 20 hours after the trauma, large areas of all the involved tissues and not just a few points, as described until now, the limited mouth opening in acute posttraumatic trismus was immediately and greatly resolved.
Disciplines :
Dentistry & oral medicine
Author, co-author :
Rasca, Emilia; Department of Dental Sciences, Faculty of Medicine, University of Liège, Belgium Institut de dentisterie - Polycliniques Brull, Liège, Belgium
Namour, Amaury; Department of Dental Sciences, Faculty of Medicine, University of Liège, Belgium Institut de dentisterie - Polycliniques Brull, Liège, Belgium
Fauchon-Giumelli, Aude; Department of Dental Sciences, Faculty of Medicine, University of Liège, Belgium Institut de dentisterie - Polycliniques Brull, Liège, Belgium
Namour, Samir ; Université de Liège - ULiège > Département des sciences dentaires
Language :
English
Title :
Laser phototherapy in acute posttraumatic trismus - Case-series study.
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