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Three-Dimensional Assessment of Mandibular Condylar Volume and Position Subsequent to Twin Block Functional Therapy of Skeletal Class II Malocclusion Accompanied by Low-Level Laser Therapy

Department of Orthodontics, Faculty of Dental Medicine (Boys), Al-Azhar University, Cairo 11651, Egypt
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Dent. J. 2020, 8(4), 115; https://doi.org/10.3390/dj8040115
Received: 7 July 2020 / Revised: 1 September 2020 / Accepted: 14 September 2020 / Published: 9 October 2020
This study aimed to evaluate and compare the effect of low-level laser therapy (LLLT) on mandibular condylar volume and position following treatment of a Class II malocclusion with a twin block (TB) appliance employing cone beam computed tomography (CBCT). Twenty-four growing patients, aged 9–12 years, were randomly allocated into control and laser groups. All patients were treated with a TB appliance. The patients in the laser group were treated weekly with a gallium–aluminum–arsenide (GaAlAs) diode laser around the temporomandibular joint (TMJ) region for three months. CBCT images were obtained before and after TB therapy and the changes in TMJ and skeletal variables were evaluated and compared among and between the groups. In the laser group, the condylar volume of the right and left sides significantly increased by 213.3 mm3 and 231.2 mm3, respectively (p < 0.05), whereas in the control group it significantly increased by 225.2 mm3, and 244.2 mm3, respectively (p < 0.05), with forward and lateral positioning of both sides. Furthermore, effective mandibular, ramus, and corpus lengths were increased, which were not significant between the groups. Low-Level Laser therapy accomplished no considerable effect on mandibular condylar volume and position following the functional orthopedic treatment of skeletal Class II malocclusions using a TB appliance. View Full-Text
Keywords: low-level laser therapy; twin block; skeletal class II malocclusion; condylar volume and position; cone beam computed tomography low-level laser therapy; twin block; skeletal class II malocclusion; condylar volume and position; cone beam computed tomography
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MDPI and ACS Style

Hameed Mohamed, M.A.; Abdallah, K.F.; Hussein, F.A. Three-Dimensional Assessment of Mandibular Condylar Volume and Position Subsequent to Twin Block Functional Therapy of Skeletal Class II Malocclusion Accompanied by Low-Level Laser Therapy. Dent. J. 2020, 8, 115. https://doi.org/10.3390/dj8040115

AMA Style

Hameed Mohamed MA, Abdallah KF, Hussein FA. Three-Dimensional Assessment of Mandibular Condylar Volume and Position Subsequent to Twin Block Functional Therapy of Skeletal Class II Malocclusion Accompanied by Low-Level Laser Therapy. Dentistry Journal. 2020; 8(4):115. https://doi.org/10.3390/dj8040115

Chicago/Turabian Style

Hameed Mohamed, Mahmoud A., Khaled F. Abdallah, and Farouk A. Hussein 2020. "Three-Dimensional Assessment of Mandibular Condylar Volume and Position Subsequent to Twin Block Functional Therapy of Skeletal Class II Malocclusion Accompanied by Low-Level Laser Therapy" Dentistry Journal 8, no. 4: 115. https://doi.org/10.3390/dj8040115

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