Effects of low-level laser therapy on bone regeneration of the midpalatal suture after rapid maxillary expansion
| Autor: | Lúcio Mitsuo Kurita, Karina Matthes de Freitas Pontes, Pedro César Fernandes dos Santos, Maria Walderez Andrade de Araújo, Juliana Oliveira Gondim, José Jeová Siebra Moreira Neto, Fabíola Nogueira Holanda Ferreira |
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| Rok vydání: | 2015 |
| Předmět: |
Male
Cone beam computed tomography Palatal Expansion Technique Bone Regeneration Adolescent medicine.medical_treatment Dentistry Dermatology Bone remodeling 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine Medicine Humans Rapid maxillary expansion Low-Level Light Therapy Bone regeneration Midpalatal suture Low level laser therapy business.industry Palate Significant difference 030206 dentistry Cone-Beam Computed Tomography Surgery Female business |
| Zdroj: | Lasers in medical science. 31(5) |
| ISSN: | 1435-604X |
| Popis: | This study evaluated the effect of low-level laser therapy (LLLT) on bone regeneration at the midpalatal suture (MPS) after rapid maxillary expansion (RME), using cone beam computed tomography. Fourteen 8-14-year-old patients with transverse maxillary deficiency underwent RME with a Hyrax-type expander activated with one full turn after installation and two half turn daily activations until achieving overcorrection. Patients were randomly assigned to either a control group (RME alone, n = 4) or an experimental group (n = 10) in which RME was followed by 12 LLLT sessions (GaAlAs, p = 70 mW, λ = 780 nm, O = 0.04 cm(2)). Two tomographic images of the MPS were obtained-T0, after disjunction and T1, after 4 months. Bone regeneration was evaluated by measuring the optical density (OD) on the tomographic images using InVivo Dental 5.0 software. Data were analyzed by the paired Student's t test (α = 0.05 %). A statistically significant difference between T0 and T1 OD values was observed in the laser-treated group (p = 0.00), but this difference was not significant in the control group (p = 0.20). Intergroup comparison of OD values at T1 revealed higher OD in the laser-treated group (p = 0.05). In conclusion, LLLT had a positive influence on bone regeneration of the midpalatal suture by accelerating the repair process. |
| Databáze: | OpenAIRE |
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