The radiological and stereological analysis of the effect of low-level laser therapy on the Mandibular midline distraction Osteogenesis
Journal of Craniofacial Surgery, cilt.26, sa.7, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 26 Sayı: 7
- Basım Tarihi: 2015
- Doi Numarası: 10.1097/scs.0000000000002046
- Dergi Adı: Journal of Craniofacial Surgery
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Anahtar Kelimeler: Bone Healing, Distraction osteogenesis, Low-Level Laser Therapy
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
Objective: The aim of this study was to evaluate the effect of low level laser therapy (LLLT) on bone mineral density by using highresolution computerized tomography (HR-CT) and stereology in patients subjected to mandibular midline distraction. Methods: Nine patients between the ages of 13 and 16 years with mandibular transverse deficiency (<5 mm) were evaluated. Mandibular midline distraction osteogenesis was performed for all the patients. The patients were divided into 2 groups: The control group (n=4) and the laser group (n=5). GaAlAs, 830 nm wavelength, power of 40 mW, energy of 8.4 J/cm2 dose per spot, was directly applied from 2 points on the mandibular midline. The laser was applied in 8 treatment sessions at 48-hour intervals. Bone mineral density and volume of the newly formed bone were analyzed using HR-CT and stereological methods. Results: A higher bone mineral density rate was found in the laser group (P>0.05). A higher newly formed immature bone rate was found in the control group (P>0.001). These findings suggest that more mature bone may also have a greater mineral organization than that of immature newly formed bone, which is shown by HR-CT and stereological results. Conclusions: The retention period can be shortened and mineralization may be increased by using LLLT in mandibular distraction osteogenesis.