Effect of irradiation of 810nm laser on bone for 10 sec: A rabbit histological study
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2019, Vol 18, Issue 3
Abstract
Introduction and Objective In last decade, low level laser therapy has been evaluated for stimulation and acceleration of bone formation. In spite of promising results, biphasic ‘dose’ response remains. Moreover, the use of single session of low level laser on healing of bone is not explored thoroughly. The aim of this study was to determine the optimal ‘dosage’ for formation of bone using diode laser of 810nm under single irradiation. Materials and Methods Six New Zealand male rabbits were used weighing 1.5-2 Kgs and 8-10 months old for the study. Femur was chosen as site of surgery. The centre of the femur was drilled using implant osteotomy drills to the size of 2.8mm in width and 6mm in depth. 810nm Diode laser (GaAlAs, AMD Picasso®) was used in this study. Laser parameters were, wavelength of 810nm, power of 90mW, time of 10 seconds in continuous mode using the disposable fibre of 300µmm diameter in light noncontact. Contra lateral femur was used as a control and the laser was sham treated. At the end of 2 weeks samples were collected from the surgical area and slides were prepared and analysed histologically. Results At 14th day, the lased group showed slight areas of haemorrhage in marrow cavity with no evidence of bone formation in lased site. Conclusion The results of the present study using 810nm, 90mW, for 10 sec for single session did not stimulate formation of new bone in two weeks.
Authors and Affiliations
Dr Shrikar R. Desai, Dr Jayashree A. Mudda, Dr Veena A. Patil, Dr Maharudrappa B. , Dr Satish B. N. V. S.
Keywords
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- EP ID EP557214
- DOI 10.9790/0853-1803121420.
- Views 58
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