Journal
ACTA CIRURGICA BRASILEIRA
Volume 22, Issue 2, Pages 92-97Publisher
ACTA CIRURGICA BRASILEIRA
DOI: 10.1590/S0102-86502007000200003
Keywords
lasers; bone lengthening; wound healing; sheep
Categories
Ask authors/readers for more resources
Purpose: To analyze the microscopic characteristics of the effect of Gallium-Aluminum Arsenid diode laser (GaAlAs-830 eta m) applied during the activation and consolidation period to ovine mandibles submitted to distraction osteogenesis. Methods: Eighteen sheep underwent surgery in order to have bone distractors implanted in the left side of the jaw area. They were divided into three groups: 1 - Control; 2 - Laser irradiation during the activation period; 3 - Laser irradiation during the fixation period. The irradiation was carried out in five sessions, on every other day, with 4,0J/cm(2) doses applied to four pre-established areas, totaling 16J per session. After four days of latency under post-operative care, ten days of distractor activation (at 1 mm/day) and twenty-one days of fixation the animals were sacrificed and the devices removed for microscopic analysis. Results: The groups that received laser irradiation (GaAlAs) presented a greater amount of mineralized bone trabeculae when compared to the Control Group. Despite that, cartilaginous tissues were also found in Group 2. Conclusion: The laser has been more favorable when used in the consolidation period, after bone elongation. Key words: Lasers. Bone lengthening. Wound healing. Sheep.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available