Acta Cirurgica Brasileira | |
Bone tissue microscopic findings related to the use of diode laser (830etam) in ovine mandible submitted to distraction osteogenesis | |
Arlei Cerqueira2  Roger Lanes Silveira1  Marília Gerhardt De Oliveira1  Manoel Sant'ana Filho1  Cláiton Heitz1  | |
[1] ,Roberto Santos Hospital Department of Oral and Maxillofacial Surgery and Traumatology Salvador Bahia ,Brazil | |
关键词: Lasers; Bone lengthening; Wound healing; Sheep; Lasers; Alongamento ósseo; Cicatrização de feridas; Ovinos; | |
DOI : 10.1590/S0102-86502007000200003 | |
来源: SciELO | |
【 摘 要 】
PURPOSE: To analyze the microscopic characteristics of the effect of Gallium-Aluminum Arsenid diode laser (GaAlAs - 830etam) 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/cm² 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 1mm/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.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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