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Histological evaluation of the effect of low-level laser on distraction osteogenesis in rabbit mandibles

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Histological evaluation of the effect of low-level laser on distraction osteogenesis in rabbit mandibles

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Título Histological evaluation of the effect of low-level laser on distraction osteogenesis in rabbit mandibles
Autor Kreisner, Paulo Eduardo
Blaya, Diego Segatto
Gaião, Leonilson
Santos, Marconi Eduardo Sousa Maciel
Etges, Adriana
Sant'Ana Filho, Manoel
Oliveira, Marilia Gerhardt de
Abstract Objectives: This study evaluated the action of low level laser therapy (LLLT) on the percentage of newly formed bone in rabbit mandibles that underwent distraction osteogenesis (DO). Study design: Ten rabbits underwent bone lengthening according to the following protocol: Latency – 3 days; Activation – 7 days 0.7 mm/d; and Consolidation – 10 days. The control group was composed of 4 rabbits. The experimental group, composed of 6 rabbits, received infrared GaAlAs LLLT (λ=830 nm, P=40 mW) according to the following protocol: point dose of 10 J/cm2 applied directly on the bone site that underwent DO during bone consolidation at 48-hour intervals. Results: The percentage of newly formed bone was greater in the LLLT group (57.89%) than in the control group (46.75%) (p=0.006). Conclusion: The results suggest that LLLT had a positive effect on the percentage of newly formed bone. Betterquality bone sites may allow early removal of the osteogenic distractors, thus shortening total treatment time.
Contido em Medicina oral, patología oral y cirugía bucal. Valencia. Vol. 15, no. 4 (July 2010), p. e616-e618
Assunto Cirurgia : Mandibula
Laser na odontologia
[en] Basic research
[en] Distraction osteogenesis
[en] Lasers
[en] Physical process
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/61371
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