6533b7d6fe1ef96bd12667f5

RESEARCH PRODUCT

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

Adriana EtgesPaulo-eduardo KreisnerManoel Santana-filhoDiego-segatto BlayaMarconi-eduardo-sousa Maciel-santosLêonilson GaiãoMarília-gerhardt De Oliveira

subject

Distraction osteogenesismedicine.medical_treatmentOsteogenesis DistractionLaser na odontologiaDentistryMandibleMandibula [Cirurgia]Bone LengtheningLaser therapyBasic researchmedicineAnimalsLow-Level Light TherapyGeneral DentistryLow level laser therapybusiness.industryLasersMandible:CIENCIAS MÉDICAS [UNESCO]OtorhinolaryngologyBone consolidationUNESCO::CIENCIAS MÉDICASDistraction osteogenesisSurgeryTreatment timeRabbitsBasic researchbusinessPhysical process

description

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 (?=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.

yearjournalcountryeditionlanguage
2009-07-01
10.4317/medoral.15.e616http://hdl.handle.net/10550/60299