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Low-level laser effect on mandibular distraction osteogenesis.

Michael Miloro1, Jason J Miller, Julie A Stoner

  • 1Section of Oral and Maxillofacial Surgery, University of Nebraska Medical Center, Omaha, NE 68198-5180, USA. mmiloro@unmc.edu

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
|January 24, 2007
PubMed
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Low-level laser (LLL) therapy accelerates bone regeneration during distraction osteogenesis. This innovative approach may shorten healing times and reduce patient morbidity by enabling earlier device removal.

Area of Science:

  • Regenerative Medicine
  • Orthopedic Surgery
  • Biophotonics

Background:

  • Distraction osteogenesis is a surgical technique used to repair bone defects.
  • Prolonged consolidation phases can lead to patient morbidity.

Purpose of the Study:

  • To investigate if low-level laser (LLL) application accelerates bone regeneration during distraction osteogenesis.
  • To determine if LLL reduces the consolidation phase and associated patient morbidity.

Main Methods:

  • Bilateral mandibular corticotomies were performed on rabbits with distraction devices.
  • One side received LLL treatment (6.0 J x 6) immediately after device activation.
  • Radiographic and histologic analyses, including Bone Healing Score (BHS), were used to assess bone regeneration.

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Main Results:

  • LLL-treated bone showed higher BHS radiographically at all time points.
  • Histologic examination revealed more advanced new bone formation and ossification in the LLL group.
  • Complete inferior border formation occurred sooner in the LLL-treated rabbits.

Conclusions:

  • Low-level laser therapy significantly accelerates bone regeneration during the consolidation phase of distraction osteogenesis.
  • Adjunctive LLL may shorten consolidation periods, allowing for earlier device removal and reduced patient morbidity.