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Related Experiment Videos

Maxillary advancement by distraction osteogenesis using osseointegrated implants

H Yamamoto1, Y Sawaki, H Ohkubo

  • 1Department of Oral Surgery, Nagoya University, School of Medicine, Japan.

Journal of Cranio-Maxillo-Facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
|August 1, 1997
PubMed
Summary

This study introduces a novel technique for maxillary distraction osteogenesis using implants and an intraoral device, achieving successful bone regeneration and significant maxillary advancement with enhanced stability.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomaterials Engineering
  • Regenerative Medicine

Background:

  • Maxillary hypoplasia requires surgical correction, often involving complex osteotomies and bone grafting.
  • Distraction osteogenesis offers an alternative for skeletal advancement, but intraoral fixation methods present challenges.

Purpose of the Study:

  • To establish and evaluate a new technique for maxillary distraction osteogenesis.
  • To utilize osseointegrated titanium implants for stable anchorage of an intraoral distraction device.
  • To achieve predictable maxillary elongation with minimal complications.

Main Methods:

  • Four titanium implants were placed in the maxillary alveolar bone after tooth extraction.
  • An intraoral distraction device was connected to the implants after a 3-month osseointegration period.

Related Experiment Videos

  • A medial maxillary osteotomy was performed, followed by distraction at 1 mm/day to achieve 10 mm of elongation.

    • Main Results:

    • Successful maxillary advancement was confirmed through morphological, radiographic, and histological examinations.
    • New bone formation occurred via intramembranous and partial endochondral ossification.
    • The titanium implants demonstrated stable anchorage throughout the distraction process.

    Conclusions:

    • The described technique provides a stable and effective method for significant maxillary advancement.
    • This approach avoids the need for bone grafting in correcting maxillary deformities.
    • The system is applicable to various maxillary deformities requiring surgical correction.