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[Distraction osteogenesis for correction of maxillary constriction].

Y Zhou1, X Wang, Y Lin

  • 1Department of Orthodontics, School of Stomatology, Beijing Medical University, Beijing 100081, China.

Zhonghua Kou Qiang Yi Xue Za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology
|January 10, 2002
PubMed
Summary

Distraction osteogenesis effectively corrects maxillary constriction by expanding the upper arch, maxilla, and dental base. New bone formation within two weeks supports the stability of this rapid maxillary expansion technique.

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Area of Science:

  • Orthodontics and Maxillofacial Surgery
  • Regenerative Medicine
  • Craniofacial Development

Context:

  • Maxillary constriction presents significant challenges in orthodontic and surgical treatment planning.
  • Traditional methods for maxillary expansion may have limitations in achieving desired outcomes.
  • Distraction osteogenesis offers a biological approach to bone regeneration and skeletal expansion.

Purpose:

  • To evaluate the efficacy and outcomes of distraction osteogenesis for correcting maxillary constriction.
  • To assess the skeletal and dental changes following rapid maxillary expansion using this technique.
  • To analyze the bone formation and healing process after surgical intervention.

Summary:

  • This study investigated distraction osteogenesis in 10 patients (aged 16-33) with maxillary constriction, utilizing Le Fort I and palatal osteotomies followed by Hyrax expander activation.

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  • Radiographic analysis revealed significant expansion of the maxilla (3.84 mm), maxillary dental base (3.25 mm), and posterior teeth (5.61 mm).
  • New bone formation was observed within two weeks, with complete suture ossification in 2-3 months, though minor buccal tipping of maxillary teeth occurred.

    • Impact:

    • Distraction osteogenesis provides a viable and effective method for correcting maxillary constriction, offering predictable skeletal expansion.
    • The technique promotes new bone formation, ensuring stability and successful long-term outcomes in craniofacial reconstruction.
    • This approach enhances treatment options for patients with severe maxillary hypoplasia and dental crowding.