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[Symphyseal distraction: a simplified procedure].

C Savoldelli1, V Lesne, E Ciszek

  • 1Département de chirurgie maxillofaciale et stomatologie, institut universitaire de la face et du cou, avenue Valembrose, 06000 Nice, France. csavoldelli@yahoo.fr

Revue De Stomatologie Et De Chirurgie Maxillo-Faciale
|November 27, 2010
PubMed
Summary

Symphyseal distraction using a dental-anchored device effectively treats mandibular deficiency, increasing inter-canine width without complications. This simplified technique offers a reliable alternative to tooth extraction for severe crowding.

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Area of Science:

  • Orthodontics
  • Oral and Maxillofacial Surgery

Background:

  • Severe mandibular incisor crowding with bone insufficiency often requires dental extractions.
  • Symphyseal distraction is an alternative but considered invasive and complex.
  • This study evaluates a simplified symphyseal distraction protocol.

Purpose of the Study:

  • To clarify indications for symphyseal distraction.
  • To propose a simplified surgical protocol for mandibular expansion.

Main Methods:

  • Six patients underwent symphyseal distraction (3 bone-anchored, 3 dental-anchored).
  • Pre- and postoperative inter-canine measurements and occlusal stability were analyzed.

Main Results:

  • Inter-canine width increased by a mean of 5.2mm (3.4mm to 6.8mm).

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  • All patients achieved Angle class I occlusion without complications.
  • Dental-anchored devices simplified the surgical procedure.

    • Conclusions:

    • Dental-anchored symphyseal distraction is a simple, efficient, and reliable method for severe transverse mandibular deficiency.
    • Orthodontists can manage this procedure independently.
    • The technique allows controlled expansion based on specific patient needs.