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Related Experiment Videos

Predictability of bimaxillary orthognathic surgery using "piggyback" intermediate splints.

N Stefanova1, J P Stella

  • 1Department of Oral and Maxillofacial Surgery, John Peter Smith Health Network, Fort Worth, Texas, USA.

The International Journal of Adult Orthodontics and Orthognathic Surgery
|April 20, 2001
PubMed
Summary

This study demonstrates that a "piggyback" intermediate splint accurately transfers planned surgical movements in bimaxillary orthognathic surgery. Predictable skeletal results with minimal discrepancies were achieved in all patients.

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Area of Science:

  • Orthodontics and Maxillofacial Surgery
  • Skeletal Malocclusion Correction

Background:

  • Bimaxillary orthognathic surgery corrects complex skeletal malocclusions.
  • Achieving predictable surgical outcomes is crucial for patient satisfaction and treatment success.

Purpose of the Study:

  • To evaluate the accuracy of a "piggyback" intermediate splint in transferring planned surgical movements during bimaxillary orthognathic surgery.
  • To assess the predictability of skeletal results in patients with Class II malocclusion and anterior open bite.

Main Methods:

  • Ten patients with symmetric skeletal Class II malocclusion and anterior open bite underwent bimaxillary surgery.
  • Cephalometric prediction tracings were used to guide model surgery and create a "piggyback" intermediate splint.
  • The splint facilitated intraoperative transfer of planned dimensional changes, excluding vertical adjustments.

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Main Results:

  • The "piggyback" intermediate splint accurately transferred planned surgical movements.
  • No discrepancies greater than 2 mm were observed between predicted and actual skeletal outcomes.
  • The technique demonstrated high predictability for bimaxillary orthognathic surgery.

Conclusions:

  • The "piggyback" intermediate splint is a reliable tool for predictable surgical outcome transfer in bimaxillary orthognathic procedures.
  • This method enhances accuracy in correcting skeletal Class II malocclusion with anterior open bite.
  • The study supports the use of this splint for improved surgical precision.