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Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion

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Published on: October 20, 2023

Lateral cephalometry changes after SARPE.

A Parhiz¹, S Schepers, I Lambrichts

¹Department of Oral Maxillofacial Surgery, St. John's Hospital, Genk, Belgium.

International Journal of Oral and Maxillofacial Surgery

|April 15, 2011

Summary

This summary is machine-generated.

Surgically assisted rapid palatal expansion (SARPE) in orthognathic patients causes significant clockwise rotation of the maxilla. This cephalometric analysis reveals key changes in sagittal plane measurements post-SARPE.

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Area of Science:

Dentistry
Orthodontics
Maxillofacial Surgery

Background:

Surgically assisted rapid palatal expansion (SARPE) is a common procedure to correct maxillary transverse deficiency.
Postoperative cephalometric changes following SARPE, particularly in the sagittal plane, require thorough investigation in orthognathic surgery patients.

Purpose of the Study:

To analyze sagittal plane cephalometric changes after surgically assisted rapid palatal expansion (SARPE) in orthognathic patients.
To evaluate the impact of SARPE as a preparatory step for subsequent orthodontic treatment and orthognathic surgeries (Le Fort I, BSSO, or bimaxillary).

Main Methods:

Retrospective review of 50 orthognathic patients (20 males, 30 females) who underwent SARPE.
Cephalometric analysis of changes in angles including PP-SN, SNA, ANB, U1-SN, U1-PP, SNB, PP-Mand plane angle, and SN-Mand. plane angle.

Main Results:

Statistically significant increases were observed in PP-SN, SNA, and ANB angles.
Statistically significant decreases were noted in U1-SN and U1-PP angles.
No significant changes were found in SNB, PP-Mand plane angle, and SN-Mand. plane angle.

Conclusions:

Surgically assisted rapid palatal expansion, particularly with bone-borne appliances, leads to a significant clockwise rotation of the maxilla.
These findings provide valuable insights into the sagittal cephalometric alterations associated with SARPE in the context of comprehensive orthognathic treatment.