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Interexaminer reliability of two cephalometric methods to determine proximal segment position after bilateral
Hyun-Sil Choi1, Joe Rebellato, Hyun-Joong Yoon
1Division of Orthodontics, Department of Dental Specialties, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
The Angle Orthodontist
|April 28, 2006
Summary
This study found high agreement between two cephalometric methods for assessing jaw position changes after mandibular advancement surgery (BSSRO). These methods reliably track segment movement in 25 patients.
Area of Science:
- Orthodontics
- Oral and Maxillofacial Surgery
- Radiology
Background:
- Bilateral sagittal split ramus osteotomy (BSSRO) is a common surgical procedure for mandibular advancement.
- Accurate assessment of proximal segment positional changes is crucial for treatment outcomes.
- Existing cephalometric methods require reliable evaluation for clinical application.
Purpose of the Study:
- To evaluate the interexaminer reliability of two cephalometric methods.
- To determine the positional change of the proximal segment after BSSRO for mandibular advancement.
- To assess the agreement between two independent examiners using these methods.
Main Methods:
- A double-blind trial involving 25 patient records.
- Two investigators traced PA and lateral cephalometric radiographs at three time points: pre-surgery, immediately post-surgery, and post-orthodontic treatment.
- Interexaminer reliability was calculated using the intraclass correlation coefficient (ICC).
Main Results:
- The ICC values indicated substantial to almost perfect agreement between the two examiners.
- High reliability was observed for both cephalometric methods in assessing proximal segment position.
- The findings demonstrate consistent measurements across different time intervals and examiners.
Conclusions:
- The two evaluated cephalometric methods exhibit high interexaminer reliability for determining proximal segment positional changes after BSSRO.
- These methods are validated for use in assessing frontal and sagittal plane movements following mandibular advancement surgery.
- The study supports the consistent application of these techniques in clinical and research settings.
