Accuracy of predicting the pharyngeal airway space on the cephalogram after mandibular setback surgery
| Autor: | Toshitaka Muto, Yasunori Sato, Shigehiro Takeda, Atsue Yamazaki |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Adult
Cephalometry medicine.medical_treatment Oral Surgical Procedures Dentistry Mandible Osteotomy Predictive Value of Tests Medicine Humans business.industry Pharynx Craniometry medicine.disease Airway Obstruction medicine.anatomical_structure Malocclusion Angle Class III Otorhinolaryngology Predictive value of tests Prognathism Regression Analysis Surgery Female Oral Surgery Malocclusion Airway business Cephalogram Algorithms |
| Zdroj: | Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons. 66(6) |
| ISSN: | 1531-5053 |
| Popis: | Purpose The aim of the present study was to evaluate the accuracy of a formula predicting the change of pharyngeal airway space (PAS) on the cephalogram after mandibular setback surgery. Patients and Methods Twenty-nine female adults with mandibular prognathism underwent surgery by bilateral sagittal split ramus osteotomy. The postoperative anteroposterior (A-P) PAS dimension was calculated from the change of C3-Me (distance between the anteroinferior point of the third cervical vertebra and menton) using 2 cephalograms taken before treatment and at 1 year after surgery. The regression equation used was y = −21.105 + 0.402x (y: PAS; x: C3-Me; r = 0.854). Results The predicted and measured values were nearly same on average, and the difference between both ranged within ±1.5 mm for each case individually. Conclusion This study suggested that the postoperative A-P PAS dimension can be predicted from the change in C3-Me, matching the amount of the mandibular setback. |
| Databáze: | OpenAIRE |
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