Lateral cephalometric analysis in a group of Thai patients with obstructive sleep apnoea syndrome

Authors

Chatpon Jamsirirojrat
Panunn Sastravaha
Prakobkiat Hirunwiwatkul
Sukalaya Lerdlum
Somchai Sessirisombat

Publication Date

2008-05-01

Abstract

Objective To evaluate the lateral cephalometric parameters in a group of Thai patients with severe obstructive sleep apnoea syndrome (OSAS) and primary snoring. Materials and methods This study was performed in the lateral cephalograms of 190 patients attending Snoring Clinic at King Chulalongkorn Memorial Hospital during 2003-2007. Using the respiratory disturbance index (RDI), the patients were divided into two groups, those with an RDI of five events/hour or below (primary snoring group) and those with an RDI of 30 events/hour or over (severe OSAS group). Their demographic data, along with nine parameter data from lateral cephalograms, were collected. Analyses of the data were performed by a descriptive statistic analysis and an independent t-test at the 95% confident level. Results Parameters with significant differences between primary snoring and severe OSAS groups were SNA and MP-H among male patients, and UT-PhW and MP-H among female patients. Conclusion Lateral cephalograms revealed differences between patients in severe OSA and those in primary snoring groups. Male patients with severe OSAS possessed a maxilla with a retrognathic position, together with a hyoid bone with an inferiorly displaced position. Female patients with severe OSAS possessed a narrower space between uvula tip and posterior pharyngeal wall, together with a hyoid bone with an inferiorly displaced position.

DOI

10.58837/CHULA.CUDJ.31.2.12

First Page

249

Last Page

260

Recommended Citation

Jamsirirojrat, Chatpon; Sastravaha, Panunn; Hirunwiwatkul, Prakobkiat; Lerdlum, Sukalaya; and Sessirisombat, Somchai (2008) "Lateral cephalometric analysis in a group of Thai patients with obstructive sleep apnoea syndrome," Chulalongkorn University Dental Journal: Vol. 31: Iss. 2, Article 12.
DOI: 10.58837/CHULA.CUDJ.31.2.12
Available at: https://digital.car.chula.ac.th/cudj/vol31/iss2/12