[The primarily study on the correlation between the cephalometric characteristics and the results of ploysomnography]

A study on correlation between temporomandibular joint ankylosis and Obstructive Sleep Apnea Syndrome (OSAS) was conducted. The statistic results demonstrate that there is significant correlation between (TA + SPA)/OPA and AI, and there is negative correlation between PAS and AI, (TA + SPA)/OPA and SaO2min by correlation and step regression between the cephalometric analysis and polysomnogram of fourteen cases of OSAS patients.