Characteristics of skeletal class III subjects with and without obstructive sleep apnea.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20260208004

Enrollment

Registered

2026-02-08

Start date

2026-01-26

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

The subjects who diagnosed as mandibular prognathism or skeletal class III malocclusion and underwent mandibular setback surgery. skeletal class III malocclusion, obstructive sleep apnea

Interventions

Subjects with obstructive sleep apnea,Subjects without obstructive sleep apnea

Screening,Screening

OSA,Non OSA

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Diagnosis of skeletal class III malocclusion, 2. Diagnosis of OSA or non-OSA, and, 3. Adult subjects >18 y of age, 4. ASA physical status I or II, 5. Availability of complete clinical, cone-beam computed tomography (CBCT), screening OSA questionnaires and sleep study results

Exclusion criteria

Exclusion criteria: 1. Presence of uncontrolled systemic diseases or use of medications known to affect sleep, 2. Craniofacial syndrome diagnosis, 3. History of prior orthognathic surgery or naso-oropharyngeal surgery

Design outcomes

Primary

Measure	Time frame
Age None Year,Sex None Male/female ,BMI None Kg/m2,Neck circumference None cm,Mallampati classification None I, II, III, IV	—

Secondary

Measure	Time frame
Radiograph None 2D airway (such as PAS, MPH, etc.) and 3D airway (such as TAV, AL, minCSA, etc.),Sleep None Thai-version of ESS and the STOP-BANG questionnaire, sleep result	—

Countries

Thailand

Contacts

Public ContactWichuda Kongsong

Faculty of Dentistry, Chulalongkorn University

wichuda.k@chula.ac.th022188590

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026