Malocclusion
Conditions
Interventions
Observation group:None
Sponsors
The First Affiliated Hospital of Dalian Medical University
Eligibility
Sex/Gender
Female
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1.The Han population in Dalian, China; 2. Age: 18 to 40, female; 3. Those who breathe through the nose; 4. Permanent dentition: The second molars have fully erupted, with no missing, supernumerary or impacted teeth (except for the third molars).
Exclusion criteria
Exclusion criteria: 1. Previous orthodontic treatment history, craniofacial trauma history, and craniofacial surgery history; 2. There is a current medical history or previous pathological conditions in the maxillary sinus; 3. Obvious maxillary deformities, including asymmetry; 4. Cleft lip and palate or history of cleft lip and palate treatment; 5. Absence of maxillary molars or anterior molars; 6. Those with chronic rhinitis or deviated nasal septum; 7. Those who breathe through their mouths.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Maxillary sinus volume;Maxillary sinus surface area; | — |
Secondary
| Measure | Time frame |
|---|---|
| Maxillary sinus width;Maxillary sinus height;Maxillary sinus depth; | — |
Countries
China
Contacts
Public ContactWang Bo
The First Affiliated Hospital of Dalian Medical University
Outcome results
None listed