Malocclusion and Max./Mand. discrepancy
Conditions
Interventions
1:Corticotomy accelerating osteogenesis
2:conventianal conbined orthodontic and orthognathic treatment
Sponsors
Peking University, School of Stomatology
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. Aged 18-40 years old male or female; 2. Skeletal Class III patients, ANB=-5 degree; 3. Combined othodontic and orthognathic treatements; 4. Upper 14 and 24 needs to be removed during preoperative orthodontics; 5. Agreed to join this project and signd the informed consent forms.
Exclusion criteria
Exclusion criteria: 1. Pregnant or lactating women; 2. Tumor and systemic diseases; 3. Oral and maxillofacial acute inflammation, facial tumor; 4. Severe or progressive periodontitis; 5. Missing teeth; 6. Congenital cleft lip and cleft palate patients; 7. Facial and dental development significantly asymmetric patients; 8. Unwilling or unable to sign the informed consent; 9. Treatment plans to change the way; 10. For some reason the treatment can not be completed or failure to finished.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The time to close the denture space;The time of preoperative orthodontics;The time of after-operative orthodontics;The time of the whole treatment;The distalization distance of upper incisors;The mesial movement distance of upper first molars;The ratio of root length to crown length of upper centre incisors;The cortical bone thickness at the central incisor root apex level; | — |
Countries
China
Contacts
Public ContactJiang Jiuhui
Peking University, School and Hospital of Stomatology
Outcome results
None listed