class ?, division 1 malocclusion
Conditions
Interventions
control group:standardized treatment protocol using Modified Twin Block (MTB) braces
trial group:standardized treatment protocol using Modified Twin Block (MTB)
Sponsors
Children’s Hospital affiliated to Capital Institute of Pediatrics
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: ? diagnosis of class ?, division 1 malocclusion according to British Standards Institute; ? distal molar occlusion, overjet (OJ) =5.0 mm; ? Class II skeletal type, ANB angle >4°; ? 7-11 years of age at the start of treatment (late mixed or early permanent dentition); ? willing to complete the allocated treatment and follow-up assessment.
Exclusion criteria
Exclusion criteria: Participants who reported history of previous orthodontic treatment, or with severe maxillary prognathism, severe dental crowding (=5 mm), lower incisor protrusion and congenitally missing teeth were excluded from the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| active (Phase 1) treatment duration; | — |
Secondary
| Measure | Time frame |
|---|---|
| Oral Aesthetic Subjective Impact Score;the lateral cephalometric X-rays; | — |
Countries
China
Contacts
Public ContactXinmeng Wang
Children’s Hospital affiliated to Capital Institute of Pediatrics
Outcome results
None listed