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Three-dimensional evaluation of changes in the anterior alveolar bone by orthodontic extraction treatment

Three-dimensional evaluation of changes in the anterior alveolar bone by orthodontic extraction treatment

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR-OOB-16007838
Enrollment
Unknown
Registered
2016-01-26
Start date
2016-02-15
Completion date
Unknown
Last updated
2017-04-18

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

Conditions

malocclusion

Interventions

bimaxillary protrusion &non-crowding group:orthodontic treatment
bimaxillary protrusion &moderate-crowding group:orthodontic treatment

Sponsors

Stomatology hospital of Peking university
Lead Sponsor

Eligibility

Sex/Gender
All
Age
13 Years to 35 Years

Inclusion criteria

Inclusion criteria: 1. permanent dentiton; 2. Class I molar relationship; 3. upper and lower lips exceed the E-line.

Exclusion criteria

Exclusion criteria: 1. moderate and severe periodontitis; 2. congenital missing teeth; 3. severe skeletal malformation.

Design outcomes

Primary

MeasureTime frame
alveolar bone thickness;alveolar bone height;alveolar bone lesion;—

Secondary

MeasureTime frame
cephalometric index;—

Countries

China

Contacts

Public ContactLi Weiran
weiranli2003@163.com+86 13552820907

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026