Single-arm clinical study of orthodontic brackets with square slots

Recruiting

Recruitment & Eligibility

Inclusion Criteria

Patients with anterior crowding
Patients with the following conditions (1) Arch length discrepancy less than -3.0 mm (2) ANB between 1.0 and 5.0 degrees (3) Deviation of the Menton less than 2.0 mm (4) Periodontal pocket depth less than 4.0 mm with no mobility
Patients aged between 18 and 40 years old
Patients with consent to participate in this clinical trial

Exclusion Criteria

Patients with a history of orthodontic treatment
Patients with jaw deformity requiring a surgical intervention
Patients with moderate or severe alveolar bone resorption
Patients with an abnormal number of teeth (excluding third molars)
Patients with active periodontitis
Patients under medication related to bone metabolism (bisphosphonates etc.), steroids, sympathetic blockers, or antidepressants (at least 6 months drug cessation is acceptable)
Patients with severe mental disorders
Patients with a history of serious allergy to metals
Patients with a disease requiring urgent treatments or a serious complication
Patients in participation in research on other drugs, medical devices, or food products
Patients being pregnant or may become pregnant
Patients being breastfeeding
Other persons who are deemed by the principal investigator sub-investigator) to be inappropriate to participate in this trial

Primary Outcome Measures

Name	Time	Method
-		Crowding relief period

Secondary Outcome Measures

Name	Time	Method