Chalk spot
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. All patients were treated with orthodontic technique of straight wire bow and fixed orthodontic treatment of whole mouth; 2. No demineralization of tooth surface at initial diagnosis; 3. No history of orthodontic or orthognathic treatment; 4. Right-handed people have the habit of brushing their teeth every morning and evening, and compliance is good; 5. Patients with permanent dentition had no severe caries, dental fluorosis, tetracycline, enamel hypoplasia, marginal gingivitis, periodontitis, or oral mucosal diseases. 6. Good general health, no systemic diseases, oropharyngeal diseases or oral respiratory habits.
Exclusion criteria
Exclusion criteria: 1. Mineralized treatment and minimally invasive aesthetic treatment; 2. Dental filling and restoration; 3. Tetracycline teeth and fluorosis teeth; 4. Quit the study for various reasons.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Demineralization index;Demineralized area; | — |
Countries
China
Contacts
Stomatology Hospital of Jilin University