dental caries
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 6-7 years; 2. In good general condition, no acute or chronic diseases, gingivitis or oral ulcers, and no history of long-term drug use; 3. Have not participated in other research projects, and can participate in this project for 36 consecutive months; 4. No history of allergies; 5. Sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Abnormal tooth development, such as enamel hypoplasia and dental fluorosis; 2. Fossa and groove were closed during baseline examination; 3. Those who cannot cooperate with inspection, fluorination and pit and ditch sealing.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the mean decay, missing, filled surfaces of first permanent molars;the mean decay, missing, filled teeth of first permanent molars;the dental caries prevalence of first permanent molars;the cost of pit and fissure sealants;the cost of topical application of fluoride varnish; | — |
Countries
China
Contacts
Peking University Third Hospital