Primary dental caries
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Children aged 3-5 with caries and children without caries; 2. No less than 18 teeth; 3. Not wearing various orthodontic appliances and accessories; 4. No bacterial or viral infection in other parts of the body.
Exclusion criteria
Exclusion criteria: 1. Suffering from enamel hypoplasia or other oral diseases; 2. Fluoride, microecological regulators and immunosuppressants have been used within 3 months; 3. Those who have an oral orthodontic treatment plan within 6 months; 4. There are systemic diseases or congenital diseases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Raw reads; | — |
Secondary
| Measure | Time frame |
|---|---|
| OTUs number;Alpha diversity index;Beta diversity index; | — |
Countries
China
Contacts
School of Stomatology, the Fourth Military Medical University