endodontic lesions / periapical lesions in immature teeth
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. immature teeth 2. the endodontic or periapical lesions caused by dens evaginatus or dental trauma 3. the teeth have not been treated before 4. those who had not received antibiotic treatment during the previous 3 months 5. those who had not any general disease
Exclusion criteria
Exclusion criteria: 1. mature teeth 2. the endodontic or periapical lesions caused by other reasons, except dens evaginatus or dental trauma 3. the teeth have been treated before 4. those who had received antibiotic treatment during the previous 3 months 5. those who had any general disease
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 16S rRNA bacteria sequencing;the thickness of root canal wall;radiographic root area;radiographic canal area; | — |
Secondary
| Measure | Time frame |
|---|---|
| the length of tooth root; | — |
Countries
China
Contacts
Affiliated Stomatology Hospital of Zhejiang University