defect of dentition
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 20-45 years old; 2. single upper central incisor missing at least 4 months; 3. both mesial and distal adjacent natural teeth existed; 4. signed informed consent.
Exclusion criteria
Exclusion criteria: 1. present systemic disease; 2. uncontrolled periodontal diseases and/or caries; 3. history of radiation therapy in the head and neck region or chemotherapy within 5 years; 4. present administration of corticosteroids or anticoagulants; 5. present alcohol and/or smoke abuse.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| PES; | — |
Countries
China
Contacts
Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine