Tooth defect
Conditions
Interventions
test group:minimally invasive crown
control group:full crown
Sponsors
Beijing Stomatological Hospital of Capital Medical University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patients aged 18-60 years. 2. The patients with the defect of bicuspid cavity and the defect of adjacent surface located above the gingiva, or only the defect of commissure. 3. Patients who have no clinical symptoms, the mobility is not greater than I degree. 4. Apical radiographs showed that there were no uncontrolled apical lesions in patients with perfect root canal treatment. 5. Patients who sign informed consent voluntarily.
Exclusion criteria
Exclusion criteria: 1. Teeth with large defect need post core crown. 2. There are less than 20 teeth with occlusal function in dentition. 3. The restored teeth have no occlusal function or the mobility of the teeth is II or above. 4. Patients with molars at night. 5. Patients with progressive periodontal disease. 6. Patients with subgingival defect. 7. Patients with crown height less than 6 mm. 8. No adjacency.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| success rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| marginal fit;Interproximal contact points;BI;secondary caries; | — |
Countries
China
Contacts
Public ContactLiu Xinggang
Beijing Stomatological Hospital
Outcome results
None listed