oral
Conditions
Interventions
ceramic crown group:Crown Restoration
Porcelain fused to metal crown group:Crown Restoration
Sponsors
the Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.18-55 years old, male or female; 2. The patient's dentition is complete; the occlusal relationship is normal, and there is no twist, tilt or elongation; 3. The root canal treatment of the abutment has been completed, and the edge of the crown restoration does not exceed 0.5mm below the gingival; 4. There is no obvious apical shadow on the X-ray of the abutment; 5. There is no loss of both ends of the abutment teeth and there is no restoration of normal healthy teeth (except for Class I holes); 6. The tooth with the same name as the abutment tooth is a healthy tooth without root canal treatment and no restoration (except for Class I holes); 7. The patient has completed the necessary oral hygiene education before restoration; 8. The gums and periodontal tissues are healthy, and there is no gingival bleeding symptoms; 9. The restoration has been made for 24 weeks; 10. The patient voluntarily signed the informed consent and cooperated with the review on time.
Exclusion criteria
Exclusion criteria: 1. Suffering from diseases that may affect the periodontal condition is not limited to hypertension, diabetes, etc.; 2. Long-term use of anticoagulants, antihypertensive, hypoglycemic drugs, mental illness drugs, etc.; 3. Pregnant women; 4. Those who received periodontal treatment within 3 months; 5. Metal materials have allergies.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Plaque; | — |
Countries
China
Contacts
Public ContactJiang Xinquan
the Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine
Outcome results
None listed