Patients undergoing the second phase of dental implant surgery:The soft tissue thickness at the alveolar crest of the implant site is less than 2 mm
Conditions
Interventions
experimental group:During the second surgery, a xenogeneic soft tissue substitute (Fibro-Gide) was applied simultaneously to cover the alveolar ridge and connect the healing abutment.
control group:During the second operation, a connective tissue graft was performed simultaneously to connect and heal the abutment.
Sponsors
Hospital of Stomatology, Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1. Understand the implant restoration process and have signed the preoperative informed consent form, and can follow the requirements for follow-up; 2. Age 18 to 60 years old, gender not limited; 3. One single premolar or molar on both sides of the mandible needs to be extracted due to residual crown, crack, longitudinal crack, bottom perforation, internal or external resorption, etc., excluding free-end absence; 4. The soft tissue thickness at the alveolar crest of the implant site is less than 2 mm; 5. Use bone-level implants; 6. Good oral hygiene, and can maintain oral hygiene independently.
Exclusion criteria
Exclusion criteria: 1. Patients with systemic diseases that may affect the postoperative healing period and/or bone integration, such as uncontrolled diabetes, hypertension, etc.; 2. Systemic or local bone diseases, such as bone tuberculosis, osteomyelitis, bone tumors, etc.; 3. Oral mucosal diseases; 4. Patients who have been taking special medications that may affect postoperative healing or bone integration for a long time; 5. Patients with contraindications for oral surgery; 6. Patients who have received radiotherapy or chemotherapy within the past 3 years; 7.Patients with uncontrolled periodontitis; 8. Patients with alcohol dependence, drug abuse, or other drug addiction; 9. Patients who smoke; 10. Patients who grind their teeth at night, clench their teeth, or have moderate or severe tooth wear; 11. Patients with periodontal inflammation or periapical inflammation adjacent to the teeth; 12. Patients using soft tissue-level implants; 13. Patients with insufficient hard tissue at the implant site and requiring bone augmentation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| supracrestal tissue height, STH; | — |
Secondary
| Measure | Time frame |
|---|---|
| Marginal Bone Loss, MBL; | — |
Countries
China
Contacts
Public ContactShiyu Wu
Hospital of Stomatology, Sun Yat-sen University
Outcome results
None listed