Edentulous patients
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Patients aged 18 to 65 years (including 18 and 65 years old) with male or female implants; 2) patients with severe periodontitis who need to be extracted; 3) patients with half mouth / full mouth missing dentition for more than 3 months, and the remaining bone mass can provide initial stability of the implant; 4) patients with severe alveolar ridge atrophy but sufficient zygomatic bone mass for zygomatic implant implantation; 5) subjects voluntarily signed informed consent before implementing any research related trial steps.
Exclusion criteria
Exclusion criteria: 1) Oral mucosal lesions (such as lichen planus); 2) oral space occupying lesions (including cysts, tumors, etc.); 3) systemic diseases affecting bone healing, wound healing and dental implant therapy (e.g., fasting blood glucose >= 8.8 mmol after drug control without control of stable diabetes mellitus); 4) uncontrolled severe hypertension; 5) contraindications for conventional implant surgery and oral surgery, including bone graft surgery; 6) heart disease (grade II and above heart function disease); 7) patients with liver and kidney dysfunction or abnormal; 8) obese patients with BMI > 28KG / M; 9) patients receiving full dose radiotherapy, local radiotherapy history of head or neck; 10) patients requiring long-term high-dose steroid therapy; 11) patients who are or have been treated with drugs (such as bisphosphonates) that may affect or promote bone metabolism in the past 3 months; 12) continuous use of antibiotics or chronic anti-inflammatory treatment (3 times a week) in the first 4 weeks before surgery; 13) alcoholism or long-term drug abuse; 14) patients with immune dysfunction; 15) smoking tobacco equivalent / chewing tobacco more than 10 cigarettes per day; 16) physical or mental defects affect oral health care; 17) patients who are allergic to products; 18) pregnant or lactating women; 19) patients who are considered by the researchers to be unable to participate in the trial due to poor compliance; 20) patients who participated in clinical trials of other drugs or devices within 30 days before the start of surgery (study day 0).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| entry deviation of implant;apical deviation of implant;angle deviation of implant;operation time;intraoperational complication;Target registration error;Implant survival rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Postoperative complications;Patient's pain perception; | — |
Countries
China
Contacts
Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiaotong University School of Medicine