Dentition defect
Conditions
Interventions
Group A:Test group (navigator)
Group B:Control group (guide plate)
Sponsors
The Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. Male or female patients aged 18 to 70 years; 2. Maxillary edentulous or maxillary terminal dentition; 3. Maxillary hard tissue defects conform to Cawood & Howell classification IV-VI; 4. Normal mouth opening (>=40 mm); 5. Cheekbone width >=12mm; 6. Before implementing any research-related experimental procedures, the experimenter's resources should sign an informed consent form.
Exclusion criteria
Exclusion criteria: 1. Local inflammation of adjacent teeth, including uncontrolled periodontitis (periodontal probing depth> 4mm); 2. Untreated acute and chronic apical periodontitis of adjacent teeth; 3. Oral mucosal lesions (such as lichen planus); 4. There are space-occupying lesions in adjacent teeth (including cysts, tumors, etc.); 5. System diseases that affect bone healing, wound healing and dental implant treatment (such as uncontrolled and stable diabetes, fasting blood glucose is still >=8.8mmol after drug control)/L); 6. Uncontrolled and stable severe hypertension; 7. Contraindications of conventional implant surgery and oral surgery; 8. Heart disease (heart function disease of grade II and above); 9. Patients with liver and kidney dysfunction or abnormalities; 10. Obese patients, body mass index BMI> 28 kg/m2; 11. Received full-dose radiotherapy, a history of local radiotherapy on the head or neck; 12. Patients requiring long-term high-dose steroid therapy; 13. Currently or nearly 3 Patients who have been treated with drugs (such as bisphosphonates) that may affect or promote bone metabolism within months; 14. Continuous antibiotic therapy or chronic anti-inflammatory therapy (>=3 times a week) within the first 4 weeks of starting surgery; 15. Alcoholism or long-term drug abuse; 16. Patients with immune insufficiency; 17. Smoking/tobacco equivalent/chewing tobacco more than 10 pieces a day; 18. Physical or mental defects affecting oral hygiene care; 19. Pregnant or breastfeeding Female patients; 20. Patients who the researcher believes that they have poor compliance and cannot participate in the trial; 21. The patients participated in the clinical trials of other drugs or devices within the first 30 days of starting the operation (study day 0).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Implant placement accuracy; | — |
Secondary
| Measure | Time frame |
|---|---|
| operation time;Patient satisfaction with surgery;Postoperative complications;Postoperative complications; | — |
Countries
China
Contacts
Public ContactFeng Wang
The Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine
Outcome results
None listed