Edentulisum
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Male or female patients aged 18 to 70 years (including 18 and 70 years); 2) Multiple teeth missing in the same quadrant requiring at least 2 implants 3) Missing teeth for more than 3 months; 3) The alveolar bone width (buccal and lingual distance), the bone height, and the mesio-distal distance of the edentulous area are sufficient, and the implant with diameter >= 4.1mm and height >= 8mm can be implanted without additional bone grafting; 4) The same dentition can stably support static guide template or dynamic navigation bracket; 5) The alveolar crest has sufficient keratinized gingiva (>= 2 mm from the midline of the crest to the combined membrane gingiva); 6) Normal opening (>= 40mm); 7) Prior to the implementation of any experimental steps related to the study, the participant resources shall sign the informed consent.
Exclusion criteria
Exclusion criteria: 1) General condition cannot tolerate conventional planting and oral surgery; 2) Adjacent teeth exist local inflammation, including uncontrolled periodontitis (cross periodontal probing depth > 4 mm) and untreated acute and chronic periapical periodontitis; 3) Daily smoking tobacco equivalent/chewing tobacco > 10; 4) Systemic diseases affect bone healing, wound healing and dental implant treatment (e.g.uncontrolled diabetes, fasting glucose >= 8.8 mmol/L after drug control); 5) Uncontrolled severe hypertension; 6) Have received drugs which may affect or promote bone metabolism within last three months (e.g. bisphosphonate). 7) History full dose radiation therapy or local radiotherapy of head and neck; 8) Bruxism; 9) Pregnant or lactating women; 10) Involved in clinical trials with other drugs 30 days before the start of the operation (day 0).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Implant accuracy; | — |
Secondary
| Measure | Time frame |
|---|---|
| Operation time;Patient's satisfaction;Postoperation complication;Implant survival; | — |
Countries
China
Contacts
The Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine