Lack of teeth
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: The posterior region has been edentulous for more than 3 months and there is sufficient bone in the partially edentulous region (including implant placement with simultaneous bone grafting) Dental implants proximal and/or distal and at least 3 teeth on the opposite side of the same jaw, enough to support the bracket or guide plate Have good oral hygiene and overall health Comply with the protocol and follow-up associated with the study
Exclusion criteria
Exclusion criteria: Controlled periodontitis, severe bone defects at the implant site, restricted opening (10 cigarettes per day.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| accuracy of implant placement; | — |
Secondary
| Measure | Time frame |
|---|---|
| The influence of upper and lower jaw, left and right sides, and implant length on two implant systems; | — |
Countries
China
Contacts
Zhejiang Provincial People's Hospital