Edentulism
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Sign the informed consent; 2) Patient aged >=18 years; 3) There are discontinuous missing teeth in the ipadal maxillary bicuspid and posterior tooth area for at least 3 months, and the remaining teeth can establish stable occlusion; 4) The vertical height and horizontal width of the residual bone amount at the tooth loss site are 4-6 mm and above.
Exclusion criteria
Exclusion criteria: 1) Heavy smoker (> 10 per day); 2) Uncontrollable periodontal disease; 3) Uncontrolled metabolic diseases (diabetes, thyroid disease, kidney and liver disease); 4) Long-term use of hormone drugs; 5) History of facial radiotherapy; 6) Use drugs that affect bone metabolism, such as phosphates; 7) Allergy to implants; 8) Women who are pregnant, breast-feeding or planning to become pregnant within one year; 9) There were no cysts, infections or important anatomical structures of blood vessels in the maxillary sinus area.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| survival rate;success rate;marginal bone level;patient-reported outcome;probing pocket depth; | — |
Countries
China