Dental Implants Clinical Trial in Beijing
Are you healthy and looking to help advance medical science?
You may be eligible to participate in a dental implants clinical study, and could be compensated for your time.
Are you healthy and looking to help advance medical science? You may be eligible to participate in a dental implants clinical study, and could be compensated for your time.
Details for the study
Treatments and/or Procedures
Inclusion Criteria: - patients who is more than 18 years old; - patients have lost a single tooth or several teeth in the posterior area of the maxilla, the tooth has/have been extracted for more than three months; - The residual bone height was between 3mm to 6mm; - The width of the alveolar ridge could contain the implant with standard diameter; - The general and local status of patient are suitable for implant placement and sinus floor elevation; - The patient who is willing to sign the informed consent and to follow the experimental follow-up rules. Exclusion Criteria: - Uncontrolled systemic diseases as diabetes, hypertension and so on; - Uncontrolled local diseases as periodontal disease or muco- cutaneous disease; - Heavy smoker (more than 10 cigarettes /day) - Patients who is suffering rhinitis, sinusitis; or rather large cyst is found in the maxillary sinus - The bone density of the maxillary posterior region is too poor to maintain the initial stability of the implant - The target of the implant site once received implant therapy or bone grafting - Patient with psychogenia or incapable to understand and obey the doctors' instruction.