Initial Stability of Posterior Maxillary Implants With Bicortical Fixation
Completed
Conditions studied: Tooth Loss
In brief
The primary purpose of this study is to 1. determine whether dental implant engaging both the alveolar crest cortical bone and sinus floor using vertical stopper drill and self-threading concept (bi-cortical fixation) increases initial implant stability compared to the short implants engaging only alveolar crest cortical bone (uni-cortical fixation) and/or ones engaging both crest and sinus floor but with green stick fracture (indirect sinus lift technique), 2. study whether different surgical techniques, residual bone height, bone density, and length and width of the implants used affect initial implant stability in posterior maxilla. In addition, this study will continue to 3. compare secondary implant stability of implants fixed bi-cortically, uni-cortically and with indirect sinus lift technique at 2nd stage surgery/6 month healing and 1 year follow-up from the restoration and 4. measure amount of endo-sinus bone formation from the 1- year follow up CT (computer tomogram) scan and evaluate safety and potential post-operative complications of bi-cortical fixation and indirect sinus lift technique reported throughout the follow up periods.
Key facts
- Study ID
- NCT01237184
- Run by
- University of Minnesota
- People needed
- 45
- Starts
- 2010-09-01
- Expected to finish
- 2018-10-01
- Last updated by the study team
- 2018-10-11
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Eligible volunteers must be at least 18 years old, partially edentulous in maxillary posterior region with 7-11 mm residual bone height under the sinus floor and be indicated for CBCT scan for diagnosis and treatment planning, and of a medical risk of ASA I or II classification to participate.
You may not qualify if…
- Patients with bone pathology, sinus infection, and who are pregnant will be excluded. Implants requiring tapping, site of an implant replacement, and implant with dehiscence and/or fenestration will be excluded.
Where it is running
- University of Minnesota Dental school clinic — Minneapolis, Minnesota, United States
Full record on ClinicalTrials.gov
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