Initial Stability of Posterior Maxillary Implants With Bicortical Fixation

ClinicalTrials.gov ID: NCT01237184

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Official title

Comparison of Initial Implant Stability of Posterior Maxillary Implants With Bicortical Fixation to Implants Engaging Only the Alveolar Crest

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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.

Study identification

NCT ID: NCT01237184
Recruitment status: Completed
Study type: Observational
Phase: Not listed
Lead sponsor: University of Minnesota; Other
Enrollment: 45 participants

Conditions and interventions

Conditions

Tooth Loss

Interventions

Not listed

Eligibility (public fields only)

Age range: 18 Years and older
Sex: All
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Sep 2010 (Type not available)
Primary completion: Oct 2018 (Actual)
Completion: Oct 2018 (Actual)
Last update posted: Oct 11, 2018

2010 – 2018

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
University of Minnesota Dental school clinic	Minneapolis	Minnesota	55455	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT01237184, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Oct 11, 2018 · Synced Nov 12, 2026