Alveolar ridge preservation and whether it lowers the need for sinus floor elevation after upper back tooth extraction
Official title: Impact of Alveolar Ridge Preservation on the Potential Need for Sinus Floor Elevation in Posterior Maxillary Implant Sites: A 10-year Retrospective Radiographical Study
Run by Saint-Joseph University · NCT07526129 · Data updated 2026-11-12
This project tries to see if filling the socket after removing upper back teeth reduces the chance you'll need a sinus lift before getting a dental implant.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 130 (estimated) |
| Sponsor | Saint-Joseph University Academic / other |
| Locations | 1 site (Beirut, Beirut) |
| Status | Recruiting |
| Started | January 1, 2025 |
| Main results expected | May 1, 2026 |
| Study ends | May 30, 2026 |
| Registry record updated | April 13, 2026 |
| Trial ID | NCT07526129 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18) who had extraction of maxillary posterior teeth with either ARP using bony biomaterials or unassisted socket healing and who have CBCT imaging at least four months after extraction are the ideal candidates for inclusion.
✕Probably not a fit
Patients with symptomatic periapical radiolucency, acute abscesses, chronic sinus tracts, missing or inadequate post-extraction CBCT imaging, or non-maxillary-posterior sites would not be represented and may not benefit from the findings.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This 10-year retrospective radiographic review at Saint Joseph University examines maxillary posterior extraction sites to determine whether alveolar ridge preservation (ARP) changes later need for sinus floor elevation. Periapical radiographs will first classify teeth into four groups by how the root apices relate to the maxillary sinus, and patients are split into ARP (extraction + bony biomaterial) versus unassisted healing groups. CBCT scans taken at least four months after extraction or ARP will be measured for residual bone height and assigned to ABC categories indicating need for lateral, crestal, or no sinus augmentation. The study compares the proportions of sites needing each type of augmentation between groups to see if ARP reduces subsequent sinus lift procedures.
Why it matters
Potential benefit: If successful, ARP could reduce how often patients need sinus augmentation before implant placement, lowering additional surgery, time, and cost.
How similar studies have gone: Previous studies have shown ARP reduces post-extraction bone loss, but evidence on whether it reliably prevents the need for sinus lift procedures remains limited and mixed.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * • Patients aged ≥18 years. * Patients who underwent alveolar ridge preservation after extraction of maxillary posterior teeth, as a test group. * Patients who underwent extraction of maxillary posterior teeth with unassisted socket healing without alveolar ridge preservation as a control group. Exclusion Criteria: * • The presence of a clinically symptomatic periapical radiolucency, acute abscesses, or chronic sinus tract, that may falsify the classification of posterior maxillary teeth on 2D radiographs.
Where it's running
-
Saint Joseph University of Beirut
Beirut, Beirut, Lebanon Recruiting
Study contacts
- Study coordinator: Nadine Chamas, Doctor of Dental Surgery
- Email: nadinechamas@outlook.com
- Phone: +96176773326
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.