NCT07093853 Mandibular Overdentures Retained by Four Locator Attachments Versus Four-Implant Bar Attachments
| NCT ID | NCT07093853 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Menoufia University |
| Condition | Bone Loss |
| Study Type | OBSERVATIONAL |
| Enrollment | 22 participants |
| Start Date | 2024-01-01 |
| Primary Completion | 2025-08-01 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.
This trial targets 22 participants in total. It began in 2024-01-01 with a primary completion date of 2025-08-01.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
This 10-year retrospective study investigates residual ridge changes in edentulous patients treated with mandibular overdentures (ODs) retained by either four Locator attachments or a four-implant bar system. Although two-implant ODs are well established, four-implant configurations may offer enhanced stability and function. Locator and bar attachments are commonly used, but their long-term effects on bone resorption patterns-especially posterior mandibular and anterior maxillary resorption-remain unclear. By standardizing implant positions, this study aims to directly compare the two systems to help guide clinicians in selecting the most effective attachment type for long-term success.
Eligibility Criteria
Inclusion Criteria: * Completely edentulous mandible and maxilla for at least 12 months. * Four interforaminal dental implants placed in the lateral incisor and first premolar regions. * Opposing maxillary complete denture constructed using a muco-compressive impression technique, with maximum denture base extension and lingualized occlusion. * Mandibular bone height between 15-25 mm at the symphysis region as measured on panoramic radiograph. * Minimum 10-year follow-up with adequate radiographic documentation. Exclusion Criteria: * Systemic diseases affecting bone metabolism. * Parafunctional habits (e.g., bruxism). * Smokers of more than 10 cigarettes/day or those with alcohol abuse. * Patients with implant failures, missing follow-up data, or implants placed outside the interforaminal region.
Contact & Investigator
Mohammed El-Sawy, PhD
PRINCIPAL INVESTIGATOR
Menoufia University
Frequently Asked Questions
Who can join the NCT07093853 clinical trial?
This trial is open to participants of all sexes, aged 40 Years or older, up to 70 Years, studying Bone Loss. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07093853 currently recruiting?
Yes, NCT07093853 is actively recruiting participants. Contact the research team at Dr_sawy@windowslive.com for enrollment information.
Where is the NCT07093853 trial being conducted?
This trial is being conducted at Al Mansurah, Egypt.
Who is sponsoring the NCT07093853 clinical trial?
NCT07093853 is sponsored by Menoufia University. The principal investigator is Mohammed El-Sawy, PhD at Menoufia University. The trial plans to enroll 22 participants.