Mandibular Implant Overdenture With Bar vs OT Equator: A Randomized Controlled Trial

This clinical study will evaluate two types of attachment systems used to support lower dentures in patients who have lost all their lower teeth. All participants will receive dental implants in the lower jaw, and a complete denture that attaches to these implants for better stability and comfort. The study compares two options: A traditional bar attachment A bar with additional OT Equator attachments, which are designed to improve denture retention and reduce wear Each participant will receive three implants in the lower jaw, and either a bar attachment alone or a bar with OT Equator attachments will be placed. The goal is to find out which method provides better retention of the denture, causes less bone loss around the implants, has less wear on the attachment parts, and leads to higher patient satisfaction. Participants will be followed over several months. Their denture retention will be tested using a digital force meter, bone levels will be measured through radiographs, cap wear will be examined using an electron microscope, and satisfaction will be recorded using a questionnaire. This study is being conducted at Cairo University and is self-funded by the primary investigator. Participation is voluntary and does not involve any financial cost to participants.

NCT Number	NCT07121881
Lead Sponsor	Hala Abdel salam Selim
Conditions	Edentulous Mandible, Implant-Supported Overdentures
Enrollment	22 participants
Start Date	2025-09
Primary Completion	2026-03 (estimated)
Study Completion	2026-03 (estimated)
Updated on ClinicalTrials.gov	2025-08-14