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3D-Printed Implant Overdentures: Comparing Impression Techniques
Sponsor: Mansoura University
Summary
This randomized crossover clinical trial aims to compare three different impression techniques for the construction of 3d-printed mandibular implant overdentures in completely edentulous patients. Sixteen patients will receive two mandibular implants and three overdentures fabricated using:(1) conventional open-tray implant level impression (2) functionally generated reline impression, and (3)mucostatic base with functional borders impression. Each overdenture will be worn for three months with a washout period between interventions. The primary outcome is masticatory efficiency, assessed using a color -mixing ability test at 3,6, and9 months. Secondary outcome is patient satisfaction, assessed using a Visual Analog Scale (VAS) at the same intervals. the study hypothesis is that the impression technique influences both chewing efficiency and patient satisfaction
Official title: Impact of Impression Techniques on Patient Satisfaction and Chewing Efficiency in 3D-Printed Implant Overdentures: A Crossover Study
Key Details
Gender
All
Age Range
45 Years - Any
Study Type
INTERVENTIONAL
Enrollment
16
Start Date
2026-01-06
Completion Date
2027-05-31
Last Updated
2026-01-29
Healthy Volunteers
Yes
Conditions
Interventions
Conventional open -tray impression
Primary impression with irreversible hydrocolloid, custom tray with open window, and final impression with silicone material around impression copings to fabricate a 3D-printed implant overdenture
Functionally generated reline impression
Interim prosthesis relieved and reline impression taken during centric closure with border molding, scanned to construct a 3D-printed implant overdenture
Mucostatic base with functional borders impression
Intraoral scan of edentulous arch, 3D-printed baseplates for occlusion rim, functional border molding, and digital workflow to fabricate 3D-printed implant overdenture
Locations (1)
Faculty of Dentistry, Mansoura University
Al Mansurah, Dakahlia Governorate, Egypt