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3D-Printed Implant Overdentures: Comparing Impression Techniques

RecruitingNAAges 45 Years - anyAllMansoura University
NCT07208812 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

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

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📋 Eligibility rules (as published)
Inclusion Criteria: * Healthy patients, free from systemic diseases that affect bone resorption (e.g., uncontrolled diabetes, osteoporosis) * Residual alveolar ridges covered with healthy, firm mucosa * Adequate mandibular bone length and width to accommodate standard implant sizes. * Angle's Class I maxillo-mandibular relationship. Exclusion Criteria: * Absolute contraindications to implant placement (e.g., active cancer, immune system diseases) * History of head and neck irradiation or chemotherapy within the past 3 years * Metabolic bone diseases such as uncontrolled diabetes, osteoporosis, or hyperparathyroidism * Parafunctional habits such as bruxism or clenching * Smoking or alcoholism * Any physical or medical condition that may interfere with study follow-up or implant success
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What it tests

  • Conventional open -tray impression
  • Functionally generated reline impression
  • Mucostatic base with functional borders impression
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Where

1 site
Faculty of Dentistry, Mansoura University
Al Mansurah, Egypt
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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