3D-Printed Implant Overdentures: Comparing Impression Techniques
ConditionEdentulism
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age45+
SponsorMansoura University
About this trial
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
Eligibility criteria
Qualifiers
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.
Disqualifiers
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
Trial design
Treatments tested in this trial
- Conventional open -tray impression
- Functionally generated reline impression
- Mucostatic base with functional borders impression
Treatment groups
16 Participants
are divided into 3 treatment groupsSponsors and collaborators
Source ClinicalTrials.gov