Passive Fit of Implant-Supported Frameworks: Digital vs Conventional Impressions
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age35-70
SponsorMansoura University
About this trial
This randomized crossover clinical trial compares the passivity of fit of complete-arch mandibular implant-supported frameworks fabricated using three impression techniques: a non-calibrated splinted digital scan body system (IO-Connect), a Reverse Scan Body (RSB) digital impression technique, and a conventional splinted open-tray impression technique. Eight completely edentulous patients each receiving four mandibular implants will be included. Passivity of fit will be evaluated clinically using the Sheffield one-screw test and radiographically using intraoral periapical radiographs obtained with the parallel technique.
Eligibility criteria
Qualifiers
Completely edentulous patients requiring full-arch implant-supported fixed prosthesis
Age 35-70 years
Adequate mandibular bone to place at least four implants without major grafting
Ability to undergo digital scanning and radiographic evaluation
Disqualifiers
Systemic conditions affecting healing (uncontrolled diabetes, immunosuppression)
History of head/neck radiotherapy or bisphosphonate therapy
Active oral infection or severe bruxism
Strong gag reflex preventing accurate scanning
Trial design
Treatments tested in this trial
- IO-Connect Digital Impression
- Reverse Scan Body Digital Impression
- Conventional Splinted Impression
Treatment groups
8 Participants
are divided into 3 treatment groupsSponsors and collaborators
Source ClinicalTrials.gov