RecruitingNot ApplicableNCT07778199

Passive Fit of Implant-Supported Frameworks: Digital vs Conventional Impressions

Passive Fit Evaluation of Full-Arch Implant-supported Frameworks Using Digital and Conventional Impression Techniques: Crossover Study

Sponsor

Mansoura University

Enrollment

8 participants

Start Date

Jan 25, 2026

Study Type

INTERVENTIONAL

Conditions

Dental Implants Edentulous Jaw Passive Fit

Summary

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

Min Age: 35 YearsMax Age: 70 Years

Plain Language Summary

Simplified for easier understanding

This clinical trial is studying a procedure called Conventional Splinted Impression, a procedure called IO-Connect Digital Impression, and others for people with dental implants, edentulous jaw, and other related conditions. The study is currently recruiting participants at 1 location. People eligible for this study include aged 35 Years to 70 Years.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

PROCEDUREIO-Connect Digital Impression

Digital impression of the mandibular arch obtained using IO-Connect non-calibrated splinted scan bodies to fabricate the implant-supported framework for Group I.

PROCEDUREReverse Scan Body Digital Impression

Digital impression obtained using the Reverse Scan Body (RSB) technique, involving extraoral scanning of scan bodies and superimposition with intraoral tissue scans, to fabricate the implant-supported framework for Group II.

PROCEDUREConventional Splinted Impression

Conventional splinted open-tray impression using polyvinyl siloxane material and Type IV dental stone to fabricate the implant-supported framework for Group III.