Effect of Geometric Modifications of Implant Scan Bodies
NCT ID: NCT06040385
Last Updated: 2025-08-14
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
18 participants
INTERVENTIONAL
2023-03-20
2025-02-16
Brief Summary
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Detailed Description
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Evaluation method:
The trueness of the final impression and the passivity of the final prosthesis will be evaluated by two methods:
Invitro evaluation For each patient in every group, the standard tessellation language (STL) files of scanned impressions will be superimposed on the reference file to determine the 3D surface, linear, and angular position analysis.
The STL files for both frameworks will be superimposed on the reference file to determine the passivity.
In vivo (Clinical) evaluation Radiographic evaluation using long cone parallel technique will be done for the framework after 6 month (T6) after one year (T12), and after 18 month (T18) from insertion.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
For each patient, two final impressions will be made a) Final impression will be done by conventional one-step impression technique.For the same patient, another final impression using unmodified scan bodies will be done by direct intraoral scan technique.
For group (II):
For each patient, two final impressions will be made
a) Final impression will be done by conventional one-step impression technique.For the same patient another final impression using subtractive modified scan bodies will be done by direct intraoral scan technique.
Conventional impression for both groups will be poured into stone cast with multiunit abutments analogues, then scanned to be as a reference file for each patient.
TREATMENT
SINGLE
Study Groups
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• Group I (control group)
Final impression will be done by conventional one-step impression technique. For the same patient, another final impression using unmodified scan bodies will be done by direct intraoral scan technique.
Implant supported hybrid prosthesis
For each patient, implant supported mandibular hybrid prosthesis will be fabricated digitally. Frameworks will be tried in patient's mouth, scanned intraorally by intraoral scanner (IOS).
• Group II (Test Group)
Final impression will be done by conventional one-step impression technique. For the same patient another final impression using subtractive modified scan bodies will be done by direct intraoral scan technique
Implant supported hybrid prosthesis
For each patient, implant supported mandibular hybrid prosthesis will be fabricated digitally. Frameworks will be tried in patient's mouth, scanned intraorally by intraoral scanner (IOS).
Interventions
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Implant supported hybrid prosthesis
For each patient, implant supported mandibular hybrid prosthesis will be fabricated digitally. Frameworks will be tried in patient's mouth, scanned intraorally by intraoral scanner (IOS).
Eligibility Criteria
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Inclusion Criteria
2\. All selected patients have a healthy mucosa and with no clinical complications.
3\. All patients are cooperative and approve the proposed treatment protocol.
Exclusion Criteria
45 Years
70 Years
ALL
Yes
Sponsors
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Mansoura University
OTHER
Responsible Party
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Locations
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Mansoura University ,Faculty of dentistry
Al Mansurah, , Egypt
Countries
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Other Identifiers
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M0203023RP
Identifier Type: -
Identifier Source: org_study_id
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