Accuracy of Tooth Modified Scan Bodies as a Novel Technique

Study Overview
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Brief Summary
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The clinical performance of a novel scan body Tooth Modified Scan Body (TMSB) in the degree of trueness of IOS impression for full arch cases. I

Detailed Description
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The clinical performance of a novel scan body Tooth Modified Scan Body (TMSB) in the degree of trueness of IOS impression for full arch cases. TMSB is a scan body to which different teeth are attached directly as one piece, this may enhance the accuracy level by filling the gabs between ISB as well as acting as a stable artificial AI-easily recognized landmarks thus facilitating the scanning procedure. OS impression utilizing tooth modified scan bodies or conventional scan bodies result in the same degree of trueness as conventional verified splinted open tray impression. To our knowledge, it is the first time in the literature to utilize a novel scan body modified with directly connected teeth as artificial landmarks in vivo.

Official Title
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Accuracy of Tooth Modified Scan Bodies as a Novel Technique for Edentulous Full Arch Implant Supported Dental Prosthesis: A Controlled Clinical Trial

Conditions
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Digital Technology, Dental

Intervention / Treatment
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* Device: Tooth modified scan bodies
* Device: Conventional scan bodies


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participants who had received 4-6 implants in 1 edentulous arch. Participants with 1-piece implant-supported complete-arch fixed dental prostheses. Systemically free. Primary implant stability exceed 72 the day of the definitive impression. Exclusion Criteria: Smoker's. Non co-operative patients.

Ages Eligible for Study
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Minimum Age: 25 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Tooth Modified Scan Bodies<br>The intraoral scanner (IOS) impression will be recorded using modified scan bodies. The IOS device will be calibrated right before the impression. The scan strategy will be consistent for all the procedures following the manufacturer guidelines. | Device: Tooth modified scan bodies<br>* Tooth modified scan bodies are used during scanning for full arch implant cases.<br>|
| Placebo Comparator: Conventional Scan Bodies<br>The intraoral scanner (IOS) impression will be recorded using conventional implant scan bodies secured at the multiunit abutment level. | Device: Conventional scan bodies<br>* Conventional scan bodies will be used for scanning the full arch implant cases.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Degree of trueness | Digital files will be obtained: either conventional scan or TMSB scan. All the STL files will be imported to dental CAD software , and scan bodies will be converted to implant multi-unit ti-base replicas using a digital library. Then, updated STL files will be imported to inspection software for trueness assessments. | Immediately postoperative | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Jaw relation, Scan body