Digital Technique to Analyze the Wear of Implants and Natural Tooth as Antagonist.

Study Overview
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Brief Summary
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The aim of this study was to describe a novel digital technique to analyze the wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth as antagonist. Materials and methods: Ten patients were consecutively included to rehabilitate partial edentulism by dental implants. Both the screw-retained implant-supported metal-ceramic dental prostheses and the natural tooth as antagonist were submitted to a digital impression through an intraoral scan to generate a Standard Tessellation Language digital file preoperatively (STL1), at 3 months (STL2), and 6 months (STL3) follow-up. Afterwards, an alignment procedure of the digital files (STL1-STL3) was performed on a reverse engineering morphometric software and volume changes at the screw-retained implant-supported metal-ceramic dental prostheses and the natural tooth as antagonist were analyzed using Student's t-test. Moreover, Gage R&R statistical analysis was conducted to analyze the repeatability and reproducibility of the digital technique.

Official Title
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Digital Technique to Analyze the Wear of Screw-Retained Implant-Supported Metal-Ceramic Dental Prostheses and Natural Tooth as Antagonist. A Pilot Study

Conditions
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Dental Prosthesis Failure

Intervention / Treatment
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* Procedure: The wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: in good health, who presented partial edentulism in the posterior upper maxilla, were consecutively included to rehabilitate partial edentulism by dental implants Exclusion Criteria: all those who do not meet the inclusion criteria

Ages Eligible for Study
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Minimum Age: 21 Years
Maximum Age: 35 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Patients thats were chosen in order to rehabilitate partial edentulism by dental implants.<br> | Procedure: The wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth<br>* A novel digital technique to analyze the wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth as antagonist<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Wear volume (µm3) of the screw-retained implant-supported metal-ceramic dental prostheses | Wear volume (µm3) of the screw-retained implant-supported metal-ceramic dental prostheses at 3 months follow-up appointment | 3 months follow-up appointment | 
| Wear volume (µm3) of the screw-retained implant-supported metal-ceramic dental prostheses | Wear volume (µm3) of the screw-retained implant-supported metal-ceramic dental prostheses at 6 months follow-up appointment | 6 months follow-up appointment | 
| Wear volume (µm3) of the natural tooth as antagonist | Wear volume (µm3) of the natural tooth as antagonist at 3 months follow-up appointment | 3 months follow-up appointment | 
| Wear volume (µm3) of the natural tooth as antagonist | Wear volume (µm3) of the natural tooth as antagonist at 6 months follow-up appointment | 6 months follow-up appointment | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Implant supported, morphometry, screw-retained, digital, wear