A Digital Method for Measurement of Palatal Asymmetry in Twins

Study Overview
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Brief Summary
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The aim of the study is to evaluate the digital palatal model as a possible tool of human identification.

Detailed Description
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In this research, the investigators investigate the individual characteristics of the human upper and lower dentition and palate. The investigators use digital dentistry, record the data using an intraoral scanner, and store the extracted open source file format on a secure cloud-based server. Data validation is repeated annually. By comparing the initial and control digital samples, the investigators draw conclusions about the usability of the extracted information. The aim of the study is to develop a method and data storage protocol that will allow the patient data to be used years or decades later to replace or restore lost information.

Official Title
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A Digital Method for Measurement of Palatal Asymmetry in Twins

Conditions
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Identity, Body, Palate; Deformity

Intervention / Treatment
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* Device: Intraoral scanning and data acquisition


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Monozygotic twins Same-sex Dizygotic twins Opposite-sex Dizygotic twins Triplets Exclusion Criteria: Marfan-syndrome Non-twins

Ages Eligible for Study
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Minimum Age: 17 Years
Maximum Age: 99 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: Screening
Intervention Model: Single Group Assignment
Interventional Model Description: Intraoral scanner (Planmeca Emerald) data acquisition, 3 scans are taken for each participant. Data will be exported from dedicated software (Planmeca, Romexis) and imported into GOM surface analysis software. Sample comparisons and sample preparation are performed here. The results are collected in excel spreadsheets and analyzed in SPSS statistical software.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intraoral scanning and data acquisition<br> | Device: Intraoral scanning and data acquisition<br>* Intraoral scanner data acquisition, 3 scans are taken for each participant. Data will be exported from dedicated software (Planmeca, Romexis) and imported into GOM surface analysis software. Sample comparisons and sample preparation are performed here. The results are collected in excel spreadsheets and analyzed in SPSS statistical software.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Deviation value between 3 human palatal scans | The deviation value will be measured in mm between three human palatal scans of the same individual by GOM Inspection software. | 30 second between data acquisition | 
| Deviation value among scans | The deviation value will be measured in mm between 9 comparisons of twin siblings by GOM Inspection software. | 30 second between data acquisition | 
| Deviation value between 2 scans | The deviation value will be measured in mm between 2 human palatal scans of the same individual by GOM Inspection software. | 30 second between data acquisition | 
| Deviation value between original scans and mirrored scans of the individual | The deviation value will be measured in mm between the original human palatal scans and mirrored human palatal scans of the same individual by GOM Inspection software. | 30 second between data acquisition | 
| Deviation value between original human palatal scans and mirrored human palatal scans of the twins | The deviation value will be measured in mm between the original human palatal scans and mirrored human palatal scans of twin siblings by GOM Inspection software. | 30 second between data acquisition | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Human identification, Palate morphology, Intraoral scanner, Digital dentistry