NCT07108946

the Effect of Different Background Color and Skin Tone on the Accuracy of Auricular Scanning

Influence of Skin Tone and Background Color on the Accuracy of Auricular Scanning: A Clinical Trial

• Status: Enrolling By Invitation
• Phase: N/A
• Study type: Interventional
• Enrollment: 135 (estimated)
• Sponsor: yasmine Elsherbeeny · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Accepted

Summary

The goal of this study is to find the best miss and match background color around an ear when taking scans for it , the investigators will recruit participants of three different skin tone and will scan their ear three times; one scan without any background, second scan with black one and the third scan with white background, then the investigators will take an actual physical impression of the participants ear and the investigators will obtain a cast which will be scanned also and its scan will be compared to the three scans taken with different backgrounds to find the best combination.

Detailed description

Manufacturing the Extraoral prosthesis is troublesome for the patient, the dental practitioner and the dental technician. When a person misses his ear congenitally or due to trauma, he wishes to have an accurate replacement for his ear with minimum steps and effort. Digital technology has been providing the dental field with the most helpful equipment in such cases. Owing to the innovation of intraoral scanners with its continuous refinement, this patient now can rest assured that he will have his auricular prosthesis with less number of visits and less effort. There are different environmental factors that can affect scanning accuracy such as patients skin tone and scanning background.This study aims to evaluate the different backgrounds and skin tones effect on the trueness of auricular scanning. Participants with different skin tones (black, white and intermediate) will be selected with intact ears, then conventional impression will be taken and stone cast will be obtained and scanned via an extraoral scanner, then intraoral scanner will be used to scan the auricle three times, first with a black background, second with white background, third without background. Trueness of the scans will be evaluated by metrological software. Data will be collected, tabulated, and statistically analyzed.

Conditions

• Healthy Participants

Interventions

Type	Name	Description
OTHER	Black background	Changing the background color during scanning to evaluate its effect on scan quality .
OTHER	White background	Changing the background color during scanning to evaluate its effect on scan quality .
OTHER	Participant own skin as a background	Changing the background color during scanning to evaluate its effect on scan quality .

Timeline

• Start date: 2025-07-26
• Primary completion: 2025-09-30
• Completion: 2025-12-30
• First posted: 2025-08-07
• Last updated: 2025-08-07

Locations

1 site across 1 country: Egypt