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

Launched by YASMINE ELSHERBEENY · Aug 5, 2025

Keywords

ClinConnect Summary

This study is exploring how well ear scans match the real ear when using different background colors and skin tones. Researchers will scan each participant’s ear three times (with a black background, with a white background, and with the skin tone itself as the background) and also make a traditional physical impression of the ear to create a cast that is scanned. They will compare these scans with software to see which background and skin tone combination gives the most accurate results, with the aim of making ear prostheses more reliable and requiring fewer visits.

About who can participate: the study plans to enroll about 135 healthy volunteers with intact ears, representing three skin-tone groups (light, medium, and darker). Participants should not have sunburn or tan at the time of the scan and must be able to stay still during the procedures. The trial is in Cairo, Egypt at Ain Shams University and is currently enrolling by invitation. Each participant attends one visit lasting about an hour, and the study does not involve a drug or device trial; it focuses on improving digital ear scanning for prosthetic use.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. Three types of skin tones will be selected; type I, type III and type VI according to The Fitzpatrick Scale.
• • 2. Participants with intact ears.
• • 3. Participants not exposed to sun burns or tans.
• Exclusion Criteria:
• • 1- Uncooperative participants.
• • 2-Participants without intact ears.