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Diagnostic Accuracy of Innovative Photo-Analysis Software in Resin Composite Shade Matching
Sponsor: Misr University for Science and Technology
Summary
This study aims to assess the agreement between new computer software using dental photographs, digital spectrophotometer and the visual technique, in achieving accurate resin composite shade matching.
Official title: In Vivo Diagnostic Accuracy of Innovative Photo-Analysis Software and Digital Spectrophotometer Compared With Visual Technique in Resin Composite Shade Matching
Key Details
Gender
All
Age Range
18 Years - 45 Years
Study Type
INTERVENTIONAL
Enrollment
52
Start Date
2026-05-01
Completion Date
2026-10-01
Last Updated
2026-07-16
Healthy Volunteers
No
Conditions
Interventions
Computer-Assisted Software
A standardized Computer-assisted photographic shade-matching workflow will be employed using a novel photo-analysis software that first receives the photos and balances each photo to suppress unrealistic colors using a standard gray reference card (WhiBal; Michael Tapes Design), with nominal colorimetric targets of L\* =75, a\* = 0, b\* = 0, will be included in every photograph within the plane of the teeth. The Photo is firstly captured with a Nikon D3400 DSLR crop-frame camera (Nikon Corp) mounted on a stable tripod to avoid movements during capturing the photo and set the proper angulation and parallelism. All camera parameters will be standardized. The program establishes a pixel-to-metric conversion scale (cm) from known distances and overlays orthogonal reference axes to fix landmark orientation and reproducible measurement geometry. Using these guides, tooth height and width are annotated, and the region of interest is consistently defined at the central area of the middle third.
Locations (1)
Misr university for science and technology
Sixth of October, Giza Governorate, Egypt