Publications by authors named "Vincent Hampe-Kautz"
Objective: The objective was to assess the repeatability of three spectrophotometers, based on the CIELCh factors and shadeguide reference measurements.
Materials And Methods: Color analysis was performed using three devices: Rayplicker, Easyshade 4, and Easyshade V. Five repeated measures were performed by the same operator, on the right central maxillary incisor of 30 patients.
Digital evaluation of dental bleaching using a new methodology: an in vivo study.
Int J Esthet Dent
November 2022
Article Synopsis
- The study aimed to evaluate the effectiveness of 10% carbamide peroxide bleaching protocols at home using dental photography over a 4-week period.
- Fifty-two patients participated, with tooth color measured weekly and analyzed using specific color metrics (ΔE00, L*, a*, b*) to assess changes.
- Results showed significant color improvement after the first week, effective results after 4 weeks, but some color relapse was noted after 4 months, highlighting the reliability of this new photographic analysis method for evaluating whitening treatments.
Article Synopsis
- The study aimed to evaluate six color matching methods for dental shade matching, comparing visual methods by novice and expert practitioners, two intraoral scanners, and the Rayplicker spectrometer against the Easyshade V spectrophotometer.
- Color matching was tested on the central incisors of 40 subjects, using CIE L*a*b* values to assess differences in color perception and luminosity across the methods.
- Results indicated that the Rayplicker closely matched the Easyshade V, with expert practitioners performing better than novices, while intraoral scanners were less reliable with fewer color options and higher luminosity readings.