Women have traditionally been believed to be more capable of matching colors than men. Because of this factor women should tend to agree with one another more often than men regarding tooth shade selection. This study tested differences in dental color perception between men and women. Six women and six men, all dental students, were selected and given the Farnsworth-Munsell 100 Hue test and the Farnsworth D15 test to rule out any inherent color deficiences. The students then used three different shade guides and three different light sources to match each others' teeth. Students selected shades for the gingival third and incisal third sites of selected maxillary anterior teeth. The students rotated use of the different shade guides and light sources. Descriptive statistics and ANOVA were performed on the data. Generally, there were no statistically significant findings with the use of three light sources and two shade guides for men at the p less than 0.05 level. For women, the light source made a difference. The men, as a group, showed borderline more (63% to 58%) uniform shade selection than the women.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/0022-3913(91)90209-f | DOI Listing |
J Clin Exp Dent
December 2024
D.D.S., M.S., Ph.D. Clinical Associate Professor. Department of Restorative Dental Sciences, University of Florida, College of Dentistry, 1395 Center Drive, College of Dentistry, Gainesville, FL, United States.
Background: The aim of this study was to evaluate the 50%:50% perceptibility thresholds (PT) and acceptability thresholds (AT) for color differences in ceramic shade tabs observed by dentists and patients using CIEDE2000 color difference formula.
Material And Methods: Twenty-two combinations of ceramic shade tabs from the VITA 3D Master shade guide were assembled to be used for the visual comparison analyses. The color difference between each shade tab pair was numerically determined by spectrophotometry using the VITA EasyShade V, and calculated using the CIEDE2000 formula (ΔE00).
J Esthet Restor Dent
January 2025
All Sum Research Center Ltd., Mississauga, Ontario, Canada.
Objective: This study aims to evaluate extrinsic tooth stain removal and whitening efficacy of two experimental dentifrices containing (i) 5% sodium tripolyphosphate (STP)/1% micronized alumina or (ii) 5% STP/1% micronized alumina with abrasive silica (ED2) compared to a regular fluoride dentifrice (RFD) following 8 weeks of use.
Materials And Methods: This was a single-center, randomized, controlled, blind, three-arm, stratified, parallel-group study. Eligible participants underwent clinical assessment of stain on the facial/lingual surfaces of maxillary and mandibular teeth using the modified Lobene stain index (MLSI), and shade of the facial surfaces of the central and lateral maxillary incisors using the VITA Bleachedguide 3D-Master (VITA) shade guide.
J Clin Med
January 2025
Department of Oral Surgery, Universidad de Salamanca, 37007 Salamanca, Spain.
Tooth shade selection is a fundamental factor in the success of dental restorations, and visual impairment may adversely affect this process. The aim of this cross-sectional clinical study was to determine whether visual impairment influences shade selection using two methods: spectrophotometry and shade guides. : The sample consisted of 2796 maxillary and mandibular teeth, and shade selection was measured subjectively with a shade guide (VITA Classic, VITA Zahnfabrik) and objectively with a spectrophotometer (VITA Easyshade V, VITA Zahnfabrik, Bad Säckingen, Germany).
View Article and Find Full Text PDFAppl Ergon
January 2025
Idaho National Laboratory, 1955 Fremont Avenue, Idaho Falls, ID, 83415, United States.
Human system interface design in industrial process control is guided by industry standards, human factors best practices, and domain-specific conventions, and often there is a conflict between one or more of the sources of design input for specific design elements. In the nuclear domain, one design element for which conflict arises is the use of color to represent equipment state. This study evaluates the tradeoffs associated with using color in a process control display versus using white and shades of gray.
View Article and Find Full Text PDFBackground: This single-blind, noninferiority trial evaluated whether 10% carbamide peroxide (CP) applied for 2 or 4 hours daily is noninferior to 8 hours.
Methods: A total of 120 healthy adults, with teeth shade A2 or darker, were randomly allocated to 3 groups (n = 40). All participants used 10% CP gel in a bleaching tray for 2, 4, and 8 hours daily for 14 days, with the option to extend treatment if they were dissatisfied.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!