Toothguide Trainer tests with color vision deficiency simulation monitor

Evaluating the ability of dental technician students and graduate dentists to match tooth color

“…Previous investigations have indicated that the TTB is an effective method for teaching and learning dental color differentiation, and training with the TTB is known to improve students' abilities to accurately match shades. 20 The percentage of correct answers obtained with the VMG before and after the training showed a positive correlation, as high TTB scores were associated with a greater number of correct answers. 21 The 14 who simulated an intraoral scenario in contrast to other studies performed in nonclinical in vitro conditions.…”

“…19,20 The TTB presents a real shade tab under daylight lamp conditions (Dialite Color System) with diffuse light from 2 angled 5 W lamps of 5500 K and 1000 lux at a distance of approximately 25 cm. TTB training is structured in 3 different successive exercises and a final test in shade matching.…”

“…This procedure ensures that all participants achieve a standardized level of knowledge and equal minimum ability in color discrimination. 20,21 The TTB is considered to be an effective teaching method and is also useful in the evaluation of shade-selection ability.…”

Colour discrimination of dental professionals and colour deficient laypersons

“…The percentage of dentists and laboratory technicians with superior discrimination according the Farnsworth-Munsell 100 Hue Test classification (56%) was much higher than in overall population (16%), indicating that color discrimination ability might influence individual's selection of dental profession. Smaller percentage of individuals that exhibited superior color discrimination competency according to 3DS (31%) indicate that (a) there is room for improvement in shade matching and shade guide test through education and training [47][48][49][50][51][52] ; (b) that huge number of tabs (26) influenced results; or (c) that these two factors were combined. Some future research might bring insight to these questions.…”

A comparison between a new visual method of colour matching by intraoral camera and conventional visual and spectrometric methods

“…3,4,6,8 Subject to and influenced by multiple factors, including experience and color education, human color perception also depends on ageing, gender, ocular fatigue, clinician color deficiency, integrity and functioning of ocular and cerebral levels. 4,6,[9][10][11] In addition to the fact that critical color perception varies from one individual to another, 6,8,12 human eye variables and the frequent inadequacy of available shade guides cause a certain inability to reliably duplicate shade selection from one day to another. 4,6 In 1973, Sproull stated that shade guides are limited by a critical problem; namely, the failure to represent the color space of natural dentition.…”