The influence of selected light intensities on color perception within the color range of natural teeth

Barna, Gerald J.; Taylor, Joshua P.; King, Gordon E.; Pelleu, George B.

doi:10.1016/0022-3913(81)90456-x

Cited by 78 publications

(75 citation statements)

References 7 publications

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“…According to some studies, the evaluators' years of clinical experience did not positively affect the capacity of shade selection. 7,15,21,25,28 Nevertheless, other studies found that this factor was relevant in the frequency of right choices of ceramic shade, which is in agreement with the findings of this current study. [16][17][18][19]31 Experienced clinicians were statistically significantly better at recognizing pairs of equal shades correctly (76.92%) than were the novices (61.98%).…”

Section: Discussionsupporting

confidence: 83%

“…Because color blindness is a hereditary disorder linked to the X chromosome, men are 10 to 20 times more prone to having the deficiency than women, 1 which was also found in the current research, given that two men were excluded from the sample for reasons of daltonism (color blindness) as detected by the Ishihara test. The present data are in agreement with the data described by Barna and others 25 who, when examining several dentists with regard to color visualization defects, found that seven of the 50 participants had a chromatic anomaly. Moser and others 8 in evaluating a group of 670 dentists, verified that 10% had some type of deficiency related to shade perception.…”

Section: Discussionsupporting

confidence: 83%

“…All the tests were performed on the premises of the Sã o Leopoldo Mandic Postgraduation Center (Campinas, SP, Brazil) under the clinical lighting conditions that exist at the patient chair (fluorescent and natural light that comes through the window of the room) because it was the type of lighting most commonly found in dental offices and prosthesis laboratories. [23][24][25][26] To analyze the association between the variables, the v 2 and Fisher exact tests were applied, adopting 5% as the level of statistical significance. Furthermore, an analysis of risk was performed, comparing the risk of wrong choices between the genders, among students with different levels of clinical experience, and between shades by the construction of intervals of confidence at a 95% probability.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Gender, Experience, and Value on Color Perception

Milagres

Teixeira²,

Miranda³

et al. 2012

Operative Dentistry

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Clinical RelevanceAs a result of variations in accurate shade perception, considerations should be given to using multiple opinions to compensate for errors caused by gender or inexperience, especially when lighter shades are involved. SUMMARYStatement of the Problem: Precise shade matching can be one of the most difficult tasks for the dentist and some variables may influence the process of shade comparison.Purpose of the Study: This study tested the differences in shade perception between genders, the influence of the observer's clinical experience, and the value of ceramics in correct shade selection. Results: The results indicated that there were statistical differences among gender, clinical experience, and shades in discriminating ceramics.Conclusions: Men and observers with more clinical experience were more successful in discriminating shades, although darker shades were selected more correctly than the lighter ones.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionsupporting

confidence: 83%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Gender, Experience, and Value on Color Perception

Milagres

Teixeira²,

Miranda³

et al. 2012

Operative Dentistry

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“…This colour system has a meaningful correlation with the visual perception and clinical significance of colour differences [9,15,21]. Thus, CIELAB measurements evaluate the colour of each specimen at a given time and they also enable the calculation of the amount of colour change (∆E) between two time intervals by using a formula:…”

Section: Discussionmentioning

confidence: 99%

Effect of Cigarette Smoke on Acrylic Resin Teeth

Ak²

2013

JCDR

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Background: The discolouration of artificial teeth, which hampers aesthetics, is one of the negative effects of cigarette smoking. Therefore, the effect of cigarette smoke on the colour stability of commercially available acrylic resin teeth needs to be evaluated for clinical success and to ascertain as to which brand has superior properties. Materials and Methods:Three commercially available acrylic teeth were evaluated, after division into Group A (Premadent), Group B (Astra), and Group C (Sanyo-Dent). Selected brands were subdivided as study group and control group. Each set of acrylic resin teeth were stored in artificial saliva at 37±1 o C for 24 hours. After 24 hours of immersion, the colour measurement of each tooth (T0) was performed. Second colour measurements were done after 21 days (T21) of exposure to cigarette smoke for study group and after immersion in artificial saliva for control group. All data was statistically analyzed by using Repeated Measures ANOVA and Two-way ANOVA.(p<0.05)Results: Group A showed least total colour change on exposure to cigarette smoke, followed by Group B and Group C had the highest total colour change. In control group, after immersion in artificial saliva, a slight increase in total colour change was observed for all groups, which was clinically acceptable. Conclusion:Group A (crosslinked acrylic resin teeth) was more colour stable and more resistant to the discolouration which was caused by cigarette smoke, followed by Group B (crosslinked acrylic resin teeth). Group C (Non-crosslinked acrylic resin teeth) was least colour stable and most susceptible to discolouration which was caused by cigarette smoke.

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“…Based on Paravina, approximately 8% of men and 0.5% of woman were found to be color deficient [8]. Dental studies reported color deficiency from 7.8% to 14% [9]- [13].…”

mentioning

confidence: 99%

The Color of Natural Teeth Investigated by Visual Perception and Spectrophotometer

Pustina-Krasniqi¹,

Bytyci²,

Bicaj³

et al. 2015

OJST

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The advantage of electronic devices is to eliminate the subjectivity. Based on individual capabilities, visual perception has its disadvantages. The aim of this study was to find out the possible shade difference between the upper and lower teeth, visual perception versus spectrophotometry as well as proving that females are better in visual perception of colour matching. 82 subjects (dental students) of this study determined the color of each other's natural teeth. The color of 1640 teeth (incisors, canines and premolars), was matched by visual perception and by Vita Easyshade spectrophotometer. The matching was focused on the middle third of buccal surfaces of the examined teeth. In this study, it was found that there was a difference of color between the teeth of the upper and lower jaw. The percentage of the accordance between two methods was 28.35% for all examined teeth. The color determination at central incisors showed the highest value of accordance 40.85%. Based on Vitapan 3D Mastershade, the most frequent color was 2M2.

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The influence of selected light intensities on color perception within the color range of natural teeth

Cited by 78 publications

References 7 publications

Effect of Gender, Experience, and Value on Color Perception

Effect of Gender, Experience, and Value on Color Perception

Effect of Cigarette Smoke on Acrylic Resin Teeth

The Color of Natural Teeth Investigated by Visual Perception and Spectrophotometer

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