Advances in color matching

Brewer, Jane D.; Wee, Alvin G.; Seghi, Robert R.

doi:10.1016/j.cden.2004.01.004

Cited by 170 publications

(174 citation statements)

References 32 publications

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“…The SP and CE device showed statistical significant differences, while between the SP and SV device the differences were not significant. When compared with visual shade identification, previous studies have indicated that spectrophotometric devices provide better results 4,42) . There is apparently no difference in agreement when measuring tooth color under standardized conditions using a spectrophotometer or a colorimetric measuring device 4,30,43,44) .…”

Section: Discussionmentioning

confidence: 99%

Dental color matching: A comparison between visual and instrumental methods

Igiel

Weyhrauch

Wentaschek

et al. 2016

Dental Materials Journal

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The aim of this study was to compare the agreement rate (%) and color difference (ΔE*ab) of three dental color-measuring devices, with the visual shade identification. The tooth color were determined by two operators, which were advised to select a VITA classic shade tab in each other's agreement. The Shadepilot (SP), CrystalEye (CE) and ShadeVision (SV) were used to measure tooth color. Statistically analyses include agreement rate (%), color difference (ΔE*ab), McNemar test (p=0.05), Student's t-test (p=0.05) and Bland Altman scatterplots. The SP had an agreement of 56.3% with the visual shade determination, the CE 49.0% and SV 51.3%. ΔE*ab of the visually and instrumentally selected shade tabs and natural teeth were frequently above the threshold for acceptability. Comparing both methods, for SP ΔE*ab values differ in a range of clinical acceptability.

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Section: Discussionmentioning

confidence: 99%

Dental color matching: A comparison between visual and instrumental methods

Igiel

Weyhrauch

Wentaschek

et al. 2016

Dental Materials Journal

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“…This visual method could be affected by lightning conditions, to the dentist's or technician's experience, age, eye fatique, etc. (13). In a recent study, it has been shown that the lightning conditions could change the color matching.…”

Section: Discussionmentioning

confidence: 99%

“…It has been described that the most important value for visual shade matching is CIE L* values (13,16). The CIE L* values were clustered by ward method, the clustered groups then reclustered by ward method using CIE a* values descending (2).…”

Section: Discussionmentioning

confidence: 99%

Color Distribution of The Gingiva Created by Color Schema Maker Software

Ak¹,

Kaki²

2016

Eastern J Med

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“…These shade guides are widely available and easy to use, formed essentially of a layer of ivory porcelain and a layer of enamel porcelain. Thus, it is difficult to select natural teeth color using [5,6]. For accurate shade evaluation, discolored teeth and natural teeth need to be analyzed using precise equipment [5,6].…”

Section: Methodsmentioning

confidence: 99%

“…Thus, it is difficult to select natural teeth color using [5,6]. For accurate shade evaluation, discolored teeth and natural teeth need to be analyzed using precise equipment [5,6]. However, in the present study we used a shade guide because of the large subject sample and the simplicity of the tooth color evaluation.We also considered that we should clarify whether tooth discoloration is related to the prevalence of periodontopathic bacteria by roughly dividing subjects into white and discolored tooth groups based primarily on tooth brightness.…”

Section: Methodsmentioning

confidence: 99%

An Analysis of the Periodontopathic Bacteria Involved in Extrinsic Discoloration of Teeth

Imai¹

2016

J. Dent. Sci. Ther

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Recent dental esthetics are paying attention to whitening. Many people take an interest in tooth color, and wish to remove extrinsic discoloration. While a relationship between tooth discoloration and periodontopathic bacterial prevalence has been suggested, such a relationship has not been clearly elucidated. The aim of the present study was to clarify the relationship between the periodontopathic bacteria present in plaque and tooth discoloration. Plaque samples were taken from 54 subjects whose tooth color was evaluated using a shade guide. The subjects were then divided into a white group (30 women) and a discolored group (24 women). Using bacterial DNA prepared from the plaque samples as a template, polymerase chain reaction was performed with specific primers to identify the presence of five periodontopathic bacteria (Aggregatibactor actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythensis, Treponema denticola and Prevotella intermedia). The numbers of the bacterial species were counted and the percentage of the subjects that were carriers of each bacterium was calculated. In addition, the mean number (± SE) of periodontopathic bacterial species per person was calculated as 1.23 (± 0.15) and 2.04 (± 021) in the white and discolored groups, respectively, and there was a significant difference between these two groups (p< 0.01). We thus found a positive relationship between superficial tooth color and the number of periodontopathic bacterial species.

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Advances in color matching

Cited by 170 publications

References 32 publications

Dental color matching: A comparison between visual and instrumental methods

Dental color matching: A comparison between visual and instrumental methods

Color Distribution of The Gingiva Created by Color Schema Maker Software

An Analysis of the Periodontopathic Bacteria Involved in Extrinsic Discoloration of Teeth

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