Assessment of perceptibility and acceptability of color difference of denture teeth

Alghazali, Nabiel; Burnside, Girvan; Moallem, Mohammed; Smith, Pem; Preston, Antony; Jarad, Fadi

doi:10.1016/j.jdent.2012.04.023

Cited by 104 publications

(110 citation statements)

References 21 publications

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…Where numbers "1" and "2" refer to the color coordinates before and after the artificially accelerated aging respectively; (L*) = lightness (0-100), (a*) = (change the color of the axis red/green) and (b*) = (color variation axis yellow/blue) [27,28] . …”

Section: Methodsmentioning

confidence: 99%

Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Hamza¹,

Al-Baili²,

Abdel‐Aziz³

2018

SDS

View full text Add to dashboard Cite

Aim: The purpose of the study was to evaluate the effect of artificially accelerated aging on marginal fit and color stability of three CAD/CAM materials used to fabricate laminate veneers. Methods:A typodont maxillary central incisor tooth was prepared to receive a ceramic veneer, then duplicated to create 15 epoxy resin teeth equally divided into three groups according to the ceramic used to fabricate laminate veneers. Three groups were established: Group (N) nano-hybrid ceramic (Lava™ Ultimate; 3M ESPE); Group (L) CAD/CAM lithium disilicate glass ceramic block (IPS e.max ® CAD; Ivoclar Vivadent); and Group (F) leucite-reinforced glass ceramic block (IPS Empress ® CAD; Ivoclar Vivadent). All of the specimens were subjected to artificial aging using a weathering process in a Weather-O-meter for 300 h. Margin fit and color measurements were carried out before and after artificial aging of the laminates. Results:The results for the marginal fit revealed that there was no statistically significant difference between the mean marginal gap distance of the aged and non-aged specimens in the nano-hybrid ceramic. However, lithium disilicate glass ceramic and leucite-reinforced glass ceramic blocks showed a statistically significant change in the marginal gap. For color measurement, Lava™ Ultimate demonstrated a significant decrease in (a*) value while the (L*) and (b*) values did not show a statistically significant change. Conclusion:Within the limitation of this study, it can be concluded that aging the nano-hybrid ceramic had a superior marginal fit and inferior color stability.

show abstract

Section: Methodsmentioning

confidence: 99%

Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Hamza¹,

Al-Baili²,

Abdel‐Aziz³

2018

SDS

View full text Add to dashboard Cite

show abstract

“…The most commonly utilized color system for color assessment is the CIELAB system, which defines the color characteristics as L*, a*, and b*. [20][21][22][23][24][25][26] L* represents brightness, a* represents the red-green coordinates, and b* represents the yellow-blue coordinates. The CIELAB system can mathematically express the color difference (∆E) between the two objects.…”

Section: Introductionmentioning

confidence: 99%

Antifungal, optical, and mechanical properties of polymethylmethacrylate material incorporated with silanized zinc oxide nanoparticles

Kamonkhantikul

Arksornnukit

Takahashi

2017

IJN

View full text Add to dashboard Cite

“…The measurement of color difference is considered an important problem for color analysis. The practical application of color difference is mostly found in clinical dentistry, where the ability to reproduce the exact shade of natural teeth using restorative dental material is considered a challenging problem [51][52][53][54][55][56]. The other useful applications of color difference include contentbased retrieval [57], quality inspection of food [58,59], and video compression [60], but it has not been well explored for saliency based segmentation of melanoma skin lesion in dermoscopic images.…”

Section: Perceptual Color Differencementioning

confidence: 99%

Segmentation of Melanoma Skin Lesion Using Perceptual Color Difference Saliency with Morphological Analysis

Olugbara

Taiwo

Heukelman

2018

Mathematical Problems in Engineering

View full text Add to dashboard Cite

The prevalence of melanoma skin cancer disease is rapidly increasing as recorded death cases of its patients continue to annually escalate. Reliable segmentation of skin lesion is one essential requirement of an efficient noninvasive computer aided diagnosis tool for accelerating the identification process of melanoma. This paper presents a new algorithm based on perceptual color difference saliency along with binary morphological analysis for segmentation of melanoma skin lesion in dermoscopic images. The new algorithm is compared with existing image segmentation algorithms on benchmark dermoscopic images acquired from public corpora. Results of both qualitative and quantitative evaluations of the new algorithm are encouraging as the algorithm performs excellently in comparison with the existing image segmentation algorithms.

show abstract

Assessment of perceptibility and acceptability of color difference of denture teeth

Cited by 104 publications

References 21 publications

Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Antifungal, optical, and mechanical properties of polymethylmethacrylate material incorporated with silanized zinc oxide nanoparticles

Segmentation of Melanoma Skin Lesion Using Perceptual Color Difference Saliency with Morphological Analysis

Contact Info

Product

Resources

About