Performance of Five Commercially Available Tooth Color‐Measuring Devices

Đozić, Alma; Kleverlaan, Cornelis J.; Elzohairy, Ahmed; Feilzer, Albert J.; Khashayar, Ghazal

doi:10.1111/j.1532-849x.2007.00163.x

Cited by 191 publications

(209 citation statements)

References 30 publications

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“…Viewing condition used for the colorimetric evaluation was (D65/20) according to the corresponding and pertinent literatures. 17,18 The yellowness and whiteness indices were calculated according to ASTM E313-10 standard. 19 Viewing conditions were set to D65/2 0 for calculation of indices.…”

Section: Colorimetrymentioning

confidence: 99%

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

et al. 2017

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Introduction:The demand for esthetic dental treatments is increasing in recent years mainly due to improved oral hygiene and better maintenance of oral health and teeth in older individuals. Bleaching of discolored anterior teeth is the most popular among esthetic dental treatments. Even individuals with sound teeth and adequate esthetics seek to have whiter teeth in the anterior region. The aim of this study was to evaluate tooth color changes following conventional in-office bleaching techniques compared to light-activated methods using different light sources. Methods: Seventy sound anterior teeth (devoided of caries and/or fracture), extracted for periodontal and orthodontic reasons were selected and allocated to 7 groups: (A) control, (B) conventional bleaching (C) LED-activated bleaching, (D) KTP laser-activated bleaching, (E) diode laseractivated bleaching, (F) Nd:YAG laser-activated bleaching and (G) CO2 laser-activated bleaching. Colorimetric evaluation was carried out before and after treatment using a spectrophotoradiometer. Data were analyzed by one-and two-way analysis of variance (ANOVA) as well as multiple comparison methods. Results:The results showed that all bleaching procedures were effective in reducing the yellowness index. However, the KTP laser-activated bleaching was significantly more effective than the other techniques in 95% confidence level. It was also seen that CO2 laser activated method has outperformed groups E, F and G and the conventional bleaching without light activation was not effective at all and represented similar results with the control group. Furthermore, the groups E and G had almost the same results in decreasing the yellowness index. Conclusion:The results showed that all bleaching techniques were effective however, the KTP laser-activated bleaching was significantly more efficient, closely followed by the CO2 laseractivated bleaching technique.

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Section: Colorimetrymentioning

confidence: 99%

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

et al. 2017

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“…Spectrophotometers are devices that determine the intensity of reflected or transmitted light as a function of a light-source wavelength. 8 The optical light settings used in CMDs can have different geometries; illumination at 0 degrees and observation at 45 degrees (0/45), illumination at 45 degrees and observation at 0 degrees (45/0), or a 0/0 degree optical geometry where the light beam and the light detector are in the exact opposite direction. 1 There are not only different optical geometries between different CMDs but also different methods for measuring optical light 9 : spot-measurement devices and complete-tooth-measurement devices.…”

Section: Introductionmentioning

confidence: 99%

Data Comparison Between Two Dental Spectrophotometers

Khashayar

Đozić²,

Kleverlaan³

et al. 2012

Operative Dentistry

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“…Dozic y colaboradores (16), muestran que un estudio mundial dio a conocer que tan solo el 80 % de los programas de pregrado y el 82 % de los programas de posgrado incluyen el curso de "color" o de "color en odontología" en sus cátedras y que el número en promedio de horas que se le dedica a estos temas es para pregrado de 4 horas y para posgrado de 5,5 horas. En la Facultad donde se realizó este estudio, se dedica en el pregrado de Odontología 2 horas y en el posgrado de Rehabilitación Oral 3 horas durante todo el plan de estudios.…”

Section: Discussionunclassified

Concordancia entre la toma de color del diente con espectrofotómetros digitales y por el operador / Concordance between Digital Spectrophotometer and Human Operator in Tooth Color Selection

et al. 2017

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RESUMEN. Antecedentes: Una de las variables que dificulta la precisión en la toma del color dental es la comunicación del color evaluado por el ojo humano, lo que genera diversidad de resultados entre diferentes operadores, por lo cual se han diseñado instrumentos para su evaluación objetiva. Objetivo: Evaluar la concordancia entre la toma digital de color del diente y la toma manual por el observador. Métodos: Se realizó un estudio de concordancia donde se evaluó el central superior izquierdo de 30 pacientes que cumplieron con los criterios de inclusión, se utilizaron dos espectrofotómetros (Easy Shade, Vita y Shade X, X Rite) y 3 evaluadores hombres de diferentes edades que utilizaron la guía Vita Toothguide 3D master. Resultados: la concordancia que se encontró entre las lecturas del color del diente obtenidas por los evaluadores y los espectrofotómetros fue muy baja. En valores continuos, se encontraron 3 concordancias moderadas entre: El evaluador 1 y el evaluador 2 (K=0,60; IC95 %: 0,37–0,83), el evaluador 2 y el espectrofotómetro 1 (K=0,56; IC95 %: 0,30-0,81) y entre las dos máquinas (K=0,47; IC95 %: 0,19–0,75). La cantidad de aciertos entre los operadores fue tan solo de 6 %, y para los espectrofotómetros fue del 20 %. Conclusión: La estandarización en la toma de color del diente sigue siendo uno de los grandes problemas de la rehabilitación oral y la estética que debe ser resuelto para disminuir las fallas en las prótesis y aumento de costos y complejidad en los tratamientos, especialmente en la estética dental.ABSTRACT. Background: One of the variables that hinders the accuracy of the dental color is the communication of the color evaluated by the human eye. This generates a diversity of results among different operators. Instruments have been designed for their objective evaluation. Purpose: To evaluate the concordance between the digital of color take of the tooth and the manual taking by the observer. Methods: A concordance study was performed. 30 left upper teeth of patients who met the inclusion criteria were evaluated. The color of each tooth was taken with two spectrophotometers (Easy Shade, Vita and Shade X, X Rite) and by three male evaluators of different ages using the Vita Toothguide 3D master guide. Results: The agreement between the readings of the tooth color obtained by the evaluators and the spectrophotometers was very low. In continuous values, only 3 moderate concordances were found between: evaluator 1 and evaluator 2 (K = 0.60, 95% CI: 0.37-0.83), assessor 2 and spectrophotometer 1 (K = 0, 56, 95% CI: 0.30-0.81) and between the two machines (K = 0.47, 95% CI: 0.19-0.75). Equal results among operators were only 6%, and for spectrophotometers it was 20%. Conclusion: The standardization of tooth color remains one of the main problems in oral rehabilitation and dental aesthetics. This must be resolved to reduce defects in prostheses and decrease the costs and complexity of treatments.

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Performance of Five Commercially Available Tooth Color‐Measuring Devices

Abstract: In the clinical setting, the Easyshade and Ikam systems were the most reliable. The other devices tested were more reliable in vitro than in vivo.

Cited by 191 publications

References 30 publications

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

Data Comparison Between Two Dental Spectrophotometers

Concordancia entre la toma de color del diente con espectrofotómetros digitales y por el operador / Concordance between Digital Spectrophotometer and Human Operator in Tooth Color Selection

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