The color analysis of nanocomposite material before and after exposure to whitening toothpastes using a portable spectrophotometer

Kameneva S.V.

First Saint-Petersburg State Medical University named after I.P. Pavlov, Saint-Petersburg, Russia

Kushchenko N.V.

First Saint-Petersburg State Medical University named after I.P. Pavlov, Saint-Petersburg, Russia

Orehova L.Ju.

GBOU VPO «Pervyj Sankt-Peterburgskij gosudarstvennyj meditsinskij universitet im. akad. I.P. Pavlova» Minzdrava Rossii, Gorodskoj parodontologicheskij tsentr «PAKS», Sankt-Peterburg, Rossija

Prokhorova O.V.

GBOU VPO "Ural'skaia gosudarstvennaia meditsinskaia akademiia" Minzdrava Rossii;
Detskaia gorodskaia bol'nitsa #10;
Gorodskoĭ perinatal'nyĭ tsentr, Moskva

Demenok A.S.

ZAO 'Quality Control', St. Petersburg, Russia

The color analysis of nanocomposite material before and after exposure to whitening toothpastes using a portable spectrophotometer

Authors:

Kameneva S.V., Kushchenko N.V., Orehova L.Ju., Prokhorova O.V., Demenok A.S.

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Journal: Stomatology. 2020;99(1): 7‑11

DOI: 10.17116/stomat2020990117

Downloaded: 36

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To cite this article:

Kameneva SV, Kushchenko NV, Orehova LJu, Prokhorova OV, Demenok AS. The color analysis of nanocomposite material before and after exposure to whitening toothpastes using a portable spectrophotometer. Stomatology. 2020;99(1):7‑11. (In Russ.)
https://doi.org/10.17116/stomat2020990117

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The purpose of the study was to determine the effect of whitening toothpastes on the color of a nanocomposite material using a spectrophotometer. Materials and methods. The study involved 50 samples from nanocomposite restoration material which were exposed under laboratory conditions to brushing with one of 4 types of toothpastes (control with no bleaching agents, peroxide paste with carbamide, abrasive and enzyme-based pastes). Using the parameters a, b and L obtained by spectrophotometry, delta E (ΔE) value was calculated. To determine the maximum and minimum A posteriori comparisons by the Scheffe method were used to influence the delta E parameter after exposure to the pastes. Oxygen-containing paste (OZPP) had a maximum effect on the increase of the ΔE parameter, ΔE=1.03 comparing to ΔE=0.20 in control toothpaste. The isolated effect of a toothbrush resulted in a large change in the parameter ΔE, compared to the effect of a controls. However, the ΔE does not indicate the clarification of the material, but only a change in color relative to the initial measurement. As a result of spectrophotometry and statistical data processing, it was found that all pastes had a sufficient effect on the color change for the device to determine, but this change was not noticeable to the human eye.

Keywords:

Whitening toothpastes

Spectro-guide spectrophotometer

discolorite

tooth color determination

nanocomposite

Authors:

Kameneva S.V.

First Saint-Petersburg State Medical University named after I.P. Pavlov, Saint-Petersburg, Russia

Kushchenko N.V.

First Saint-Petersburg State Medical University named after I.P. Pavlov, Saint-Petersburg, Russia

Orehova L.Ju.

GBOU VPO «Pervyj Sankt-Peterburgskij gosudarstvennyj meditsinskij universitet im. akad. I.P. Pavlova» Minzdrava Rossii, Gorodskoj parodontologicheskij tsentr «PAKS», Sankt-Peterburg, Rossija

Prokhorova O.V.

GBOU VPO "Ural'skaia gosudarstvennaia meditsinskaia akademiia" Minzdrava Rossii;
Detskaia gorodskaia bol'nitsa #10;
Gorodskoĭ perinatal'nyĭ tsentr, Moskva

Demenok A.S.

ZAO 'Quality Control', St. Petersburg, Russia

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