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Colorimetric Assessment of Different Tooth Whitening Procedures

Jelena Paliska ; Studentica Stomatološkog fakulteta Sveučilišta u Zagrebu
Andro Stipetić ; Privatna stomatološka ordinacija, Zagreb
Zrinka Tarle ; Zavod za endodonciju i restaurativnu stomatologiju Stomatološkog fakulteta Sveučilišta u Zagrebu
Mira Ristić ; Institut Ruđer Bošković, Zagreb, Hrvatska
Ticijana Ban ; Institut za fiziku, Zagreb, Hrvatska
Nataša Vujićić ; Institut za fiziku, Zagreb, Hrvatska
Goran Pichler ; Institut za fiziku, Zagreb, Hrvatska

Puni tekst: hrvatski pdf 292 Kb

str. 258-267

preuzimanja: 517


Puni tekst: engleski pdf 292 Kb

str. 258-267

preuzimanja: 730



Objective: To study the efficiency of four different tooth whitening procedures we examined 30% carbamide peroxide gel alone and compared it with two available in-office whitening methods (Discus Dental, Culver City, CA, USA and Beyond Technology Corp, Santa Clara, CA, USA) and a procedure involving a femtosecond laser which consists of a 6W green laser pump (Millennium, Spectra Physics) and a mode-locked laser (Tsunami, Spectra Physics) which have not been clinically tested so far. Material and Methods: 40 pastilles of hydroxylapatite were used and immersed in green tea for 8 hours. After drying, pastilles were randomly divided into 4 groups, each consisting of 10 pastilles and treated with one of the 4 bleaching procedures. The color of pastilles was determined by the colorimeter in the RGB index prior to immersion into the tea, after the immersion and after the whitening treatment. Non-parametric tests were used for the analysis of colorimetric sum values - Kruskal-Wallis and Mann-Whitney test for independent samples and Wilcoxon test for dependent samples. Results: The colorimetric sum value for the pastilles treated with the gel only was 3024.42, for the pastilles treated with ZOOM 2 it was 2999.74, for the pastilles treated with Beyond it was 2944.12 and for the laser-treated pastilles it was 2687.22. The best results were obtained using the 30% carbamide peroxide gel and ZOOM2, followed by Beyond and the femtosecond laser method, which exhibited a whitening effect proportional to treatment duration and gel concentration. Conclusion: Although all four bleaching methods proved effective, the final result of bleaching depends upon the duration of treatment and the type and concentration of the gel applied.

Ključne riječi

Tooth Bleaching; Carbomide Peroxide; Laser

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Podaci na drugim jezicima: hrvatski

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