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Atmospheric Pressure Plasma Jet as an Accelerator of Tooth Bleaching


Šantak, Vedran; Zaplotnik, Rok; Milošević, Slobodan; Klarić, Eva; Tarle, Zrinka
Atmospheric Pressure Plasma Jet as an Accelerator of Tooth Bleaching // Acta stomatologica Croatica, 48 (2014), 4; 268-278 doi:10.15644/asc48/4/4 (međunarodna recenzija, članak, znanstveni)


Naslov
Atmospheric Pressure Plasma Jet as an Accelerator of Tooth Bleaching

Autori
Šantak, Vedran ; Zaplotnik, Rok ; Milošević, Slobodan ; Klarić, Eva ; Tarle, Zrinka

Izvornik
Acta stomatologica Croatica (0001-7019) 48 (2014), 4; 268-278

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Tooth Bleaching; Gels; Hydrogen Peroxide; Atmospheric Pressure Plasma Jet; Spectrum Analysis; Durapatite

Sažetak
Objective: To study the effect of atmospheric pressure plasma (APP) jet as a potential accelerator of the degradation of hydrogen peroxide in bleaching gels which could lead to better and faster bleaching. Material and Methods: 25 pastilles of hydroxylapatite were colored in green tea for 8 hours and were randomly divided into five groups (n = 5). The bleaching process was performed with 30% and 40% hydrogen peroxide (HP) gel alone and in conjunction with helium APP jet. During the bleaching treatment, optical emission spectroscopy and non-contact surface temperature measurement using pyrometer were performed. Color of the pastilles was determined by a red– green–blue (RGB) colorimeter. PH values of bleaching gels were measured before and after the plasma treatment on additional 10 pastilles using a pH meter with contact pH electrode. Results: The color measurements of pastilles before and after the treatment showed that treatment with APP jet improved the bleaching effect by 32% and 15% in the case of 30 % and 40% HP gel. Better results were obtained approximately six times faster than with a procedure suggested by the bleaching gel manufacturer. Optical emission spectroscopy proved that plasma has a chemically active role on the gel. After the APP treatment, pH values of bleaching gels dropped to about 50– 75% of their initial value while the surface temperature increased by 8–10˚C above baseline. Conclusion: The use of plasma jet provides more effective bleaching results in a shorter period of time without a significant temperature increase which may cause damage of the surrounding tissue.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Dentalna medicina



POVEZANOST RADA


Projekt / tema
065-0352851-0410 - Nanostruktura restaurativnih materijala i interakcije s tvrdim zubnim tkivima (Zrinka Tarle, )
HRZZ-IP-2013-11-2753 - Dijagnostika Interakcije lasera i hladne plazme (Slobodan Milošević, )

Ustanove
Institut za fiziku, Zagreb,
Stomatološki fakultet, Zagreb

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Emerging Sources Citation Index (ESCI)
  • Scopus


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