Determination of the Whitening Effect of Toothpastes on Human Teeth

Abstract

Objective: The desire of individuals to have whiter teeth increases the interest in tooth whitening products. Our aim was to in vitro study the whitening effect of hydrogen peroxide, blue covarine and active charcoal containing whitening toothpastes on human teeth. Materials and Methods: A total of 40 extracted human incisor teeth were used in the study. To measure the whitening effect of toothpastes, the teeth were divided into four subgroups and placed in the phantom tooth jaw model. Then, daily brushing was done with an electric toothbrush. The colors of the teeth were measured initially using the spectrophotometer (single point and bleached shade mode) and at the end of 7th, 14th and 28th days. Whitening effectiveness of toothpastes were studied according to CIEDE2000 formula (∆E00) and shade guide units (SGU). One-way analysis of variance (ANOVA) and Tukey test were used in the statistical analysis of the data. (p<0.05). Results: Activated charcoal containing toothpaste showed the greatest whitening effect at the end of 7th, 14th and 28th days (p<0.05). There was no statistically significant difference between the whitening effects of hydrogen peroxide and conventional toothpaste (p>0.05). Blue covarine containing toothpaste had statistically the lowest whitening effect (p<0.05). Conclusions: All toothpastes showed a whitening effect on the teeth after 7 days of use. Activated charcoal containing toothpaste showed more whitening effect after 28 days of use than hydrogen peroxide, blue covarine and traditional toothpaste.

Eficácia dos dentifrícios de ação clareadora: Uma revisão de literatura

“…As principais diferenças que surgiram neste estudo foram com relação aos mecanismos de ação que cada dentifrício possuía e em como esse fator influenciou na evidenciação da sua efetividade. Para os dentifrícios compostos pelo peróxido de hidrogênio e pela covarina azul, o surgimento do clareamento aconteceu após os 7 dias de uso, enquanto que o dentifrício possuindo o carvão ativado apresentou um melhor efeito clareador somente depois da passagem da data limite (Aydin et al, 2022).…”

Farklı Beyazlatıcı Diş Macunlarının Minenin Renk Değişimi ve Yüzey Pürüzlülüğü Üzerindeki Etkilerinin İn Vitro Olarak Değerlendirilmesi

“…31 aktif kömür tozunun normal ve beyazlatıcı diş macunları ile kombine kullanıldığında beyazlatıcı etkinliğinin artmadığını belirtmişlerdir. Bu çalışmada da literatürdeki çalışmaların 31,36 bulgularına benzer şekilde her ne kadar beyazlatıcılı macunlar arasında istatistiksel olarak anlamlı fark gözlenmese de aktif kömür içeren diş macununun en yüksek beyazlatma etkisine sahip olduğu gözlendi.…”

Charcoal-containing toothpastes

“…Study results show that charcoal may not have any teeth-whitening properties. After 28 days of use, toothpaste with activated charcoal outperformed hydrogen peroxide, blue covariate, and ordinary toothpaste in another trial by Aydın et al (43). Additionally, toothpaste containing coal has been found to delay the restoration of tooth color when used to delay the recurrence of surface staining on healthy teeth following professional cleaning (40).…”