Longevity, Esthetic Perception, and Psychosocial Impact of Teeth Bleaching by Low (6%) Hydrogen Peroxide Concentration for In-office Treatment: A Randomized Clinical Trial

Abstract

The two compounds remained effective at nine months, with a slight rebound of color, and maintained their objective color difference but not the subjective color difference. Patients were satisfied with the bleaching procedure, and this had a positive impact on esthetic perception and a positive psychosocial impact at the nine-month recall.

Teeth bleaching with low concentrations of hydrogen peroxide (6%) and catalyzed by LED blue (450 ± 10 nm) and laser infrared (808 ± 10 nm) light for in‐office treatment: Randomized clinical trial 1‐year follow‐up

“…The results based on the Δ L , Δ a , and Δ b were very similar except in a preprophylaxis period that was explained by stains mainly affecting the luminosity of color of both groups. Recent trials showed that the color had a slight change during prophylaxis; this concurs with our results …”

Randomized clinical trials of dental bleaching – Compliance with the CONSORT Statement: a systematic review

“…3,4,5,6 Researchers have used clinical or in vitro studies to obtain data that can Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.…”

New Trends on In-office Tooth Bleaching

“…More recently, a bleaching agent with concentration even lower, 6% hydrogen peroxide containing TiO_N nanoparticles, has been studied [4,31,32]. Martin et al (23) evaluated the efficacy of this new bleaching agent with 6% of hydrogen peroxide containing TiO_N [24]. They showed a reductionof the tooth sensitivity intensity and a clinically insignificant lower effectiveness a 35% hydrogen peroxide agent.…”

“…Regarding the effect on the aesthetic perception and psychosocial impact, there are some reports of Martin et al [4] and Fernandez et al [24] showing a positive effect on these two areas, topics that you should be much more investigation in the future.…”

“…More recently, the incorporation of titanium dioxide nanoparticles doped with nitrogen (TiO_N), as semiconductor agents, to bleaching agents with lower concentration of hydrogen peroxide (3.5-15%) have been introduced [4,24,25]. The TiO_N nanoparticles, when activated by a light source, can catalyze the hydrogen peroxide oxidation reaction, allowing reduction of agent concentration.Also the chemical reaction would be maintained at a more superficial level, reducing the hydrogen peroxide penetration towards the pulp-dentin complex.…”