Effect of light energy on peroxide tooth bleaching

Luk, Karen; Tam, Laura E.; Hubert, Manfred

doi:10.14219/jada.archive.2004.0151

Cited by 213 publications

(191 citation statements)

References 16 publications

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“…In the current study, CO2 provided acceptable bleaching results. It should be remembered that (as stated by Luk et al 24 in 2004) temperature rise following CO2 laser application can have deleterious effects on the dental pulp. Therefore, such treatment is not recommended in vivo.…”

Section: Discussionmentioning

confidence: 97%

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

et al. 2017

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Introduction:The demand for esthetic dental treatments is increasing in recent years mainly due to improved oral hygiene and better maintenance of oral health and teeth in older individuals. Bleaching of discolored anterior teeth is the most popular among esthetic dental treatments. Even individuals with sound teeth and adequate esthetics seek to have whiter teeth in the anterior region. The aim of this study was to evaluate tooth color changes following conventional in-office bleaching techniques compared to light-activated methods using different light sources. Methods: Seventy sound anterior teeth (devoided of caries and/or fracture), extracted for periodontal and orthodontic reasons were selected and allocated to 7 groups: (A) control, (B) conventional bleaching (C) LED-activated bleaching, (D) KTP laser-activated bleaching, (E) diode laseractivated bleaching, (F) Nd:YAG laser-activated bleaching and (G) CO2 laser-activated bleaching. Colorimetric evaluation was carried out before and after treatment using a spectrophotoradiometer. Data were analyzed by one-and two-way analysis of variance (ANOVA) as well as multiple comparison methods. Results:The results showed that all bleaching procedures were effective in reducing the yellowness index. However, the KTP laser-activated bleaching was significantly more effective than the other techniques in 95% confidence level. It was also seen that CO2 laser activated method has outperformed groups E, F and G and the conventional bleaching without light activation was not effective at all and represented similar results with the control group. Furthermore, the groups E and G had almost the same results in decreasing the yellowness index. Conclusion:The results showed that all bleaching techniques were effective however, the KTP laser-activated bleaching was significantly more efficient, closely followed by the CO2 laseractivated bleaching technique.

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Section: Discussionmentioning

confidence: 97%

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

et al. 2017

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“…The few studies available suggest that the effect produced by a single chairside application of H 2 O 2 gel is almost inconspicuous, making questionable the real value of many "power bleaching" systems. 15,16 The limitation of chairside techniques might be related to the limited application time, which might not be fully compensated by the use of higher concentrations of active ingredients. Moreover, relatively long clinical experience gained with former chairside bleaching techniques (making use of the same bleaching product and activation principle)…”

Section: Q U I N T E S S E N C E I N T E R N At I O N a L D I E T S Cmentioning

confidence: 99%

“…[11][12][13] In contrast, only scarce information is available concerning the efficacy and especially color stability achieved with in-office or so-called power bleaching techniques. 16,31,42,43 The few studies attempting to evaluate the role of light activation generally fail to demonstrate a crucial effect 15,44,45 or showed an improvement only for some bleaching materials. 16 On the other hand, many studies have reported a satisfactory bleaching effect of the White Strips 58,59 as well as a superior efficacy to other over-the-counter systems [60][61][62] or an action equal to bleaching with custom trays and CP.…”

Section: Q U I N T E S S E N C E I N T E R N At I O N a L D I E T S Cmentioning

confidence: 99%

“…16,31,42,43 The few studies attempting to evaluate the role of light activation generally fail to demonstrate a crucial effect 15,44,45 or showed an improvement only for some bleaching materials. 16 On the other hand, many studies have reported a satisfactory bleaching effect of the White Strips 58,59 as well as a superior efficacy to other over-the-counter systems [60][61][62] or an action equal to bleaching with custom trays and CP. 58,60,63,64 However, in the later clinical trials, measurements were performed at the end of the treatment, which does not take into consideration the rebound effect observed within the forthcoming days and weeks.…”

Section: Q U I N T E S S E N C E I N T E R N At I O N a L D I E T S Cmentioning

confidence: 99%

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In vitro colorimetric evaluation of the efficacy of various bleaching methods and products

Dietschi¹,

Rossier²,

Krejci³

2007

The Journal of Prosthetic Dentistry

101

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“…Accordingly then, high-intensity light sources have been used to raise the temperatures of H2O2-containing bleaching gels and accelerate the chemical reaction rates of the tooth bleaching process 4) . To date, a variety of light sources with varying wavelengths and spectral power characteristics have been used, such as halogen curing lights, plasma arc lamps, lasers, and light-emitting diodes 1,5) .…”

Section: Introductionmentioning

confidence: 99%

Effects of light sources and visible light-activated titanium dioxide photocatalyst on bleaching

et al. 2009

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The objective of this study was to evaluate, using methylene blue (MB), the effects of various light sources on the bleaching action of hydrogen peroxide (H2O2) with two titanium dioxide (TiO2) photocatalysts -an ultraviolet light-activated TiO2 photocatalyst (UV TiO2) versus a visible light-activated TiO2 photocatalyst (VL-TiO2). Five experimental solutions (VL-TiO2+H2O2, UV-TiO2+H2O2, H2O2, VL-TiO2, UV-TiO2) were prepared by mixing varying concentrations of H2O2 and/or TiO2 photocatalyst with MB solution. For H2O2-containing solutions (VL-TiO2+H2O2, UV-TiO2+H2O2, and H2O2), the concentration of H2O2 was adjusted to 3.5%. For the four different light sources, low-and high-intensity halogen lamps and blue LED LCUs were used. All the experimental solutions were irradiated by each of the light sources for 7 minutes, and the absorbance at 660 nm was measured every 30 seconds to determine the concentration of MB as an indicator of the bleaching effect. On the interaction between the effects of light source and bleaching treatment, the high-intensity halogen with VL-TiO2+H2O2 caused the most significant reduction in MB concentration. On the effect of light sources, the halogen lamps resulted in a greater bleaching effect than the blue LED LCUs.

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Effect of light energy on peroxide tooth bleaching

Cited by 213 publications

References 16 publications

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

Comparison of Tooth Color Change After Bleaching With Conventional and Different Light-Activated Methods

In vitro colorimetric evaluation of the efficacy of various bleaching methods and products

Effects of light sources and visible light-activated titanium dioxide photocatalyst on bleaching

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