Use of an applicator brush with high concentration bleaching gels

Bernardi, Laís Giacomini; Favoreto, Michael Willian; Carneiro, Taynara de Souza; Mena-Serrano, Alexandra; Borges, Christiane Philippini Ferreira; Reis, Alessandra; Loguércio, Alessandro Dourado

doi:10.1007/s00784-022-04594-8

Cited by 13 publications

(37 citation statements)

References 33 publications

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“…The known concentrations of HP were obtained using a Cary UV–Vis 50 spectrophotometer (Varian, Palo Alto, CA, USA). This procedure yielded a standard reference line for the extrapolation of the study samples' results ( R = 0.992; not shown data) 32,41 …”

Section: Methodsmentioning

confidence: 99%

“…After specimen preparation, new radiographs (Timex 70C; Gnatus) were taken to verify the buccal surface thickness of the specimens by groups measured with the New IDA software (Dabi Atlante). 32,41 The premolars were procured from the Human Teeth Bank of the same university when all teeth were stored in distilled water. Only teeth extracted within the last 6 months were selected for use in the present study.…”

Section: Specimen Preparationmentioning

confidence: 99%

“…This procedure yielded a standard reference line for the extrapolation of the study samples' results (R = 0.992; not shown data). 32,41 For quality control measurements, the pH and initial concentration were measured. The pH of each bleaching agent was measured with a pH meter placed directly in contact with a bleaching gel (Extech pH 100: ExStik pH Meter; Extech Instruments, Nashia, NH, USA; Table 1).…”

Section: Obtaining the Analytical Curve And Quality Control Measurementsmentioning

confidence: 99%

“…25 this is the most used to measure the amount of HP inside the pulp chamber. [9][10][11]18,19,22,23,[27][28][29]32,33,[41][42][43] According to the Beer Law, absorbance directly corresponds to the concentration. Therefore, the concentration of HP (μg/mL) was determined by comparing it with the calibration curve previously obtained.…”

Section: Treatment Bleaching Protocols and Hp Quantification Into The...mentioning

confidence: 99%

“…Also, it is easy to use by the patient himself because all commercial brands include an applicator, similar to the brushes used to apply nail polish. It has already been demonstrated that when a brush applicator was used, a thin layer was achieved due to the increase in the contact surface of the HP with the tooth 32,41 . Recently, at least two studies showed that the thinner the bleaching layer, the less penetration of HP into the pulp, 32,41 and this makes the use of bleaching varnishes seemingly promising 33…”

Section: Introductionmentioning

confidence: 99%

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In vitro evaluation of the effect of different bleaching varnishes: Hydrogen peroxide penetration into the pulp chamber and color change

Carneiro,

Favoreto,

Mena‐Serrano

et al. 2023

J Esthet Restor Dent

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ObjectiveTo evaluate the penetration of hydrogen peroxide (HP) into the pulp chamber and the color change of different bleaching varnishes in low concentrations used for at‐home bleaching.Materials and MethodsNinety healthy premolars were used, randomly distributed into nine groups (n = 10) according to bleaching varnish (PL, PolaLuminate; VS, VivaStyle Paint On Plus; CA, Cavex Bite&White whitening pen and; AW AlignerWhite) and time (10 and 30 min), and a control group (no bleaching). The penetration of HP was evaluated by UV–Vis spectroscopy. To evaluate the color change (ΔEab, ΔE00, ΔWID) a digital spectrophotometer was used (α = 0.05).ResultsThe AW group in 10 min and the control group showed similar and lower HP penetration in the pulp chamber when compared to the other groups (p = 0.003). Increasing the application time to 30 minutes elevated the amount of HP inside the pulp chamber for all groups (p = 0.003), except for PL (p > 0.05). When applied for 30 min all bleaching varnishes showed higher color change (ΔWID) when compared to 10 min (p = 0.04).ConclusionsFor all bleaching varnishes evaluated, PolaLuminate applied for 30 min showed lower penetration into the pulp chamber and higher bleaching effects.Clinical SignificanceThe use of bleaching varnishes seems promising for teeth bleaching, but it varies according to user product and protocol.

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Section: Methodsmentioning

confidence: 99%

Section: Specimen Preparationmentioning

confidence: 99%

Section: Obtaining the Analytical Curve And Quality Control Measurementsmentioning

confidence: 99%