S Kossatz's research while affiliated with State University of Ponta Grossa and other places
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Publications (6)
Objective: To compare the efficacy, color stability, and tooth sensitivity (TS) of combined bleaching, using a modified protocol with at-home bleaching.
Methods: Eighty participants were randomized into two groups. In the combined group, a desensitizing gel was applied (10 minutes) prior
to in-office bleaching (35% hydrogen peroxide (H2O2), 2×15 mi...
Objective: To compare the efficacy, color stability, and tooth sensitivity (TS) of combined bleaching, using a modified protocol with at-home bleaching.
Methods: Eighty participants were randomized into two groups. In the combined group, a desensitizing gel was applied (10 minutes) prior to in-office bleaching (35% hydrogen peroxide (H2O2), 2×15 mi...
Objectives: The aim of this randomized double-blind controlled clinical trial was to evaluate different protocols for at-home use of 10% hydrogen peroxide in whitening effectiveness and tooth sensitivity.
Methods: Seventy-two patients were selected according to the inclusion and exclusion criteria, with the upper central incisors having color A2 or...
Aim: The purpose of this study was to evaluate the dental effect and sensitivity of at-home dental bleaching with 10% hydrogen peroxide (H2O2). Materials and methods: Twenty volunteers with A2 or darker central incisors were selected for this study. Was used 10% H2O2 for thirty minutes twice a day, for two weeks. Shade evaluation was assessed visua...
Objectives:
To evaluate the risk for and intensity of tooth sensitivity and color change of at-home dental bleaching with 4% and 10% hydrogen peroxide (HP).
Methods:
For this study, 78 patients were selected according to the inclusion and exclusion criteria and randomized into two groups: HP 4 (White Class 4%, FGM) and HP 10 (White Class 10%, FG...
Objective:
This study aimed to determine if the combination of opioids and nonopioids analgesics (Tylex) may provide a better analgesic effect.
Method:
A triple-blind, parallel, randomized two-center clinical trial was conducted with 105 healthy patients who received either a placebo or a combination of acetaminophen/codeine. The first dose of T...
Citations
... Considering that this was the first randomized clinical study that showed that the use of orthodontic appliances disturbs the bleaching process to some degree, it seems to be an important conclusion. However, the bleaching efficacy can be potentially improved with one additional session of in-office bleaching [40] or by associating the present treatment with at-home bleaching [41,42,43] Future clinical studies evaluating this hypothesis should be conducted. ...
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... O protocolo de quatro semanas clareou de forma semelhante ao protocolo de 120 minutos por dia, com menor intensidade de sensibilidade dentária e alta satisfação do paciente. Chemin et al. (2021) realizaram uma pesquisa semelhante usando peróxido de hidrogênio a 10%. Após comparar uma aplicação diária de 15 minutos com uma aplicação diária de 30 minutos, ambas durante 14 dias, constatou que o efeito clareador foi significativo e que o risco absoluto e a sensibilidade dentária foram semelhantes entre os grupos. ...
... In dentistry, hydrogen peroxide is widely utilized across concentrations ranging from 5% to 35%, functioning as a potent oxidizing agent that generates reactive oxygen molecules and peroxide anions. Importantly, the body naturally produces, regulates, and eliminates hydrogen peroxide as part of its normal physiological processes, employing diverse defense mechanisms to mitigate oxidative stress [10,11]. In contrast to hydrogen peroxide, carbamide peroxide (CH6N2O3) exists as a white crystalline solid that releases oxygen upon contact with water. ...
... Generally, dental bleaching is more popular because it is more conservative and less invasive. Dental Bleaching agents use chemicals, such as hydrogen peroxide and carbamide peroxide, the different concentrations according to individual clinical needs [3][4][5]. It is reported that high concentrations of these ingredients will cause tooth sensitivity [3], gingival irritation [5], and potentially have side effects on the enamel and restorative materials [4]. ...
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... Other protocols, such as desensitization and remineralization with different active agents (potassium nitrate, calcium phosphate, fluoride sodium) applied topically or incorporated into the bleaching agent were the focus of other clinical studies [22][23][24][25]. The prescription of anti-inflammatories, opioids, and corticosteroid drugs [26][27][28][29] were also investigated. ...
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