scholarly journals Comparação sobre a eficácia e sensibilidade dos diferentes tipos de clareamento dental: uma revisão de literatura

2021 ◽  
Vol 10 (7) ◽  
pp. e12810716516
Author(s):  
Maria Paula Novaes Camargo Manna ◽  
Rafaela Henriques Moreira ◽  
Yuri de Lima Medeiros ◽  
Isabella Silva Santos ◽  
Augusto de Sousa Lana ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Tooth Bleaching ◽  
Carbamide Peroxide ◽  
Dentin Sensitivity

Nos dias atuais, a estética do sorriso vem crescendo no mercado, visto que muitos consideram como parte do padrão de beleza desejável, o sorriso alinhado e os dentes brancos. Assim sendo, o clareamento dental constitui um dos procedimentos mais procurados e realizados pelos cirurgiões-dentistas, no quesito estética. Dessa forma, o cirurgião-dentista deve ter uma base sólida de conhecimento a respeito, para que faça uma avaliação clínica e o correto diagnóstico da estrutura dental, indicando a melhor técnica em cada caso. Para tanto, foi realizada uma revisão de literatura sobre os tipos de clareamento dental, comparando-os quanto à eficácia, em relação à alteração de cor, e quanto à sensibilidade, com buscas nas bases de dados, Pubmed, Scielo e Scopus, através dos descritores: Tooth bleaching; Carbamide peroxide; Hydrogen Peroxide; Dentin Sensitivity. Foram considerados elegíveis estudos em inglês, português ou espanhol, publicados entre 01/2006 a 05/2021. Assim, notou-se que as técnicas de clareamento são capazes de atingir os mesmos resultados quanto à mudança de cor, mas com variação no tempo e indicação. Quanto à sensibilidade, há uma tendência dessa ser maior, quando usado gel de maior concentração. Porém, já existem atualmente, géis clareadores contendo substâncias dessensibilizantes, e/ou protocolos que podem ser utilizados, para que se tenha uma redução da mesma. Além disso, quando realizada a técnica de clareamento caseiro, sugere-se dar preferência ao gel de Peróxido de Carbamida na menor concentração, uma vez que esse apresenta menor risco de desenvolvimento de sensibilidade dentária e é eficaz, se comparado às maiores concentrações.

scholarly journals Combination of at-home and in-office bleaching techniques: case series

2021 ◽  
Vol 69 ◽  
Author(s):  
Marcela Alvarez FERRETTI ◽  
Matheus KURY ◽  
Beatriz Curvello de MENDONÇA ◽  
Marcelo GIANNINI ◽  
Vanessa CAVALLI ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Case Series ◽  
Tooth Bleaching ◽  
Central Incisor ◽  
Carbamide Peroxide ◽  
Tooth Sensitivity ◽  
Tooth Color ◽  
Shade Guide ◽  
At Home

ABSTRACT Tooth bleaching is one of the most conservative aesthetic techniques. At-home and in-office bleaching may be performed, as well as the combination of both techniques. As this combination may be done in different manners, distinct orders of combinations were proposed in this report. A 24 years-old man, whose upper central incisor and canine shades were A2 and A3 respectively, was initially treated by chair-side with 40-min application of 40% hydrogen peroxide (HP) for two sessions. Afterwards, an two-week overnight at-home bleaching was performed with 10% carbamide peroxide (CP). The shade of upper central incisors changed to 1M1 and canine was B1. Conversely, a 30 years-old woman was firstly conducted with at-home bleaching (overnight 4-weeks 10% CP) and, subsequently, with a single appointment of in-office bleaching for 45 minutes (35% HP). The shade of her upper central incisor changed from A1 to 0.5M1 and the upper canine from A3 to B1. The VITA classical (A1-D4) shade guide and VITA Bleached guide 3D-MASTER were used to determine the tooth color during the treatments. In both bleaching treatments, patients reported no significant tooth sensitivity and the final outcomes met their expectation.

scholarly journals Effects of Amorphous Calcium Phosphate Administration on Dental Sensitivity during In-Office and At-Home Interventions

2018 ◽  
Vol 6 (4) ◽  
pp. 52 ◽  
Author(s):  
Giacomo Oldoini ◽  
Antonino Bruno ◽  
Anna Genovesi ◽  
Luca Parisi
Keyword(s):  
Hydrogen Peroxide ◽  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Potassium Fluoride ◽  
Tooth Bleaching ◽  
Carbamide Peroxide ◽  
Casein Phosphopeptides ◽  
Group 2 ◽  
Group 1 ◽  
At Home

Background. Tooth bleaching is the most frequently employed whitening procedure in clinics. The major side effect of tooth bleaching is dental sensitivity during and after the treatment. Here, we evaluated whether the administration of amorphous calcium phosphate (ACP), during in-office and at-home procedures may impact on dental sensitivity. Methods. Eighty patients, responding to the study requirements were enrolled according to the following criteria. Group 1 (n = 40), received in-office, 10% ACP prior to 30% professional hydrogen peroxide application. The whitening procedure continued at home using 10% carbamide peroxide with 15% ACP for 15 days. Group 2 (n = 40) received only 30% hydrogen peroxide application and continued the whitening procedures at home, using 10% carbamide hydroxide, without ACP- Casein phosphopeptides (CPP), for 15 days. Dental sensitivity was recorded with a visual analogue scale (VAS) at baseline, immediately after, and at 15 days after treatment in the two groups. Results. We observed that patients receiving ACP in the bleaching mixture experienced decreased dental sensitivity (* p ≤ 0.05), as detected by VAS scale analysis immediately following the procedures. Patients receiving ACP-CPP during at-home procedures showed a statistically significant (*** p ≤ 0.0001) reduction of dental sensitivity. Conclusions. We demonstrated that ACP-CPP administration, while exerting the same whitening effects as in control subjects receiving potassium fluoride (PF), had an impact on the reduction of dental sensitivity, improving patient compliance.

scholarly journals Evaluation of morphological and chemical alterations in enamel, dentin and cementum after internal bleaching technique using different bleaching agents

2016 ◽  
Vol 19 (4) ◽  
pp. 56
Author(s):  
Nadia De Souza Ferreira ◽  
Paula Elaine Cardoso ◽  
Natalia Passos Ferreira ◽  
Amanda Costa Corocher ◽  
Isabela Ferreira Paulino ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Hydrogen Peroxide ◽  
Scanning Electron Microscopy ◽  
Tooth Bleaching ◽  
Sodium Perborate ◽  
Carbamide Peroxide ◽  
Organic Part ◽  
Calcium Phosphorus ◽  
And Control ◽  
Scanning Electron

<p><strong>Objective</strong>: The aim of this study was to evaluate the morphological and chemical alterations in enamel, dentin and cementum after internal bleaching using scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). <strong>Material and Methods:</strong> Seventy-two bovine incisor teeth were prepared, cut and bleached for 7 days as follows: HP: 35% hydrogen peroxide gel; HP+SP: 35% hydrogen peroxide gel + sodium perborate; CP: 37% carbamide peroxide gel; CP+SP: 37% carbamide peroxide gel + sodium perborate; SP: sodium perborate + water; and control: deionized water. The specimens were sectioned and prepared for morphological analysis under SEM and analysis of calcium, phosphorus, oxygen and carbon levels using EDS. <strong>Results</strong>: A significant reduction was found in the calcium levels in enamel after treatment with CP + SP and CP (p &lt; 0.05). Carbon (organic part) was hardly altered in enamel. A significant reduction in the calcium levels was found in dentin in Groups HP+SP, CP and CP+SP. Phosphorus levels increased after SP+H20 (p &lt; 0.05) and CP (p &lt; 0.05). Carbon levels showed little variation and the largest amount was found in Groups CP and CP+SP (p &lt; 0.05); in the other groups there was no alteration. A significant reduction in the calcium levels was found in the cementum in Group CP+SP (p &lt; 0.05). <strong>Conclusion</strong>: Alterations in the enamel, dentin and cementum compositions occurred after bleaching and these alterations showed to be less significant with sodium perborate and water.</p><p><strong>Keywords</strong>: Carbamide peroxide; Hydrogen peroxide; Scanning electron microscopy; Sodium perborate; Tooth bleaching.</p>

scholarly journals Effect of Short- and Long-term Use of Home and In-Office Bleaching with Carbamide Peroxide and Hydrogen Peroxide on Bleaching with Carbamide Peroxide and Hydrogen Peroxide on Enamel Microhardness Enamel Microhardness

2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Nazila Ameli ◽  
◽  
Niloofar Kianvash Rad ◽  
Farzane Nikpour ◽  
Raheb Ghorbani ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Dental Treatment ◽  
Artificial Saliva ◽  
Tooth Bleaching ◽  
Control Group ◽  
Bleaching Agent ◽  
Carbamide Peroxide ◽  
Dental Procedures ◽  
Before And After ◽  
At Home

Bleaching is a well-known esthetic dental treatment performed to lighten the tooth shade. Among different cosmetic dental procedures, including direct and indirect tooth-colored restorations, bleaching is likely the most conservative approach. Bleaching has been accepted well by patients and proven as a safe and effective approach. Objective: Tooth bleaching can be conducted at home or in offices. This study was performed to compare the enamel microhardness before bleaching and one and eight weeks after the application of different bleaching agents. Methods: Forty human premolars were randomly divided into four groups, and their buccal surface underwent a Vickers microhardness test before and after bleaching. Bleaching was performed with 40% hydrogen peroxide (HP) in-office bleaching agent (n = 10), 15% HP at-home bleaching agent (n = 10), and 15% carbamide peroxide (CP) at-home bleaching agent (n = 10) for two weeks. Ten samples were stored in artificial saliva and set as the control group. The microhardness of the samples was measured again one and eight weeks after bleaching. Results: The microhardness significantly decreased in the four groups one week after bleaching. Conclusion: The enamel microhardness was temporarily decreased by in-office bleaching. However, the microhardness increased with time and returned to the baseline value. Although the enamel microhardness initially reduced, it increased eight weeks after 15% CP at-home bleaching agent was applied.

scholarly journals In Vivo Effects of Two In-Office Vital Tooth Bleaching Systems on Enamel Permeability

2021 ◽  
Vol 5 (4) ◽  
pp. 98
Author(s):  
Angelica Bertacci ◽  
Gianfranco Ulian ◽  
Daniele Moro ◽  
Stefano Chersoni ◽  
Giovanni Valdrè
Keyword(s):  
Hydrogen Peroxide ◽  
Surface Morphology ◽  
Tooth Enamel ◽  
Tooth Bleaching ◽  
Carbamide Peroxide ◽  
Tooth Sensitivity ◽  
Hydrogen Peroxide Treatment ◽  
Enamel Structure ◽  
The Aesthetic

Tooth bleaching is a common treatment for the amelioration of the aesthetic of discoloured teeth. In this context, there are two common approaches that employ concentrated solutions (30–40 wt.%) of either hydrogen peroxide or carbamide peroxide as bleaching agents. However, there is an ongoing debate on the possible adverse effects of these different treatments on tooth health, such as variation of the enamel structure, surface morphology, and chemistry, which also affect tooth sensitivity. In the present work, a study on the effect of the two bleaching agents, a 35 wt.% solution of hydrogen peroxide and a 30 wt.% solution of carbamide peroxide, on the permeability and surface morphology of enamel is reported. The investigation was carried out on replicas of incisors obtained after different treatment times and for several patients, employing scanning electron microscopy to study the morphological features of the treated teeth. The significance of the analytical study was corroborated by a statistical analysis of the results. The collected data suggest that hydrogen peroxide treatment increases the enamel permeability, and this could be related with tooth sensitivity, whereas the carbamide peroxide solution increases the formation of precipitates on the tooth enamel.

scholarly journals Tooth Bleaching—a Critical Review of the Biological Aspects

2003 ◽  
Vol 14 (4) ◽  
pp. 292-304 ◽  
Author(s):  
J.E. Dahl ◽  
U. Pallesen
Keyword(s):  
Hydrogen Peroxide ◽  
Root Resorption ◽  
Cultured Cells ◽  
Active Agent ◽  
Tooth Bleaching ◽  
Cheek Pouch ◽  
Common Side Effect ◽  
Professional Judgment ◽  
Sodium Perborate ◽  
Carbamide Peroxide

Present tooth-bleaching techniques are based upon hydrogen peroxide as the active agent. It is applied directly, or produced in a chemical reaction from sodium perborate or carbamide peroxide. More than 90% immediate success has been reported for intracoronal bleaching of non-vital teeth, and in the period of 1–8 years’ observation time, from 10 to 40% of the initially successfully treated teeth needed re-treatment. Cervical root resorption is a possible consequence of internal bleaching and is more frequently observed in teeth treated with the thermo-catalytic procedure. When the external tooth-bleaching technique is used, the first subjective change in tooth color may be observed after 2–4 nights of tooth bleaching, and more than 90% satisfactory results have been reported. Tooth sensitivity is a common side-effect of external tooth bleaching observed in 15%-78% of the patients, but clinical studies addressing the risk of other adverse effects are lacking. Direct contact with hydrogen peroxide induced genotoxic effects in bacteria and cultured cells, whereas the effect was reduced or abolished in the presence of metabolizing enzymes. Several tumor-promoting studies, including the hamster cheek pouch model, indicated that hydrogen peroxide might act as a promoter. Multiple exposures of hydrogen peroxide have resulted in localized effects on the gastric mucosa, decreased food consumption, reduced weight gain, and blood chemistry changes in mice and rats. Our risk assessment revealed that a sufficient safety level was not reached in certain clinical situations of external tooth bleaching, such as bleaching one tooth arch with 35% carbamide peroxide, using several applications per day of 22% carbamide peroxide, and bleaching both arches simultaneously with 22% carbamide peroxide. The recommendation is to avoid using concentrations higher than 10% carbamide peroxide when one performs external bleaching. We advocate a selective use of external tooth bleaching based on high ethical standards and professional judgment.

scholarly journals CLAREAMENTO DENTAL EM PACIENTES COM HIPERSENSIBILIDADE: SÉRIE DE CASOS

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Sara Souza Castro ◽  
Clara Lemos Leal ◽  
Saryta Argolo ◽  
Juliana Felippi Azevedo ◽  
Paula Mathias ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Case Series ◽  
Potassium Nitrate ◽  
Tooth Bleaching ◽  
Dentin Hypersensitivity ◽  
Tooth Discoloration ◽  
Dentin Sensitivity ◽  
Clinical Cases

The possibility of pain resultant from tooth bleaching can limit the indication of this treatment in patients with pre-existing dentin hypersensitivity. Purpose: To provide a case series with alternatives for tooth bleaching that might reduce the pos-operative sensibility. Description of cases: Three patients with dentin sensitivity and complaining of tooth discoloration were selected. For each patient, a technique for tooth bleaching was randomly selected; using 15-35% hydrogen peroxide, and application of an desensitizing agent before or after the bleaching (toothpaste or 2% potassium nitrate). Conclusion: Bleaching was successfully performed in the three clinical cases. However, the previous desensitization using the toothpaste resulted in greater comfort for the patient.

scholarly journals Edemogenic test and hydrogen peroxide degradation rate of bleaching gels with different desensitizing agents

2018 ◽  
Vol 21 (2) ◽  
pp. 157
Author(s):  
André Luiz Fraga Briso ◽  
Marjorie Oliveira Gallinari ◽  
Francine Benetti ◽  
Diego Valentim ◽  
Carlos Roberto Emerenciano Bueno ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Vascular Permeability ◽  
Subcutaneous Tissue ◽  
The Other ◽  
Tooth Bleaching ◽  
Control Group ◽  
Carbamide Peroxide ◽  
Desensitizing Agents ◽  
Bleaching Gels ◽  
At Home

<p><strong>Objective</strong>: The at-home bleaching technique leads to the intimate contact of the bleaching gel with gingival tissues, so this study evaluated the immediate inflammatory response, through the edemogenic test, induced by at-home bleaching gels of 10% carbamide peroxide with different desensitizing agents, the quantification of hydrogen peroxide released and bleaching gels pH. <strong>Material</strong> <strong>and</strong> <strong>Methods</strong>: Forty-eight rats were divided into groups (n=12): CTRL-control group, WP-Whiteness Perfect 10% (FGM Produtos Odontológicos, Joinville, SC, Brazil), OPA-Opalescence 10% (Ultradent Products Inc., South Jordan, IT, USA), and PB-Power Bleaching (BM4, Palhoça, SC, Brazil). For the edemogenic test, all rats received an intravenous injection of Evan's Blue; after 30 min, 0.2 mL of each bleaching gels was injected into the subcutaneous tissue of the rats, and the results of the vascular permeability were assessed after 3 and 6h. The amount of HP released and pH of each product was also determined. Data were submitted to statistical test (<em>p</em>&lt;0.05). <strong>Results</strong>: At 3h, the PB showed higher vascular permeability than the other groups. At 6h, the PB produced similar vascular permeability than WHI, and higher than OPA and CTRL groups. The OPA group had a higher vascular permeability at 6h compared to 3h; there is no difference in other groups. The PB group had higher HP concentrations than the other groups. <strong>Conclusion</strong>: In general, the PB caused a more considerable amount of inflammatory edema and higher amount of HP released. This results suggesting that these bleaching gels cause greater aggression in soft gingival tissues that eventually ends up in contact with bleaching products</p><p> </p><p class="CorpoA"><strong>Keywords</strong><strong></strong></p><p class="CorpoA">Tooth bleaching; Carbamide peroxide; Hydrogen peroxide; Capillary permeability.</p>

scholarly journals Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products

2020 ◽  
Vol 23 (2) ◽  
Author(s):  
Sibelli Olivieri Parreiras ◽  
Michael Willian Favoreto ◽  
Gustavo Pereira Cruz ◽  
Anderson Gomes ◽  
Christiane Philippini Ferreira Borges ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Dental Enamel ◽  
Pairwise Comparison ◽  
Spectrophotometric Analysis ◽  
Tooth Bleaching ◽  
Acetate Buffer Solution ◽  
Pulp Chamber ◽  
Carbamide Peroxide ◽  
Buffer Solution ◽  
Significant Difference

Objective: This study’s aim was to quantify the hydrogen peroxide (HP) penetration into the pulp chamber of teeth submitted to different protocols of bleaching. Material and Methods: Ninety premolars were randomly divided into nine groups according to the bleaching agent protocol (n = 10): control (no bleaching), carbamide peroxide 10% [10% CP], carbamide peroxide 16% [16% CP], carbamide peroxide 22% [22% CP], hydrogen peroxide 4% [4% HP], hydrogen peroxide 6% [6% HP], hydrogen peroxide 7.5% [7.5% HP], hydrogen peroxide 10% [10% HP] and hydrogen peroxide 35% [35% HP]. The penetration of HP was measured via spectrophotometric analysis of the acetate buffer solution from the pulp chamber. The absorbance of the resulting solution was determined in a spectrophotometer and converted into equivalent concentration of HP (μg/ mL). To analyze the concentration of HP, the titration of bleaching agents with potassium permanganate was used. Data were subjected to ANOVA and Tukey’s test for pairwise comparison (α = 0.05). Results: Higher concentration of HP in the pulp chamber was found in the HP 35% group (p < 0.0001). No significant difference between at-home protocols were observed (p = 0.64). Titration values showed that the concentration of the products was similar to that claimed by the manufacturer. Conclusion: It follows that the amount of HP that reaches the pulp chamber is not proportional to the concentration of whitening gels, but depends on the application time recommended by the manufacturers.KEYWORDSAt-home bleaching; Dental enamel permeability; Inoffice bleaching; Tooth bleaching. 

Sign in / Sign up

Export Citation Format

Share Document