scholarly journals Blue Covarine Toothpaste versus Office Whitening: Which is the Most Effective on Stained Teeth?

2021 ◽  
Vol 22 (3) ◽  
pp. 216-222
Author(s):  
Andrea Abi Rached Dantas ◽  
Vinicius Perassoli Menegazzo ◽  
Aryvelto Miranda Silva ◽  
João Felipe Besegato ◽  
Janaina Freitas Bortolatto ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Red Wine ◽  
Color Change ◽  
Calculated Data ◽  
Tooth Bleaching ◽  
Viable Option ◽  
Tooth Whitening ◽  
Mixed Anova ◽  
Whitening Agent ◽  
Bonferroni Test

AbstractAlternative whitening strategies to hydrogen peroxide have been proposed, such as the inclusion of abrasive and/or pigmented particles in the toothpaste. This study compared the whitening effectiveness of a toothpaste containing Blue Covarine (BC) vs. an in-office whitening treatment using 35% hydrogen peroxide (HP) in teeth stained. Bovine incisors blocks (6.0x6.0x2.0 mm) were stained with green tea (GT), orange soda (OS), or red wine (RW). The samples were randomly assigned into 8 groups (n=15), according to the type of staining and whitening treatment: G1 – no staining, BC (Control); G2 – no staining, HP (Control); G3 – GT, BC; G4 – GT, HP; G5 – OS, BC; G6 – OS, HP; G7 – RW, BC; G8 – RW, HP. Color change (ΔE), luminosity (L*), green-red axis (a*), and blue-yellow axis (b*) were recorded with spectroscopy at T0 – baseline, T1 – immediately after toothbrushing or in-office tooth whitening, and T2 – after the conclusion of the treatments. The whiteness index for dentistry (WID) was calculated. Data were analyzed by two-way repeated measured mixed ANOVA and Bonferroni test (α=0.05). HP showed a better whitening performance (ΔE) (p ≤ 0.042). Otherwise, no effects of the whitening agent were observed (p = 1.000). Data from ΔL, Δa, and Δb showed statistically significant differences for experimental groups (p < 0.001). In the WID analysis, BC and HP had similar effects within control and RW groups. In conclusion, blue covarine toothpaste may be a viable option for extrinsically stained teeth. However, for severe staining, HP-based whitening agents proved to be the most effective treatment strategy.Keywords: Tooth Bleaching. Dentifrices. Color. ResumoEstratégias de clareamento alternativas ao peróxido de hidrogênio têm sido propostas, como a inclusão de partículas abrasivas e/ou pigmentadas nos cremes dentais. Este estudo comparou a eficácia clareadora de um creme dental contendo Blue Covarine (BC) com um tratamento de clareamento em consultório com peróxido de hidrogênio a 35% (HP) em dentes pigmentados. Blocos de incisivos bovinos (6,0x6,0x2,0 mm) foram pigmentados com chá verde (GT), refrigerante de laranja (OS) ou vinho tinto (RW). As amostras foram distribuídas aleatoriamente em 8 grupos (n = 15), de acordo com o tipo de pigmento e tratamento clareador: G1 - sem coloração, CB (Controle); G2 - sem coloração, HP (Controle); G3 - GT, BC; G4 - GT, HP; G5 - OS, BC; G6 - SO, HP; G7 - RW, BC; G8 - RW, HP. Mudança de cor (ΔE), luminosidade (L *), eixo verde-vermelho (a*) e eixo azul-amarelo (b*) foram registrados com espectroscopia em T0 - baseline, T1 - imediatamente após a escovação ou clareamento dental em consultório, e T2 - após a conclusão dos tratamentos. O índice de brancura para odontologia (WID) foi calculado. Os dados foram analisados por ANOVA mista de duas vidas para medidas repetidas e teste de Bonferroni (α = 0,05). HP apresentou melhor desempenho de clareamento (ΔE) (p ≤ 0,042). Os dados de ΔL, Δa e Δb mostraram diferenças estatisticamente significativas para os grupos experimentais (p <0,001). Na análise WID, BC e HP tiveram efeitos semelhantes nos grupos controle e RW. Em conclusão, o creme dental covarine azul pode ser uma opção viável para dentes com coloração extrínseca. No entanto, para manchas graves, os agentes de clareamento à base de HP provaram ser a estratégia de tratamento mais eficaz.Palavras-chave: Clareamento Dental. Dentifrícios. Cor.

Effect of Tooth-Whitening Procedures on Stained Composite Resins

2019 ◽  
Vol 44 (1) ◽  
pp. 65-75 ◽  
Author(s):  
JW Reinhardt ◽  
MM Balbierz ◽  
CM Schultz ◽  
B Simetich ◽  
MW Beatty
Keyword(s):  
Red Wine ◽  
Composite Resin ◽  
Color Change ◽  
Composite Resins ◽  
The Other ◽  
Time Interval ◽  
Distilled Water ◽  
Water Control ◽  
Tooth Whitening ◽  
Final Composite

SUMMARY In this laboratory study, a composite resin was stained to a visibly discernible level using both coffee and red wine over 14 days (change was considered clinically noticeable and significant when ΔEab*≥2.7). Color change was measured at one, three, seven, and 14 days of staining. Although the nature of color change was different for the two staining solutions, the overall degree of staining (ΔEab*) rendered by either coffee or wine at each time interval was not significantly different (p≥0.05). Four whitening protocols were applied to stained composites. Treatment included applications of distilled water (control), Crest Pro-Health [HD] toothpaste, Crest Whitestrips, Opalescence PF bleach (15%), and application of a fine pumice polishing (Preppies). HD toothpaste and Whitestrips were applied daily for 21 days, Opalescence was applied daily for 10 days, and polishing was applied once. Each of the whitening products, applied in a manner simulating at-home or in-office treatment, was effective in producing color improvements (lightening) over controls (p&lt;0.05), but none of the four treatments produced lightening that was significantly different from the other treatments (p≥0.05). A comparison of final composite color with that measured at baseline showed that Opalescence returned composite color to an acceptable level following exposure to both staining solutions (ΔEab*&lt;2.7), Whitestrips returned color close to baseline for wine-stained composites, and HD paste and polishing permitted residual stain to remain (ΔEab*≥2.7).

scholarly journals In vitro tooth whitening effectiveness of whitening mouth rinses

2020 ◽  
Vol 19 ◽  
pp. e206779
Author(s):  
Ana Paula Morona Rodrigues ◽  
Mariele Cristina Klein ◽  
Mauro Antonio Dall Agnol ◽  
Sinval Adalberto Rodrigues-Junior
Keyword(s):  
Hydrogen Peroxide ◽  
Color Change ◽  
Artificial Saliva ◽  
Acrylic Resin ◽  
Mouth Rinse ◽  
Tooth Whitening ◽  
Mouth Rinses ◽  
Immersion Period ◽  
Over Time

Regardless of the extensive availability of mouth rinses that claim to whiten teeth, evidence of achievement of such effect is still missing. Aim: Therefore, this study assessed in vitro the whitening effectiveness of whitening mouth rinses. Methods: Sixty intact bovine incisors were embedded in acrylic resin and had their buccal surface flattened and polished. Then, the specimens were randomly allocated to three conventional (Colgate Plax, Cepacol and Listerine Cool Mint) and three whitening mouth rinse groups (Colgate Luminous White, Cepacol Whitening and Listerine Whitening Extreme) (n=10). Following, the specimens were immersed twice a day in the mouth rinses for one minute for 28 days. In between each immersion period, the specimens remained in artificial saliva at 37oC. Color was measured at baseline, 7, 14, 21, and 28 days using a portable spectrophotometer (Easyshade, Vita Zahnfabrik, Germany) with a 6 mm of diameter probe. Color change was analyzed considering the parameters of ∆L*, ∆a*, ∆b* and, ultimately, ∆E*. The whitening efficacy of the mouth rinses was analyzed using the Whiteness Index for Dentistry (WID). Data of ∆s was analyzed using two-way ANOVA and Tukey’s test (α=0.05). Results: The type of mouth rinse affected significantly all the ∆ parameters (p<0.05). A non-whitening (conventional) mouth rinse produced the highest ΔE*, followed by the three whitening mouth rinses. The application time also affected ΔE* (p<0.05), with emphasis on the third week of treatment. Only the hydrogen peroxide-containing mouth rinse (Listerine Whitening Extreme) presented a whitening effect, with an increasing trend over time. Conclusion: Although the overall color change was not different when comparing conventional and whitening mouth rinses, the hydrogen peroxide-containing whitening mouth rinse produces an increasing whitening trend over time. Not every mouth rinse that claims to whiten teeth produces the desired effect.

scholarly journals Photobiomodulation vs. Placebo on Post-Bleaching Sensitivity and Color Change: A Split-Mouth Clinical Study

2020 ◽  
Vol 14 (1) ◽  
pp. 267-274
Author(s):  
Caroline C. de Silva ◽  
Cristiane de M. Alencar ◽  
Brennda L. F. de Paula ◽  
Fernanda F. de A. Jassé ◽  
Jesuína L. N. Araújo ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Color Change ◽  
Tooth Bleaching ◽  
Low Level Laser Therapy ◽  
Tooth Color ◽  
Pain Evaluation ◽  
Level Laser ◽  
Significant Difference ◽  
The Right ◽  
Post Hoc

Objective: This study aimed to investigate the efficiency of Photobiomodulation (PBM) with low-level LASER therapy compared to placebo in post-bleaching sensitivity and color change during a three-week office bleaching treatment. Methods: A split-mouth model was used to evaluate 21 subjects. The right and left hemi-archs were randomized to one of two groups: GP (placebo): simulated LASER application followed by tooth bleaching with 35% hydrogen peroxide; and GL: treated with PBM followed by tooth bleaching with 35% hydrogen peroxide. A four-degree modified Visual Analog Scale (VAS) was used to assess tooth sensitivity after the application of an evaporative stimulus (stimulated pain). In addition, a daily questionnaire was used to measure unstimulated pain. The color change was measured using a spectrophotometer. The Friedman and Wilcoxon tests were used to analyze data sensitivity. Color results were statistically analyzed using Analysis Of Variance (ANOVA) followed by the Tukey post-hoc test. Results: There was no significant difference between GP and GL for stimulated pain evaluation (p> 0.05). However, there was a significant difference between the groups for unstimulated pain evaluation (p≤ 0.05). In addition, ΔE data did not reveal any significant difference in tooth color between groups at any time (p> 0.05). Conclusion: PBM prevented post-bleaching sensitivity compared to placebo, based on the daily pain assessment questionnaires. PBM did not compromise the quality of bleaching treatments.

scholarly journals CLINICAL OBSERVATION OF DISCOLORING TREATMENT OF NON-VITAL TEETH BY BLEACHING

2018 ◽  
pp. 83-87
Author(s):  
O.A. Pysarenko ◽  
Yu.I. Silenko ◽  
M.V. Khrebor
Keyword(s):  
Hydrogen Peroxide ◽  
Clinical Observation ◽  
Color Change ◽  
Sodium Perborate ◽  
Tooth Crown ◽  
Carbamide Peroxide ◽  
Whitening Agent ◽  
Use Of Technology ◽  
Success Of Treatment ◽  
Methods Of Treatment

A dental cosmetic is actual for everyone. Whitening of teeth can be the method of lab treatmen. Whitening facilities which are used with this goal often contain peroxide, hydrogen, carbamide peroxide, and combinations of peroxides hydrogen with sodium perborate. The treatment of 3 patients with discoloration of non-vital teeth was done. In two cases the reason of color change was the use of paste containing resorcinol-formalin. Discoloring of root of the tooth was caused by necrotic damage of the pulp. Clinically satisfactory results were received after 1-4 visits in 1-2 days. Use of the bleaching method with further aesthetic restoration of tooth crowns allows avoiding significant weakening of the tooth crown in comparison with prosthetic methods of treatment. The main whitening agent was 30-40% hydrogen peroxide in combination with sodium perborate. The positive cosmetic results were achieved in short terms. Clear compliance with of manufacturer’s recommendations and the use of technology allow achieving success of treatment.

scholarly journals Evaluation of In-office Vital Tooth Whitening Combined with Different Concentrations of At-home Peroxides: A Randomized Double-blind Clinical Trial

2019 ◽  
Vol 13 (1) ◽  
pp. 377-382
Author(s):  
Leandro Féliz-Matos ◽  
Ninoska Abreu-Placeres ◽  
Luis Miguel Hernandez ◽  
Carlos Ruiz-Matuk ◽  
Patricia Grau-Grullón
Keyword(s):  
Clinical Trial ◽  
Hydrogen Peroxide ◽  
Color Change ◽  
Carbamide Peroxide ◽  
Tooth Whitening ◽  
Double Blind ◽  
Tooth Color ◽  
Positive Effects ◽  
Double Blind Clinical Trial ◽  
At Home

Background: The clinical evidence relate the effect of associating the in-office and at home vital tooth whitening, describing positive effects on tooth color change and reduction of dental sensitivity. Objective: The purpose of this randomized double-blind clinical trial was to evaluate the effect on the shortened application of in-office vital tooth whitening combined with different concentrations of at-home peroxides in the final tooth color change and dental sensitivity. Methods: Randomized double-blind clinical trial with 120 participants between 18-65 years, allocated in four tooth whitening treatment groups: G1= Carbamide Peroxide 10% + Hydrogen Peroxide 40%, G2= Carbamide Peroxide 15% + Hydrogen Peroxide 40%, G3= Carbamide Peroxide 20% + Hydrogen Peroxide 40%, G4= Hydrogen Peroxide 10% + Hydrogen Peroxide 40% was conducted. Tooth color was measured at baseline and dental sensitivity and tooth color change during and after treatment. Results: No statistical significant differences were found in tooth color change (superior arch p= 0.183 / inferior arch p= 0.374), and in dental sensitivity (p=0.268). Conclusion: Reducing the application time of in-office whitening, combined with in-home products was effective in improving the color. All groups resulted in identical final color change and dental sensitivity. Clinicaltrials.gov: NCT02682329 Available from: https://clinicaltrials.gov/ct2/show/NCT02682329?term=hydrogen+peroxide.

Effect of Bleaching Gel Viscosity on Tooth Whitening Efficacy and Pulp Chamber Penetration: An In Vitro Study

2018 ◽  
Vol 43 (3) ◽  
pp. 326-334 ◽  
Author(s):  
SR Kwon ◽  
FNU Pallavi ◽  
Y Shi ◽  
U Oyoyo ◽  
A Mohraz ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Rheological Properties ◽  
Color Change ◽  
Negative Control ◽  
Tooth Color ◽  
Tooth Structure ◽  
Significant Difference ◽  
Bonferroni Test ◽  
Medium Viscosity

SUMMARY Objectives: Whitening efficacy has been related to hydrogen peroxide (HP) diffusion into tooth structure. However, little information is available relating rheological properties to whitening efficacy. The purpose was to evaluate the whitening efficacy and HP penetration level of a 10% HP gel at three different viscosities and to compare them to a strip delivery system. Methods and Materials: Extracted molars (n=120) were randomly assigned into five groups (n=24/ group): NC_MED (negative control; median): medium viscosity gel without HP; LOW: 10% HP gel (low viscosity experimental gel, Ultradent Products Inc); MED: 10% HP gel (medium viscosity experimental gel, Ultradent); HIGH: 10% HP gel (high viscosity gel, Ultradent); and CWS: Crest 3D Whitestrips 1-Hour Express (Procter & Gamble). All teeth were subjected to five 60-minute whitening sessions. Instrumental color measurements were performed at baseline (T0), and 1-day after each application (T1-T5), and 1-month after whitening (T6). HP penetration was estimated with leucocrystal violet and horseradish peroxidase. A Kruskal-Wallis test and post hoc Bonferroni test were performed to assess the difference in tooth color change and HP penetration among the groups (α=0.05). Results: Hydrogen peroxide penetration levels and overall color changes at T6 were 0.24 μg/mL / 2.80; 0.48 μg/mL / 8.48; 0.44 μg/mL / 7.72; 0.35 μg/mL / 8.49; 0.36 μg/mL / 7.30 for groups NC, LOW, MED, HIGH, and CWS, respectively. There was a significant difference for HP penetration, while there was no significant difference among the four experimental groups for tooth color change. Conclusion: Rheological properties should be considered when developing new whitening formulations.

scholarly journals Influence of Whitening Gel Application Protocol on Dental Color Change

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Taciana Marco Ferraz Caneppele ◽  
Carlos Rocha Gomes Torres ◽  
Maria Filomena Rocha Lima Huhtala ◽  
Eduardo Bresciani
Keyword(s):  
Hydrogen Peroxide ◽  
Repeated Measures ◽  
Color Change ◽  
Application Time ◽  
Tooth Whitening ◽  
Repeated Measures Anova ◽  
Extended Application ◽  
Gel Ph ◽  
Final Color

Objectives.To evaluate the influence of different whitening protocols on the efficacy of 35% hydrogen peroxide (HP) tooth whitening and gel pH and concentration.Material and Methods.Eighty-four enamel/dentin discs from bovine incisors were used. The baseline color was measured with a spectrophotometer. Two sessions of in-office whitening with 35% HP were performed under different protocols: G1: 3 applications of HP (10 min each) per session; G2: 1 application of 30 min per session; G3: 1 application of 40 min per session, with no gel replenishment within session for groups 2 and 3. HP titration and pH evaluation at baseline, after 10, 30, and 40 min were also performed. The final color was measured 24 h after the 1st and 2nd whitening sessions. Data were submitted to Repeated Measures ANOVA and Tukey’s test.Results.For color evaluation, no differences were observed among groups after two sessions. HP titration showed no drop on concentration after 10, 30, or 40 min. The pH was 5.54 at baseline and 5.41 after 40 min.Conclusion.Replenishment or extended application time of in-office whitening gel does not affect gel pH and concentration, a fact that supports the similar effectiveness of whitening observed among the tested protocols.

scholarly journals Efficacy of Mouthwashes Containing Hydrogen Peroxide on Tooth Whitening

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Muhammet Karadas ◽  
Omer Hatipoglu
Keyword(s):  
Hydrogen Peroxide ◽  
Analysis Of Variance ◽  
Color Change ◽  
Artificial Saliva ◽  
Positive Control ◽  
Negative Control ◽  
Carbamide Peroxide ◽  
Tooth Whitening ◽  
Post Hoc ◽  
Over Time

The aim of this study was to analyze the efficacy of mouthwashes containing hydrogen peroxide compared with 10% carbamide peroxide (CP) gel. Fifty enamel-dentin samples were obtained from bovine incisors and then stained in a tea solution. The stained samples were randomly divided into five groups according to the whitening product applied (n=10): AS: no whitening (negative control), with the samples stored in artificial saliva; CR: Crest 3D White mouthwash; LS: Listerine Whitening mouthwash; SC: Scope White mouthwash; and OP group: 10% CP Opalescence PF (positive control). Color measurements were carried out with a spectrophotometer before staining, after staining, and on the 7th, 28th, and 56th day of the whitening period. The data were analyzed using two-way analysis of variance followed by a Tukey post hoc test. The color change (ΔE) was significantly greater in all the groups compared to that of the AS group. After 56 days, no significant differences were found among the mouthwash products with respect to color change (P>0.05). The whiteness of the teeth treated with the mouthwashes increased significantly over time. Nevertheless, the color change achieved with the mouthwashes was significantly lower than that achieved with the 10% CP at-home bleaching gel.

scholarly journals Effect of pigmenting agents on tooth enamel staining during immediate tooth whitening: an in vitro study

2020 ◽  
Vol 49 ◽  
Author(s):  
Daniela Luzimar CLAUDINO ◽  
João Victor Frazão CÂMARA ◽  
Osmar de AGOSTINHO NETO ◽  
Ericles Otávio SANTOS ◽  
Gisele Damiana da Silveira PEREIRA ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Color Change ◽  
Tooth Enamel ◽  
Soft Drink ◽  
In Vitro Study ◽  
Tooth Bleaching ◽  
Control Group ◽  
Water Control ◽  
Mate Tea

Abstract Introduction Considering the increased search for esthetic procedures, questions emerge about the maintenance and regression of color, especially regarding the need to restrict dark foods during bleaching procedures or their influence on the stability and effectiveness of the treatment. Objective To assess the influence of staining agents on tooth enamel during immediate bleaching treatment with 35% hydrogen peroxide. Material and method Sixty bovine teeth were divided into six groups (G) (n=10): G1: distilled water (control); G2: coffee; G3: cola soft drink; G4: wine; G5: mate tea; and G6: industrialized açaí. The samples were subjected to immediate bleaching using 35% hydrogen peroxide for 21 days (three applications of 15 minutes per session, every seven days) and pigment immersion between each session for 15 minutes. The color was assessed before starting bleaching and after 21 days, using a spectrophotometer. The data obtained were subjected to one-way ANOVA and heteroscedasticity analysis by the Welch and Brown-Forsythe tests. The Tamhane test was used for group comparison. Result The color change was visible to the naked eye, considering the mean ΔE in all groups tested was higher than 3.7. However, there was no statistical difference between the control group and the groups assessed. Conclusion The contact of staining agents on bovine tooth enamel did not affect the final result of the immediate tooth bleaching.

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