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Centenaro GG, Favoreto MW, Cordeiro DCF, Gumy FN, Machado AG, Cochinski GD, Reis A, Loguercio AD. Effect of the type of application tip for 35% hydrogen peroxide on bleaching efficacy and tooth sensitivity: A randomized clinical trial. J ESTHET RESTOR DENT 2024; 36:1029-1037. [PMID: 38475979 DOI: 10.1111/jerd.13219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024]
Abstract
OBJECTIVES Evaluate the bleaching efficacy (BE) and tooth sensitivity (TS) of in-office bleaching using different application tips. METHODS Forty-eight participants were selected (split-mouth), one to receive bleaching with an attached brush tip and one with a conventional tip. The procedure was performed with Whiteness Automixx Plus 35%. The BE was evaluated at the beginning, weekly, one and 12 months post-bleaching with a Vita Easyshade spectrophotometer (ΔE*ab, ΔE00, and WID) and with Vita classical A1-D4 and Vita Bleachedguide shade guides units (ΔSGU). Absolute risk and intensity of TS were recorded using the Visual Analogue Scale. The equivalence of BE was analyzed using the two one-sided t-tests for paired samples. The absolute risk of TS was evaluated using the McNemar test, and the TS intensity was measured with the paired t test (α = 0.05). RESULTS The equivalence of BE was observed for both groups in all color evaluations (p > 0.05). A lower absolute risk and intensity of TS were observed for the attached brush tip when compared with the conventional tip (p < 0.003 and p < 0.0001). CONCLUSION Using an attached brush tip showed the same BE as a conventional tip. However, for the attached brush tip, there was a reduction in TS. CLINICAL SIGNIFICANCE The applicator-attached brush tip is recommended for in-office dental bleaching, because of the possible reduction in risk and intensity of TS.
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Affiliation(s)
- Gabrielle G Centenaro
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Michael W Favoreto
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Deisy C F Cordeiro
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Fernanda N Gumy
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Amanda G Machado
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Gabriel D Cochinski
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Alessandra Reis
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Alessandro D Loguercio
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
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Krayem E, Banerjee A, Milly H. Evaluating the efficiency of two different over-the-counter tooth whitening systems: a randomised controlled clinical trial. BDJ Open 2024; 10:41. [PMID: 38821934 PMCID: PMC11143285 DOI: 10.1038/s41405-024-00227-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/16/2024] [Accepted: 05/16/2024] [Indexed: 06/02/2024] Open
Abstract
OBJECTIVES To compare whitening efficiency and tooth sensitivity (TS) of two different over the counter (OTC) whitening systems in comparison to conventional at-home bleaching using 20% carbamide peroxide. MATERIALS AND METHODS A randomised controlled clinical trial was conducted with three parallel groups (n = 13): (A) at-home whitening using 20% carbamide peroxide (20% CP), (B) OTC ready-to-use gel trays and (C) OTC-paint on gel. Clinical colour change values (ΔE) were measured using spectrophotometry at T0: baseline, T1: 7-day and T2: 14-day from whitening start, T3: 2 weeks and T4: 6 months after whitening end. TS was recorded using a visual analogue scale (VAS). ΔE and TS values were statistically analysed. The level of significance for all tests was 5%. RESULTS Significant differences in ∆E values were recorded between the experimental groups. ∆E values were significantly higher in the 20% CP conventional at-home whitening group. TS measurements were significantly higher in the 20% CP whitening group (p < 0.05). CONCLUSION Conventional at-home whitening revealed significantly improved colour change when compared to the OTC-paint on gel and OTC ready-to-use gel tray whitening systems. There was a significant colour relapse in OTC systems. CLINICAL RELEVANCE The use of tested OTC systems is not recommended as they are not effective in a clear and prolonged improved shade change. Conventional at-home whitening using 20% CP showed higher whitening efficiency and colour stability. This trial was registered with a International Standard Randomised Controlled Trial Number (ISRCTN23096480), Registration date: 12/04/2023.
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Affiliation(s)
- Eenass Krayem
- Faculty of Dental Medicine, Damascus University, Damascus, Syria
| | - Avijit Banerjee
- Centre of Oral Clinical Translational Sciences/Dept. of Conservative & MI Dentistry, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, Guy's Dental Hospital, London, SE1 9RT, UK
| | - Hussam Milly
- Faculty of Dental Medicine, Damascus University, Damascus, Syria.
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Barbosa LMM, Carneiro TS, Favoreto MW, Borges CPF, Reis A, Loguercio AD, Meireles SS. Effect of whitening toothpastes with different hydrogen peroxide concentrations: Penetration into the pulp chamber and color change. J Dent 2024; 144:104951. [PMID: 38508441 DOI: 10.1016/j.jdent.2024.104951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024] Open
Abstract
OBJECTIVES This study evaluated the efficacy of simulated brushing with toothpastes containing different concentrations of hydrogen peroxide (HP) in pulp chamber penetration and color change. Also, physical-chemical properties (concentration, pH and viscosity) were evaluated. METHODS Forty-nine premolars were divided into seven groups (n = 7): untreated (control); whitening gel (White Class 6 %, 6 %BG) with one 90 min application (6 %BG 90 min) and 14 applications of 90 min (6 %BG 14×90 min); toothpastes (Colgate Luminous White Glow 3 %, 3 %TP; Crest 3D White Brilliance 4 %, 4 %TP; Colgate Optic White Pro-Series 5 %, 5 %TP) and 6 %BG toothbrushing for 14 applications of 90 s. HP penetration into the pulp chamber was measured through UV-Vis spectrophotometry and color change with a spectrophotometer (ΔEab, ΔE00, and ΔWID). Initial concentration, pH, and viscosity were measured through Titration, Digital pH-meter, and Rheometer, respectively. Statistical analysis used one-way ANOVA and Tukey's test (α = 0.05). RESULTS 6 %BG (14×90 min) and 4 %TP groups showed acidic pH and higher concentrations of HP in the pulp chamber compared to the other groups (p < 0.05). On the other side, 3 %TP and 5 %TP groups showed alkaline pH, higher viscosity between the toothpastes and lower HP penetration (p < 0.05). The 6 %BG AH (14×90 min) group exhibited the most significant color change (ΔEab, ΔE00, and ΔWID) (p < 0.05). CONCLUSIONS Brushing with whitening toothpaste with an acidic pH leads to greater HP penetration into pulp chamber; but, even when a high concentrated HP whitening toothpaste was used, a lower whitening effect was observed when compared to a two-week at-home bleaching. CLINICAL SIGNIFICANCE Whitening toothpastes containing up to 5 % HP produced lower whitening effect than two-week at-home bleaching. Additionally, HP was detected within the pulp chamber which can potentially impact in tooth sensitivity.
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Affiliation(s)
- Laryssa M M Barbosa
- Department of Restorative Dentistry, Federal University of Paraíba, João Pessoa, Paraíba, Brazil
| | - Taynara S Carneiro
- Department of Restorative Dentistry, State University of Ponta Grossa, Uvaranas, Ponta Grossa, Paraná, Brazil
| | - Michael W Favoreto
- Department of Restorative Dentistry, State University of Ponta Grossa, Uvaranas, Ponta Grossa, Paraná, Brazil
| | - Christiane P F Borges
- Department of Chemistry, State University of Ponta Grossa, Uvaranas, Ponta Grossa, Paraná, Brazil
| | - Alessandra Reis
- Department of Restorative Dentistry, State University of Ponta Grossa, Uvaranas, Ponta Grossa, Paraná, Brazil
| | - Alessandro D Loguercio
- Department of Restorative Dentistry, State University of Ponta Grossa, Uvaranas, Ponta Grossa, Paraná, Brazil.
| | - Sônia S Meireles
- Department of Restorative Dentistry, Federal University of Paraíba, João Pessoa, Paraíba, Brazil
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Peruchi V, Ribeiro RADO, Mendes Soares IP, Oliveira Fernandes LD, de Oliveira JR, Pires MLBA, Hebling J, Soares DG, de Souza Costa CA. Influence of coating dental enamel with a TiF 4-loaded polymeric primer on the adverse effects caused by a bleaching gel with 35% H 2O 2. J Mech Behav Biomed Mater 2024; 153:106497. [PMID: 38458078 DOI: 10.1016/j.jmbbm.2024.106497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/25/2024] [Accepted: 03/01/2024] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To evaluate whether coating enamel with a polymeric primer (PPol) containing titanium tetrafluoride (TiF4) before applying a bleaching gel with 35% H2O2 (35% BG) increases esthetic efficacy, prevents changes in morphology and hardness of enamel, as well as reduces the cytotoxicity from conventional in-office bleaching. MATERIALS AND METHODS Standardized enamel/dentin discs were stained and bleached for 45 min (one session) with 35% BG. Groups 2TiF4, 6TiF4, and 10TiF4 received the gel on the enamel previously coated with PPol containing 2 mg/mL, 6 mg/mL, or 10 mg/mL, respectively. No treatment or application of 35% BG directly on enamel were used as negative control (NC), and positive control (PC), respectively. UV-reflectance spectrophotometry (CIE L*a*b* system, ΔE00, and ΔWI, n = 8) determined the bleaching efficacy of treatments. Enamel microhardness (Knoop, n = 8), morphology, and composition (SEM/EDS, n = 4) were also evaluated. Enamel/dentin discs adapted to artificial pulp chambers (n = 8) were used for trans-amelodentinal cytotoxicity tests. Following the treatments, the extracts (culture medium + bleaching gel components diffused through the discs) were collected and applied to odontoblast-like MDPC-23 cells, which were assessed concerning their viability (alamarBlue, n = 8; Live/Dead, n = 4), oxidative stress (n = 8), and morphology (SEM). The amount of H2O2 in the extracts was also determined (leuco crystal violet/peroxidase, n = 8). The numerical data underwent one-criterion variance analysis (one-way ANOVA), followed by Tukey's test, at a 5% significance level. RESULTS Regarding the ΔE00, no difference was observed among groups 2TiF4, 6TiF4, and PC (p > 0.05). The ΔWI was similar between groups 2TiF4 and PC (p > 0.05). The ΔWI of group 6TiF4 was superior to PC (p < 0.05), and group 10TiF4 achieved the highest ΔE00 and ΔWI values (p < 0.05). Besides limiting enamel microstructural changes compared to PC, group 10TiF4 significantly increased the hardness of this mineralized dental tissue. The highest cellular viability occurred in 10TiF4 compared to the other bleached groups (p < 0.05). Trans-amelodentinal H2O2 diffusion decreased in groups 2TiF4, 6TiF4, and 10TiF4 in comparison with PC (p < 0.05). CONCLUSION Coating enamel with a PPol containing TiF4 before applying a 35% BG may increase enamel microhardness and esthetic efficacy and reduce the trans-amelodentinal cytotoxicity of conventional in-office tooth bleaching. The PPol containing 10 mg/mL of TiF4 promoted the best outcomes.
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Affiliation(s)
- Victória Peruchi
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | | | - Igor Paulino Mendes Soares
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Lídia de Oliveira Fernandes
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Juliana Rios de Oliveira
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | | | - Josimeri Hebling
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Diana Gabriela Soares
- Department of Operative Dentistry, Endodontics and Dental Materials, School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil.
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de Oliveira Ribeiro RA, Martins BV, Dias MF, Peruchi V, Soares IPM, Anselmi C, Hebling J, de Souza Costa CA. Catalysis-based approaches with biopolymers and violet LED to improve in-office dental bleaching. Lasers Med Sci 2024; 39:21. [PMID: 38165503 DOI: 10.1007/s10103-023-03962-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
This in vitro experimental investigation aimed to evaluate the impact of the combined application of a nanofiber scaffold (NS), a polymeric catalyst primer (PCP) containing 10 mg/mL of heme peroxidase enzyme, and violet LED (LEDv) on the esthetic efficacy (EE), trans-amelodentinal cytotoxicity (TC), and procedural duration of conventional in-office bleaching therapy. To achieve this, 96 standardized enamel/dentin discs were individually placed in artificial pulp chambers. A 35% hydrogen peroxide (H2O2) bleaching gel was administered for 45, 30, or 15 min to the enamel, either previously coated with NS + PCP or left uncoated, followed by irradiation with LEDv for 15 min or no irradiation. The established groups were as follows: G1, negative control (no treatment); G2, 35% H2O2/45 min; G3, NS + PCP + LEDv; G4, NS + PCP + 35%H2O2/45 min + LEDv; G5, NS + PCP + 35%H2O2/30 min + LEDv; and G6, NS + PCP + 35%H2O2/15 min + LEDv. Extracts (culture medium + gel components diffused through the discs) were collected and applied to odontoblast-like MDPC-23 cells. EE (ΔE00 and ΔWI) and TC were assessed using ANOVA/Tukey analysis (p < 0.05). The EE analysis revealed no statistical differences between G6 and G2 (p > 0.05). Cells in G6 exhibited higher viability and lower oxidative stress compared to other bleached groups (p < 0.05). In conclusion, employing NS + PCP + LEDv to catalyze a 35%H2O2 bleaching gel applied for 15 min to the enamel resulted in successful esthetic improvements and reduced the cytotoxicity commonly linked with traditional in-office bleaching procedures.
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Affiliation(s)
| | - Beatriz Voss Martins
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Marlon Ferreira Dias
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Victória Peruchi
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Igor Paulino Mendes Soares
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Caroline Anselmi
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Josimeri Hebling
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, School of Dentistry, Araraquara, São Paulo State University (UNESP), Rua Humaitá, 1680, Araraquara, São Paulo, 14801-903, Brazil.
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Tadin A, Galic S, Gavic L. Assessment of Color Change, Esthetic Perception, Treatment Satisfaction, and Side Effects Following the Use of Over-the-Counter Whitening Products. Acta Stomatol Croat 2023; 57:300-315. [PMID: 38283316 PMCID: PMC10812912 DOI: 10.15644/asc57/4/2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/12/2023] [Indexed: 01/30/2024] Open
Abstract
Objectives The objective of this study was to investigate the efficacy of tooth whitening and the effects on satisfaction with whitening treatment and esthetic self-perception of over-the-counter tooth whitening products. Materials and methods Fifty-six participants were randomly allocated to three groups based on the whitening product they used (toothpaste, pencil, or a combination of both). In this prospective study, alterations in tooth color were assessed using a spectrophotometer at three distinct time intervals (initial measurement, seven days, and 14 days after commencing the use of the whitening product). Simultaneously, the respondents were given the PIDAQ questionnaire to complete. Patient satisfaction with treatment characteristics (5-point Likert scale), and perception of side effects were assessed at the end of the study. Results Participants who used the whitening pen either alone or in combination with whitening toothpaste showed significant improvements in tooth color and whiteness index at seven and 14 days compared to those who used whitening toothpaste alone (p≤0.001). No significant differences were found between products in overall satisfaction with treatment, perception of final tooth color, and treatment comfort. Furthermore, with the exception of the psychological influence factor after 14 days (p≤0.001), there were no significant differences in the PIDAQ questionnaire scores between the whitening products at the different time points. However, many respondents (16.6%) reported oral mucosal sensitivity and a higher percentage (27.8%) reported tooth sensitivity during whitening pen application. Conclusion The combination of whitening toothpaste and whitening pen, as well as the whitening pen alone, showed effective objective color change results, but home whitening procedures did not significantly affect participants' self-perceived satisfaction or psychosocial outcomes depending on the product used.
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Affiliation(s)
- Antonija Tadin
- Department of Restorative Dental Medicine and Endodontics, Study of Dental Medicine, University of Split School of Medicine, 21000 Split, Croatia
- Department of Maxillofacial Surgery, Clinical Hospital Centre Split, 21000 Split, Croatia
| | - Sara Galic
- Private dental office, 20350 Metkovic, Croatia
| | - Lidia Gavic
- Department of Restorative Dental Medicine and Endodontics, Study of Dental Medicine, University of Split School of Medicine, 21000 Split, Croatia
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Ribeiro EP, Emídio AG, Zanin GT, Melo E Silva VFF, Lopes MB, Guiraldo RD, Berger SB. Dental aesthetic perception of patients submitted to activated charcoal-based bleaching agents: A randomized clinical trial. J Dent 2023; 139:104744. [PMID: 37852572 DOI: 10.1016/j.jdent.2023.104744] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/20/2023] Open
Abstract
OBJECTIVE To evaluate the effects of activated charcoal-based products used in two presentation forms (powder or toothpaste), compared to 10 % carbamide peroxide and conventional toothpaste on aesthetic perception and psychosocial impact before and after treatment. METHODS Fifty-six participants were divided into 4 experimental groups (n = 14). Activated charcoal-based powder (PW); Activated charcoal-based dentifrice (AC); Conventional fluoride toothpaste (CD) and 10 % carbamide peroxide (CP). All products were used for 14 days. Psychosocial impact on dental esthetics (PIDAQ), oral health impact profile (OHIP- Esthetics) and orofacial esthetics scale (OES) questionnaires were applied before and after treatment. Descriptive and exploratory data analyses were performed and analyzed using linear mixed models for repeated measures over time considering significance level of α = 0.05. RESULTS For PIDAQ, the CP group showed significant decrease in psychological impact, aesthetic perception domains and overall score, while in the PW group, there was only a significant decrease in the psychological impact domain. Decrease in OHIP was observed for the functional limitation domain scores for treatments with CP and PW, in the psychological discomfort domain, decrease was observed for all groups, while for the OES questionnaire, significant increase in the color domain was observed for the CP group. CONCLUSION Activated charcoal-based products showed lower scores in all questionnaires when compared with carbamide peroxide; thus, charcoal-based products promoted lower impact on quality of life and aesthetic perception. CLINICAL RELEVANCE In this randomized clinical trial, charcoal-based OTC products had inferior quality of life and aesthetic perception results compared to conventional carbamide peroxide bleaching.
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Affiliation(s)
- Edgar Pedreiro Ribeiro
- Department of Restorative Dentistry, University of North Parana, Rua Marselha, 183, Jd. Piza, Londrina, PR 86.041-140, Brazil; Department of Restorative Dentistry, University Anhanguera/Uniderp, Campo Grande, MS, Brazil
| | - Andrey Gonçalves Emídio
- Department of Restorative Dentistry, University of North Parana, Rua Marselha, 183, Jd. Piza, Londrina, PR 86.041-140, Brazil
| | - Gabriela Torres Zanin
- Department of Restorative Dentistry, University Anhanguera/Uniderp, Campo Grande, MS, Brazil
| | | | - Murilo Baena Lopes
- Department of Restorative Dentistry, University of North Parana, Rua Marselha, 183, Jd. Piza, Londrina, PR 86.041-140, Brazil; Department of Restorative Dentistry, University Anhanguera/Uniderp, Campo Grande, MS, Brazil
| | - Ricardo Danil Guiraldo
- Department of Restorative Dentistry, University of North Parana, Rua Marselha, 183, Jd. Piza, Londrina, PR 86.041-140, Brazil; Department of Restorative Dentistry, University Anhanguera/Uniderp, Campo Grande, MS, Brazil
| | - Sandrine Bittencourt Berger
- Department of Restorative Dentistry, University of North Parana, Rua Marselha, 183, Jd. Piza, Londrina, PR 86.041-140, Brazil; Department of Restorative Dentistry, University Anhanguera/Uniderp, Campo Grande, MS, Brazil.
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Takamizawa T, Aoki R, Saegusa M, Hirokane E, Shoji M, Yokoyama M, Kamimoto A, Miyazaki M. Whitening efficacy and tooth sensitivity in a combined in-office and at-home whitening protocol: A randomized controlled clinical trial. J ESTHET RESTOR DENT 2023; 35:821-833. [PMID: 36883730 DOI: 10.1111/jerd.13033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/09/2023] [Accepted: 02/25/2023] [Indexed: 03/09/2023]
Abstract
OBJECTIVE This controlled randomized clinical trial determined the whitening efficacy and the intensity and absolute risk of tooth sensitivity in dual whitening when prefilled at-home whitening trays were used between in-office whitening intervals. MATERIALS AND METHODS An in-office whitening agent containing 35% hydrogen peroxide was used. A prefilled tray with a whitening agent containing 6% hydrogen peroxide was used for at-home whitening. Sixty-six subjects were randomly assigned to three groups. Group I: at-home whitening was performed 10 times between the in-office whitening treatments. Group II: at-home whitening was performed five times between the in-office whitening treatments. Group III: only in-office whitening was performed. The tooth color changes were evaluated using a spectrophotometer. A visual analog scale was used to express the pain intensity. RESULTS All the groups showed increased ΔE*ab, ΔE00 , and ΔWID with increased whitening sessions. Group I at the 3rd whitening session showed significantly higher ΔE*ab, ΔE00 , and ΔWID than group III. Tooth sensitivity showed higher values up to 24 h after whitening. CONCLUSIONS Although dual whitening with the prefilled tray and in-office whitening had higher whitening ability than in-office whitening alone, the intensity and absolute risk of tooth sensitivity was similar. CLINICAL RELEVANCE The dual whitening might produce faster and stronger whitening effects than in-office whitening alone.
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Affiliation(s)
- Toshiki Takamizawa
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Ryota Aoki
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Makoto Saegusa
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Eizo Hirokane
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Mone Shoji
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Munenori Yokoyama
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Atsushi Kamimoto
- Department of Comprehensive Dentistry and Clinical Education, Nihon University School of Dentistry, Tokyo, Japan
| | - Masashi Miyazaki
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
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Dias S, Casqueiro L, Pereira R, Silveira J, Mata A, Marques D. Hydrogen Peroxide Diffusion through Dental Tissues-In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5552. [PMID: 37629843 PMCID: PMC10456627 DOI: 10.3390/ma16165552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023]
Abstract
Whitening products commonly utilize hydrogen peroxide (HP) as an active principle, which can penetrate dental tissues with potential side effects due to its low molecular weight. This study aimed to evaluate the HP diffusion of two in-office whitening products, namely 6% VivaStyle Paint On Plus (VS) and Opalescence Boost 40% (OP), in different tooth types. Additionally, the influence of the area of exposure, dental tissue thickness and pulp chamber volume was assessed. Each group consisted of eighteen intact anterior (A), premolar (PM) and molar (M) human teeth, and a positive pulpal pressure model was employed. The samples were analyzed using spectrophotometry, and results were expressed as the mean and 95% confidence interval. Statistical tests and linear regression models were appropriately applied at α = 5%. The total HP (µg) retrieved was as follows: VS-A, 1.333 [1.214, 1.452]; OP-A, 1.538 [1.457, 1.620]; VS-PM, 1.208 [1.123, 1.291]; OP-PM, 3.628 [3.401, 3.855]; VS-M, 2.560 [2.297, 2.823]; and OP-M, 4.197 [3.997, 4.396], with statistically significant differences in diffusion kinetics between whitening products for PM and M. Several HP concentrations attained a minimum cytotoxicity value of 2.22 µg/mL. The regression model shows that OP exposed the pulp chamber to 1.421 µg of HP more than that of VS. Different whitening products can cause cytotoxic HP concentrations in the pulp chamber, with a higher risk observed in molars.
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Affiliation(s)
- Susana Dias
- Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal; (S.D.); (L.C.); (R.P.); (J.S.); (A.M.)
| | - Leonor Casqueiro
- Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal; (S.D.); (L.C.); (R.P.); (J.S.); (A.M.)
| | - Ruben Pereira
- Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal; (S.D.); (L.C.); (R.P.); (J.S.); (A.M.)
| | - João Silveira
- Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal; (S.D.); (L.C.); (R.P.); (J.S.); (A.M.)
- LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal
| | - António Mata
- Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal; (S.D.); (L.C.); (R.P.); (J.S.); (A.M.)
- LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal
| | - Duarte Marques
- Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal; (S.D.); (L.C.); (R.P.); (J.S.); (A.M.)
- LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal
- Postgraduate Programme in Prosthodontics, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal
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Salem H, Kamel N, Hassan S, Elhefnawy S. Effect of application of turmeric extract powder solution on the color changes of non-vital teeth: An in-vitro study. J Int Oral Health 2022. [DOI: 10.4103/jioh.jioh_134_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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