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Sugimura R, Takamizawa T, Aoki R, Muto R, Hirokane E, Kurokawa H, Kitahara N, Miyazaki M. Influence of in-office whitening on the color matching and surface characteristics of single-shade resin composites. J ESTHET RESTOR DENT 2024. [PMID: 39003761 DOI: 10.1111/jerd.13279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 06/16/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024]
Abstract
OBJECTIVE The color matching of single-shade resin composites after in-office whitening was investigated. MATERIALS AND METHODS Four single-shade resin composites were used. A total of 35% hydrogen peroxide was used as the whitening agent. The resin composite was placed in a cavity of an artificially discolored bovine tooth. The color differences between the restoration and surrounding enamel before and after whitening were determined based on ΔE*ab, ΔE00, and ΔWID. The color stability, surface roughness (Sa), and surface gloss (GU) of the resin composite alone were also evaluated. Statistical analyses were performed using repeated-measures analysis of variance with the Tukey-Kramer test. RESULTS Based on the 50:50% of perceptibility and acceptability thresholds of ΔE*ab and ΔE00, none of the resin composite restorations were clinically acceptable before or after whitening. Regarding ΔWID, although all resin composites showed "acceptable match" in the baseline, they showed "mismatch" after the third session of whitening. Most of the resin composites alone were stable in color against whitening. CONCLUSIONS Although the single-shade resin composites failed to achieve the expected color matching on discolored teeth either before or after the whitening, the impact of the whitening on the color of the resin composite alone may be negligible.
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Affiliation(s)
- Runa Sugimura
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - 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
| | - Rei Muto
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Eizo Hirokane
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Hiroyasu Kurokawa
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Nobuya Kitahara
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
- Team Tokyo Members Clinic
| | - Masashi Miyazaki
- Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan
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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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A Digital Process for Manufacturing Customized Trays for Dental-Whitening Treatments. Processes (Basel) 2022. [DOI: 10.3390/pr10071232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This study presents an alternative process for designing and manufacturing customized trays for dental-whitening treatments. The process is based on a digitized approach consisting of three main stages: design of a reference model, its manufacturing by AM, and thermoforming of the tray. The aim of the study was to develop a high-performance tray, able to guarantee comfort, safety, and efficacy for whitening treatments. To evaluate the patient’s experience, some tests under real operating conditions were performed. Twenty people carried out a nighttime treatment of 14 days. Each patient was asked to assess the overall level of satisfaction and the comfort of the tray and its ability to retain the gel. Tooth whitening was also determined according to the VITAPAN scale. All patients involved in the study were satisfied and provided positive feedback about comfort and tightness of the tray. At the end of the treatment, 15 out of 20 patients achieved shade A1 on the VITAPAN scale. The mean improvement in color shades was about 7. These results confirmed the great potential of the proposed dental tray. Its use was proven to guarantee a high level of quality, flexibility, and customization of dental-whitening treatments, improving comfort, safety, and efficacy.
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Gaidarji B, Perez BG, Ruiz-López J, Pérez MM, Durand LB. Effectiveness and color stability of bleaching techniques on blood-stained teeth: An in vitro study. J ESTHET RESTOR DENT 2021; 34:342-350. [PMID: 34859941 DOI: 10.1111/jerd.12850] [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: 09/28/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Evaluate the effectiveness and color stability of bleaching techniques on blood-stained teeth. MATERIAL AND METHODS The teeth were stained by blood and allocated to groups: walking bleach, inside/outside, and in-office bleaching. L*, a*, b*, C*, h° color coordinates were measured using a clinical spectrophotometer at baseline, weekly (T1-T2-T3), and at 1-week (T4), 6-months (T5), and 1-year (T6) follow-up evaluations. ΔE ab * , ΔE 00 , and ΔWI D were calculated between sequential evaluation timepoints and between baseline and each evaluation timepoint. Color coordinates and WID differences in each timepoint and technique were analyzed by Wilcoxon Signed Rank, Kruskal-Wallis and Mann-Whitney U test, respectively. ΔE ab * , ΔE 00 , and ΔWI D were interpreted by color visual thresholds. RESULTS The techniques presented a significant increase in L* and WID and, a significant decrease in a* and b* until the completion of treatments. Statistical differences between the techniques for a*, b* and WID were observed from T1 until T3. All techniques demonstrated excellent effectiveness for ΔE ab * , ΔE 00 , and ΔWI D between baseline and each evaluation and follow-up timepoints. However, at T6, it was possible to identify a rebound effect for all techniques. CONCLUSIONS All bleaching techniques presented excellent effectiveness. The stability of the whitening produced was maintained for 6 months. CLINICAL SIGNIFICANCE Effective whitening of blood-stained teeth was achieved using walking bleach (sodium perborate), inside/outside (hydrogen peroxide - 7.5%) and in-office techniques (hydrogen peroxide - 35%). The bleaching techniques were effective after the completion of the treatments. A slight rebound was observed at 1 year follow-up.
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Affiliation(s)
- Bruna Gaidarji
- Post-Graduate Program in Oral Science, Division of Restorative Dentistry, Federal University of Santa Maria, Santa Maria, Brazil
| | - Bibiana Gabardo Perez
- Post-Graduate Program in Oral Science, Division of Restorative Dentistry, Federal University of Santa Maria, Santa Maria, Brazil
| | - Javier Ruiz-López
- Department of Optics, Faculty of Science, University of Granada, Campus Fuente Nueva, Granada, Spain
| | - María M Pérez
- Department of Optics, Faculty of Science, University of Granada, Campus Fuente Nueva, Granada, Spain
| | - Letícia Brandão Durand
- Department of Restorative Dentistry, School of Dentistry, Federal University of Santa Maria, Santa Maria, Brazil
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Piknjač A, Soldo M, Illeš D, Knezović Zlatarić D. Patients' Assessments of Tooth Sensitivity Increase One Day Following Different Whitening Treatments. Acta Stomatol Croat 2021; 55:280-290. [PMID: 34658374 PMCID: PMC8514226 DOI: 10.15644/asc55/3/5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 08/25/2021] [Indexed: 11/25/2022] Open
Abstract
Objectives The aim of this clinical study was to compare tooth sensitivity scores and color change values before and 1 day following whitening treatments using different concentrations of whitening agents for in-office and at-home procedures. Materials and methods A total of 60 participants divided into 3 groups were included in this study. A whitening procedure was carried out in groups using 40% hydrogen peroxide (HP) in in-office treatment, 16% and 10% carbamide peroxide (CP), respectively. Participants rated their tooth sensitivity at the baseline and 1 day following the treatment. The CIElab values were recorded and color differences were calculated. Results Within each of the whitening treatments, the tooth sensitivity scores significantly increased following the procedure (p<0.05). The largest significant increase in scores was noted in 40% HP in-office whitening treatment, while the lowest increase was noted in 10% CP at-home whitening treatments (p<0.05). The highest color change 1 day following the procedure was found in the 40% HP in-office whitening treatment group (3.3) and it significantly differed from both 16% CP and 10% CP at-home whitening treatments whose color difference was both 2.0, respectively (p<0.05). Conclusion 1 day following the procedure, a low concentrate CP agent for at-home whitening causes the least tooth sensitivity compared to higher concentrate CP for at-home and HP for in-office agents, with the same color change efficacy as higher concentrate CP agent. In case with slight tooth sensitivity reported at the baseline, a 10% CP whitening treatment should be recommended.
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Affiliation(s)
- Amar Piknjač
- - Private dental office Floss Gloss, Sarajevo, Bosnia and Herzegovina
| | - Mirko Soldo
- - Dental practice, Community Health Center Osječko-baranjska County, Osijek, Croatia
| | - Davor Illeš
- - Department of Removable Prosthodontics, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
| | - Dubravka Knezović Zlatarić
- - Department of Removable Prosthodontics, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
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Donassollo SH, Donassollo TA, Coser S, Wilde S, Uehara JLS, Chisini LA, Correa MB, Cenci MS, Demarco FF. Triple-blinded randomized clinical trial comparing efficacy and tooth sensitivity of in-office and at-home bleaching techniques. J Appl Oral Sci 2021; 29:e20200794. [PMID: 34614118 PMCID: PMC8523096 DOI: 10.1590/1678-7757-2020-0794] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 06/29/2021] [Indexed: 11/22/2022] Open
Abstract
Objective Our study aims to compare the efficacy and tooth sensitivity following in-office (35% hydrogen peroxide) or at-home (10% carbamide peroxide) bleaching treatments both preceded by 2% potassium nitrate (2%KF) desensitizing gel. Methodology 130 volunteers were randomly allocated to a) in-office bleaching and a placebo at-home protocol; or b) in-office placebo and at-home bleaching treatment. 2% KF was applied for 10 min before both treatments. Objective color evaluation was performed (spectrophotometer CIEL*a*b* system and CIEDE2000) to calculate the color change (ΔE00). Subjective evaluation was performed using the VITA classical shade guide followed by shade variation (ΔSGU) at the beginning and end of bleaching treatment and 2 weeks post-bleaching. Tooth sensitivity was daily recorded using a Likert scale varying from 1 (no sensitivity) to 5 (severe sensitivity). Analysis was carried out using non-parametric tests. Results Regarding the color change, at-home bleaching resulted in significant color improvement compared to in-office treatment for the parameters Δb* (p=0.003) and Δa* (p=0.014). Two weeks post-bleaching, the at-home treatment resulted in significant color improvement compared to in-office treatment for the parameters Δb* (p=0.037) and ΔE00 (p=0.033). No differences were observed in either ΔSGU parameters. Concerning sensitivity, patients treated with in-office bleaching reported more tooth sensitivity than the at-home group only on the first day after bleaching started, without significant differences in the other periods evaluated (p>0.05). Conclusions At-home and in-office bleaching, preceded by a desensitizing agent, were effective for vital teeth bleaching and 10% carbamide peroxide produced a higher whitening effect than 35% hydrogen peroxide in the short time evaluation. Tooth sensitivity rates were similar for the two techniques tested.
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Affiliation(s)
- Sandrina Henn Donassollo
- Universidade Federal de Pelotas, Programa de Pós-Graduação em Odontologia, Rio Grande do Sul, Pelotas, Brasil
| | - Tiago Aurélio Donassollo
- Faculdade Especializada na Área da Saúde do Rio Grande do Sul.,Faculdade de Odontologia, Rio Grande do Sul, Passo Fundo, Brasil
| | - Sumaia Coser
- Faculdade Especializada na Área da Saúde do Rio Grande do Sul.,Faculdade de Odontologia, Rio Grande do Sul, Passo Fundo, Brasil
| | - Sabrina Wilde
- Faculdade Especializada na Área da Saúde do Rio Grande do Sul.,Faculdade de Odontologia, Rio Grande do Sul, Passo Fundo, Brasil
| | - Juliana Lays Stolfo Uehara
- Faculdade Especializada na Área da Saúde do Rio Grande do Sul.,Faculdade de Odontologia, Rio Grande do Sul, Passo Fundo, Brasil
| | | | - Marcos Britto Correa
- Universidade Federal de Pelotas, Rio Grande do Sul, Passo Fundo, Pelotas, Brasil
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Piknjač A, Zlatarić DK. Clinical Evaluation of 6-Month Efficacy of 40% in-Office Whitening Treatment. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2021. [DOI: 10.1590/pboci.2021.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Amar Piknjač
- Private Dental Office Floss&Gloss, Bosnia and Herzegovina
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Impact of tooth bleaching on oral health-related quality of life in adults: A triple-blind randomised clinical trial. J Dent 2020; 105:103564. [PMID: 33359042 DOI: 10.1016/j.jdent.2020.103564] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE To investigate the impact of tooth bleaching on oral health-related quality of life (OHRQoL) in adults using a randomised clinical trial comparing at-home and in-office bleaching. METHOD A total of 130 individuals were randomly allocated to two groups (n = 65) according to the type of treatment. At-home treatment was performed using 10 % carbamide peroxide (2 h/day; 3 weeks) and an in-office placebo, while 35 % hydrogen peroxide was used for in-office (1/week; 3 weeks) and an at-home placebo. Colour was assessed using the CIELAB system using a digital spectrophotometer. Objective and subjective colour change was estimated by calculating CIEDE2000 (ΔE00) and shade guide units (ΔSGU), respectively. The OHRQoL was measured using the Brazilian version of the Oral Health Impact Profile (OHIP-14). All assessments were performed at baseline and after 21 days. For bivariate analysis, the chi-square test, Student's t-test, and Wilcoxon test were used. The effects of OHRQoL were assessed using distribution-based responsiveness. RESULTS Objective colour change was observed at home (p = 0.033), in comparison to in-office (p = 0.429). Mean OHIP-14 scores were similar between groups at baseline (p = 0.368) and after treatment (p = 0.695). Bleaching had a moderate positive effect on the OHRQoL of adults, especially with respect to the psychological discomfort domains, social disability, and total OHIP-14 score. The perception of tooth sensitivity in the group that received at-home treatment was negatively associated with OHRQoL (p = 0.037). CONCLUSION The bleaching agents were highly effective and demonstrated a moderate influence on the patients' aesthetic perception and psychosocial impact.
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Meireles SS, de Sousa JP, Lins RBE, Sampaio FC. Efficacy of whitening toothpaste containing blue covarine: A double-blind controlled randomized clinical trial. J ESTHET RESTOR DENT 2020; 33:341-350. [PMID: 32820846 DOI: 10.1111/jerd.12605] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/30/2019] [Accepted: 05/16/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVE This randomized clinical trial evaluated the efficacy and safety of a blue-covarine whitening toothpaste on tooth bleaching. SUBJECTS AND METHODS Seventy-five subjects with shade mean C1 or darker were randomized into three groups (n = 25): CT-conventional toothpaste, WT-whitening toothpaste, and CP10-10% carbamide peroxide. Subjects from CT and WT brushed their teeth twice/day for 2 weeks. CP10 used bleaching gel for 4 hours/night for 2 weeks. Tooth shade and CIELab parameters were measured at baseline, after the first application, 2- and 4-week. ΔE*ab and ΔE00 were calculated. Subjects' perception about tooth color appearance, tooth sensitivity (TS), and gingival irritation (GI) were also assessed. RESULTS At all evaluation periods, it was not observed differences between WT and CT considering tooth shade (P > 0.7) or CIELab parameters (P > 0.3). At 2- and 4-week, ΔE*ab and ΔE00 were higher for CP10 than WT or CT (P = 0.001). WT and CT reported major dissatisfaction with tooth color appearance than CP10 (P = 0.001). At 1- and 2-week, WT experienced GI and TS similar to CT, both lower than CP10 (P < 0.01). CONCLUSION There were no significant differences in the whitening efficacy between whitening and conventional toothpastes. Neither of the dentifrices was as effective as at-home bleaching. CLINICAL SIGNIFICANCE The silica-based toothpaste containing blue covarine evaluated in this study did not give significant tooth whitening benefits over 2 weeks of use.
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Affiliation(s)
- Sônia Saeger Meireles
- Department of Operative Dentistry, Federal University of Paraiba, João Pessoa, Paraiba, Brazil
| | | | - Rodrigo Barros Esteves Lins
- PhD student in Restorative Dentistry, University of Campinas - Piracicaba Dental School, Piracicaba, São Paulo, Brazil
| | - Fábio Correia Sampaio
- Department of Clinical and Social Dentistry, Federal University of Paraiba, João Pessoa, Paraiba, Brazil
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