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Favoreto MW, de Souza Carneiro T, Forville H, Burey A, Simas Dreweck FD, Loguercio AD, Reis A. Use of calcium-containing bioactive desensitizers in dental bleaching: A systematic review and meta-analysis. J Am Dent Assoc 2023; 154:245-259.e12. [PMID: 36717350 DOI: 10.1016/j.adaj.2022.11.012] [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: 07/26/2022] [Revised: 10/26/2022] [Accepted: 11/28/2022] [Indexed: 01/30/2023]
Abstract
BACKGROUND Topical application of calcium-containing bioactive desensitizers (CBs) has been used to minimize bleaching-induced tooth sensitivity (TS). This study answered the research question "Is the risk of TS lower when CBs are used with dental bleaching in adults compared with bleaching without desensitizers?" TYPES OF STUDIES REVIEWED The authors included randomized clinical trials comparing topical CB application with a placebo or no intervention during bleaching. Searches for eligible articles were performed in MEDLINE via PubMed, Cochrane Library, Brazilian Library in Dentistry, Latin American and Caribbean Health Sciences Literature, Scopus, Web of Science, Embase, and gray literature without language and date restrictions and updated in September 2022. The risk of bias was evaluated using Risk of Bias Version 2.0. The authors conducted meta-analyses with the random-effects model. The authors assessed heterogeneity with the Cochrane Q test, I2 statistics, and prediction interval. The authors used the Grading of Recommendations Assessment, Development and Evaluation approach to assess the certainty of the evidence. RESULTS After database screening, 22 studies remained, with most at high risk of bias. No difference in the risk of TS was detected (risk ratio, 0.95; 95% CI, 0.90 to 1.01; P = .08, low certainty). In a visual analog scale, the intensity of TS (mean difference, -0.98; 95% CI, -1.36 to -0.60; P < .0001, very low certainty) was lower for the CB group. The color change was unaffected (P > .08). PRACTICAL IMPLICATIONS Although topical CB dental bleaching did not reduce the risk of TS and color change, these agents slightly reduced the TS intensity, but the certainty of the evidence is very low.
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Alshehri A, Kolker J, Teixeira E, Xie XJ, Fiegel J, Wertz P. Time Frame Analysis of Potassium Nitrate and Hydrogen Peroxide Diffusion into the Pulp Chamber. Oper Dent 2022; 47:357-365. [PMID: 35671228 DOI: 10.2341/21-006-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The primary objective of this study was to evaluate the effect of an innovative double-layer, single-application desensitizing/whitening technique of potassium nitrate (PN) and hydrogen peroxide (HP) diffusion at different time points. METHODS AND MATERIALS Specimens were prepared from extracted caries-free human molars (n=90). Teeth were randomly assigned into four groups: Group A (HP CTRL) treated with 25% HP for 45 minutes, group B (PN CTRL) received a single-layer treatment of 5% PN for 45 minutes, group C received the double-layer treatment of 5% PN and 25% HP for 45 minutes, and group D received a 3% PN incorporated in a 40% HP gel for 45 minutes. PN and HP concentrations were measured at 5, 15, 30, and 45 minutes using standard chemical kits. Group comparisons were made using a repeated measures analysis of variance (ANOVA) test. Pairwise tests for differences in diffusion were done, using the Tukey adjustment of p values for multiple comparisons. A significance level of 5% was used. RESULTS Group A showed no significant difference in HP diffusion rates between the 5- and 15- minute, 15- and 30-minute, or 30- and 45-minute time points; group D showed a similar trend; however, group C differed significantly at the 5-and 15-minute time points (p=0.0004), at the 15-and 30-minute time points (p=0.0026), and the 30- and 45-minute time points (p=0.0014). For PN diffusion, groups B and C had significantly different levels at the 15-, 30-, and 45-minute time points (p=0.0005, p=0.0002, and p<0.0001, respectively); and at the 15-, 30-, and 45-minute time points, groups D and C had significantly different PN diffusion (p=0.0327, p=0.0004, and p< 0.0001, respectively). Group C had significantly different PN diffusion at the 5- and 15-minute time points (p=0.0004), the 15- and 30-minute time points (p=0.0026), and at the 30- and 45-minute time points (p=0.0014). CONCLUSION The double-layer technique showed superior diffusion of PN into the pulp chamber and did not affect the diffusion of HP when compared to other techniques. The double-layer technique may be suggested as an alternative tooth-whitening treatment to minimize tooth sensitivity.
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Affiliation(s)
- A Alshehri
- *Abdullah Alshehri, BDS, MS, PhD, Conservative Dental Department, College of Dentistry, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - J Kolker
- Justine Kolker, DDS, MS, PhD, College of Dentistry, Department of Operative Dentistry, University of Iowa, Iowa City, IA, USA
| | - E Teixeira
- Erica Teixeira, DDS, MS. PhD, College of Dentistry, Department of Operative Dentistry, University of Iowa, Iowa City, IA, USA
| | - X J Xie
- Xian Jin Xie, MS, MS, PhD, College of Dentistry, Department of Biostatistics, University of Iowa, Iowa City, IA, USA
| | - J Fiegel
- Jennifer Fiegel, BS, PhD, College of Engineering Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA, USA
| | - P Wertz
- Philip Wertz, MS, PhD, Department of Oral Pathology, Radiology and Medicine, Dows Institute for Dental Research, University of Iowa College of Dentistry & Dental Clinics, Iowa City, IA, USA
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Ortega-Moncayo MG, Aliaga-Sancho P, Pulido C, Gutierrez MF, Rodriguez-Salazar E, Burey A, León K, Román-Oñate Y, Galvao Arrais CA, Loguercio AD, Dávila-Sánchez A. Is the use of a potassium nitrate dentifrice effective in reducing tooth sensitivity related to in-office bleaching? A randomized triple-blind clinical trial. J ESTHET RESTOR DENT 2021; 34:951-958. [PMID: 34617663 DOI: 10.1111/jerd.12826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/21/2021] [Accepted: 09/24/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aims of this study were to evaluate whether the use of a dentifrice containing 5% potassium nitrate (KNO3 ) prior to and during in-office dental bleaching reduces bleaching-induced tooth sensitivity and affects bleaching efficiency. MATERIALS AND METHODS Thirty-eight individuals were randomly distributed into two groups (n = 19). The experimental group performed toothbrushing using a dentifrice containing 5% KNO3 , one week before treatment and before the first and second bleaching sessions. In the control group, a placebo dentifrice without KNO3 was applied as described for the first group. Tooth sensitivity was recorded on visual analog scales (VAS) and numeric rating scales (NRS) immediately and up to 48 h after bleaching sessions. Color change at different time intervals, was evaluated with shade guide units (∆SGU) and a digital spectrophotometer (∆E CIELab 1976 and CIEDE2000) at baseline and 7, 15, and 30 days post-bleaching. Mann-Whitney test and t-test were used to evaluate TS intensity for NRS and VAS scales, respectively, and T-test was used for color difference evaluation. RESULTS No significant difference in tooth sensitivity's absolute risk and intensity were observed between tested groups in any evaluated treatment time for NRS (p = 0.91) or VAS scales (p = 0.48). T-test showed no significant difference in both ∆E and ∆SGU tooth color among the experimental and control groups during the different evaluation times (p = 0.27). CONCLUSION The use of a dentifrice containing 5% KNO3 does not prevent post-operatory tooth sensitivity but allows the same whitening efficiency as a regular dentifrice. CLINICAL SIGNIFICANCE The use of a dentifrice-containing KNO3 did not prevent bleaching-induced tooth sensitivity when high-concentrated hydrogen peroxide was used for in-office bleaching.
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Affiliation(s)
- María Gracia Ortega-Moncayo
- Postgraduate Student. School of Dentistry, Universidad San Francisco de Quito USFQ, Diego de Robles y Av. Interoceánica, Quito, 170901, Ecuador
| | - Paulina Aliaga-Sancho
- Department of Restorative Dentistry and Dental Materials. School of Dentistry, Universidad San Francisco de Quito USFQ, Diego de Robles y Av. Interoceánica, Quito, Ecuador, 170901, Ecuador
| | - Camilo Pulido
- Department of Restorative Dentistry and Dental Materials. School of Dentistry, Universidad San Francisco de Quito USFQ, Diego de Robles y Av. Interoceánica, Quito, Ecuador, 170901, Ecuador
| | - Mario Felipe Gutierrez
- Facultad de Odontología, Universidad de los Andes, Monseñor Álvaro del Portillo 12455, Santiago, 7550000, Chile.,Facultad de Odontología, Universidad Finis Terrae, Av. Pedro de Valdivia 1509, Santiago, 7501015, Chile
| | - Estuardo Rodriguez-Salazar
- Department of Prosthodontics, School of Dentistry, Universidad Francisco Marroquin (UFM), Guatemala City, Guatemala
| | - Adrieli Burey
- Department of Biological and Health Sciences, School of Dentistry, Centro Universitario Cesumar Unicesumar, Centro, Brazil
| | - Katherine León
- Postgraduate Student. School of Dentistry, Universidad San Francisco de Quito USFQ, Diego de Robles y Av. Interoceánica, Quito, 170901, Ecuador
| | - Yolanda Román-Oñate
- Department of Prosthodontics. School of Dentistry, Universidad San Francisco de Quito USFQ, Diego de Robles y Av. Interoceánica, Quito, 170901, Ecuador
| | - Cesar Augusto Galvao Arrais
- 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
| | - Andrés Dávila-Sánchez
- Department of Restorative Dentistry and Dental Materials. School of Dentistry, Universidad San Francisco de Quito USFQ, Diego de Robles y Av. Interoceánica, Quito, Ecuador, 170901, Ecuador
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Bleaching: the initial treatment consideration for tetracycline-stained teeth. Br Dent J 2021; 230:807-812. [PMID: 34172864 DOI: 10.1038/s41415-021-3121-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/09/2020] [Indexed: 11/08/2022]
Abstract
Tray tooth bleaching involves the use of carbamide peroxide in a custom-fitted tray to bleach teeth. One of the most difficult stains to bleach is tetracycline. This paper will present several different patient situations of tetracycline-stained teeth being bleached and will discuss the benefits and limitations of bleaching tetracycline-stained teeth. By providing the patient with realistic potential outcomes of bleaching, as well as the preservation of tooth structure and cost-benefit ratio of bleaching compared to veneers or crowns, the chance for a successful acceptance of the outcome is better, even if the outcome is less than ideal. Bleaching before prosthodontic treatment can also provide a better outcome for subsequent veneers or crowns if that is possible, but sensitivity may preclude bleaching.
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Martini EC, Favoreto MW, Rezende M, de Geus JL, Loguercio AD, Reis A. Topical application of a desensitizing agent containing potassium nitrate before dental bleaching: a systematic review and meta-analysis. Clin Oral Investig 2021; 25:4311-4327. [PMID: 34075489 DOI: 10.1007/s00784-021-03994-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 05/17/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVES To conduct a systematic review and meta-analysis to evaluate the risk and intensity of tooth sensitivity (TS) after topical application of desensitizers containing potassium nitrate before dental bleaching. METHODS We searched PubMed, Scopus, Web of Science, LILACS, BBO, Cochrane Library, and SIGLE. We also surveyed gray literature without restrictions. We meta-analyzed the data using the random-effects model to compare potassium nitrate and placebo in terms of risk and intensity of TS and color change (∆SGU or ∆E). The quality of the evidence was rated using the GRADE approach. The risk of bias (RoB) of the included studies was analyzed using the Cochrane RoB tool. RESULTS After the database screening, 24 articles remained. A significant 12% lower risk for the groups where desensitizing agents were applied (p = 0.02), with a risk ratio of 0.88 (95% CI 0.78 to 0.98). About the intensity of TS, a significant average mean difference of - 0.77 units of VAS units (95%CI - 1.34 to - 0.19; p = 0.01) in favor of the desensitizer group. In the NRS scale, a significant average mean difference of - 0.36 (95% CI - 0.61 to - 0.12; p value = 0.004) in favor of the desensitizer group. No significant difference was observed in color change (p > 0.28) in ∆SGU and ∆E. CONCLUSIONS Although a significant reduction in the risk and intensity of TS was observed in groups treated with a potassium nitrate at some point during the bleaching, the clinical significance of this reduction is subtle and clinically questionable. Color change is not affected by the use of agents. CLINICAL RELEVANCE The reduction in the risk and intensity of TS with the topical application of potassium nitrate-based desensitizing agents in dental bleaching is subtle and maybe clinically questionable.
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Affiliation(s)
- E C Martini
- Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil.
| | - M W Favoreto
- Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil
| | - M Rezende
- Paulo Picanço School of Dentistry, Fortaleza, Ceará, Brazil
| | - J L de Geus
- Paulo Picanço School of Dentistry, Fortaleza, Ceará, Brazil
| | - A D Loguercio
- Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil
| | - A Reis
- Department of Restorative Dentistry, State University of Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Bloco M, Sala 04, Ponta Grossa, Paraná, 84030-900, Brazil
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The combined use of systemic analgesic/anti-inflammatory drugs and a bioactive topical desensitizer for reduced in-office bleaching sensitivity without jeopardizing the hydrogen peroxide efficacy: a randomized, triple blinded, split-mouth clinical trial. Clin Oral Investig 2021; 25:6623-6632. [PMID: 33884504 DOI: 10.1007/s00784-021-03948-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 04/12/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To evaluate the effect of combined systemic administration of paracetamol 500 mg/codeine phosphate 30 mg (PACO) and postoperative topical application of a bioactive desensitizer on in-office bleaching sensitivity and tooth color change. MATERIALS AND METHODS A randomized, triple-blind, split-mouth clinical trial was conducted. Forty volunteers ingested PACO (n = 20) or placebo (PLA) (n = 20). Their left/right hemiarches received topical application of a bioactive desensitizer [Nano-P™(NP)] and prophylactic paste (PAS), generating four treatment approaches: PACO/NP, PACO/PAS, PLA/NP, and PLA/PAS. Two bleaching sessions (35% hydrogen peroxide) were performed, and the PAS/NP were applied after the procedure. Sensitivity was obtained since the first bleaching session up to 7 days post-bleaching. The color change was evaluated using CIEDE2000 and whiteness index parameters up to 7 days post-bleaching. Data were analyzed using one- and two-way ANOVA/Tukey post hoc tests (p < 0.05). RESULTS The PLA/PAS showed a sensitivity average of at least two times higher than the PACO/NP. The treatment approaches promoted statistically similar bleaching patterns (p > 0.05). CONCLUSION The combined approach of systemic administration of PACO and postoperative topical application of NP reduced the level of in-office bleaching sensitivity without jeopardizing hydrogen peroxide efficacy. CLINICAL RELEVANCE Professionals can adopt the combined approach of systemic administration of analgesic/anti-inflammatory drugs and topical application of a bioactive desensitizer for decreased bleaching sensitivity caused by 35% hydrogen peroxide in-office.
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Haywood VB, Sword RJ. Tray bleaching status and insights. J ESTHET RESTOR DENT 2020; 33:27-38. [DOI: 10.1111/jerd.12688] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Van B. Haywood
- Restorative Sciences Department Dental College of Georgia, Augusta University Augusta Georgia
| | - Rhoda J. Sword
- Restorative Sciences Department Dental College of Georgia, Augusta University Augusta Georgia
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Parreiras SO, Favoreto MW, Lenz RE, Serra ME, Borges CPF, Loguercio AD, Reis A. Effect of Prior Application of Desensitizing Agent on the Teeth Submitted to In-Office Bleaching. Braz Dent J 2020; 31:236-243. [PMID: 32667516 DOI: 10.1590/0103-6440202003365] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/07/2020] [Indexed: 11/22/2022] Open
Abstract
This study aimed to quantify the penetration of hydrogen peroxide, color change evaluation, surface morphology, and composition after application of desensitizing agents before in-office bleaching. Fifty premolars were sectioned, an acetate buffer was placed in the pulp chamber and divided into five groups (n=10). In the positive control group, only the in-office bleaching gel was used, and in the negative control group, no treatment was used. Three different desensitizing agents were applied: Desensibilize KF2%® group; Mi Paste® group, and Desensibilize Nano-P® group. The bleaching procedure was carried out with 35% HP. The absorbance of the resulting solution was determined in a spectrophotometer. Color change was assessed by using a digital spectrophotometer. Four additional premolars were assigned to the same groups above for analysis under scanning electron microscope, as well as to evaluate the elemental composition with X-ray dispersive energy spectrometry. Data were subjected to ANOVA and Tukey's test (α=0.05). All products reduced the penetration of HP in the pulp chamber. Mi Paste and Nano P were the products that yielded the lowest HP penetration, which was similar to the negative control group (p<0.001). No significant difference was detected in color change (p<0.001). Concerning enamel morphology, the groups that were analyzed after bleaching were observed a greater deposition of desensitizing agents on the surface. The use of desensitizing agents before tooth bleaching seems to be an alternative to reduce adverse effects of the tooth.
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Affiliation(s)
| | | | - Rubia Elisa Lenz
- School of Dentistry, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Maria Eduarda Serra
- School of Chemistry, UniversidadeEstadual de Ponta Grossa, Ponta Grossa, PR, Brazil
| | | | | | - Alessandra Reis
- School of Dentistry, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil
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Pratiwi D, Anggakusuma K, Widyarman A. The effect of carbamide peroxide on surface enamel structural changes and streptococcus mutans attachment. SCIENTIFIC DENTAL JOURNAL 2020. [DOI: 10.4103/sdj.sdj_29_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Martins LM, Lima e Souza LA, Sutil E, da Silva LM, Silva JOS, Reis A, Loguercio AD. Clinical Effects of Desensitizing Prefilled Disposable Trays in In-office Bleaching: A Randomized Single-blind Clinical Trial. Oper Dent 2020; 45:E1-E10. [DOI: 10.2341/18-149-c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objectives:
This study aimed to evaluate the desensitizing effect of a prefilled disposable tray containing potassium nitrate and fluoride on the self-reported tooth sensitivity (TS) and the bleaching efficacy of 40% hydrogen peroxide bleaching agent used for in-office bleaching in comparison with potassium nitrate and fluoride gel applied in a conventional-delivered tray system in an equivalence clinical trial.
Methods and Materials:
Seventy-eight patients, with a right maxillary canine darker than A3, were selected for this single-blind (evaluators), randomized clinical trial. Teeth were bleached in two sessions with a one-week interval in between. Before in-office bleaching, the prefilled disposable tray or conventional tray containing potassium nitrate and fluoride was used for 15 minutes. Subsequently, the bleaching agent was applied in two 20-minute applications (per the manufacturer's directions) in each session. The color change was evaluated by subjective (Vita Classical and Vita Bleachedguide) and objective (Easyshade Advance Spectrophotometer) methods at baseline and 30 days after the first bleaching session. TS was recorded for up to 48 hours using a 0-10 visual analog scale. The absolute risk was evaluated by chi-square test, while the intensity of TS was evaluated by McNemar test (α=0.05). Color change in shade guide units and ΔE was analyzed by Student t-test for independent samples (α=0.05).
Results:
Significant whitening was observed in both groups after 30 days of clinical evaluation. The use of different methods of desensitizer in a tray did not influence the absolute risk and intensity of TS (p>0.05), although a tendency of lower risk of TS with the prefilled disposable tray containing potassium nitrate and fluoride was observed.
Conclusion:
The use of a prefilled disposable tray containing potassium nitrate and fluoride before the application of the in-office bleaching product did not affect the whitening degree and decreased self-reported TS when compared with a conventional-delivered tray system.
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Affiliation(s)
- LM Martins
- Leandro de Moura Martins, DDS, Ms, PhD, professor, Faculdade de Odontologia, Universidade Federal do Amazonas, Manaus, Brazil
| | - LA Lima e Souza
- Larissa Alves Lima e Souza, DDS, MS, Faculdade de Odontologia, Universidade Federal do Amazonas, Manaus, Brazil
| | - E Sutil
- Elisama Sutil, DDS, Ms student, University Estadual de Ponta Grossa, Restorative Dentistry, Ponta Grossa, Brazil
| | - LM da Silva
- Luciana Mendonça da Silva, DDS, PhD, professor, Faculdade de Odontologia, Universidade Federal do Amazonas, Manaus, Brazil
| | - JOS Silva
- Luciana Mendonça da Silva, DDS, PhD, professor, Faculdade de Odontologia, Universidade Federal do Amazonas, Manaus, Brazil
| | - A Reis
- Alessandra Reis, DDS, PhD, professor, State University of Ponta Grossa, Restorative Dentistry, Ponta Grossa, Brazil
| | - AD Loguercio
- Alessandro D Loguercio, DDS, Ms, PhD, professor, State University of Ponta Grossa, Restorative Dentistry, Ponta Grossa, Brazil. Professor, Faculdad de Ciencias de la Salud Eugenio Espejo, University UTE, Quito, Ecuador
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Sabry Tawfik S, Khairy MAE, ElBaz MAE, El korashy MEM. Evaluation of post-bleaching hypersensitivity using desensitizing agent before and /or after in-office bleaching: A randomized clinical trial. F1000Res 2019; 8:1762. [DOI: 10.12688/f1000research.20841.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Background: Dental bleaching has become one of the most demanded aesthetic procedures as it is very simple and gives fast results that satisfy the patient’s wishes. However, unfortunately, it has the annoying side effect of tooth sensitivity. This clinical trial was designed to evaluate the efficacy of using a desensitizing agent, which was applied during in-office bleaching with 30% HP (hydrogen peroxide). Methods: 36 participants were divided into four groups (N = 9). According to the intended intervention as follows: Group I:—Application of Relief ®Amorphous Calcium Phosphate (ACP) before in-office bleaching; Group II—Application of Relief ®ACP before and after in-office bleaching; Group III—Application of Relief ®ACP after in-office bleaching; and Group IV: placebo was applied before and after in-office bleaching. Then, three hydrogen peroxide bleaching applications for a total of 45 minutes were performed. The primary outcome variable was hypersensitivity, assessed with (VAS) scale immediately and 24h, 1 week and 1 month after the procedure; while the secondary outcome was teeth shade assessed using the VITAPAN ® classical shade guide. Results: Statistical analysis was done using Kolmogorov-Smirnov, Shapiro-Wilk tests, Kruskal-Wallis test and Dunn’s test. Immediately after bleaching, there was statistically significant distinction in the median pain score between the groups. After 1 day, the ACP gel before and after bleaching group showed the lowest median score, while, the control group confirmed the highest median score. After 2 days, no statistically sizable difference was observed between all groups. The group receiving ACP gel before and after showed the highest change in median of classical shade guide scores while, (ACP gel after) and control group; showed the lowest change. Conclusion: The application of the desensitizing agent prior to and after in–office bleaching was successful in lowering post-bleaching hypersensitivity. Trail Registration: Clinical trial.gov NCT02942082 21/10/2016
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Haywood VB, Al Farawati F. Bleaching update and the future impact on prosthodontics. Br Dent J 2019; 226:753-760. [DOI: 10.1038/s41415-019-0314-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Martini EC, Parreiras SO, Szesz AL, Coppla FM, Loguercio AD, Reis A. Bleaching-induced tooth sensitivity with application of a desensitizing gel before and after in-office bleaching: a triple-blind randomized clinical trial. Clin Oral Investig 2019; 24:385-394. [DOI: 10.1007/s00784-019-02942-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 05/02/2019] [Indexed: 01/24/2023]
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