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Weiss GS, Silva FRO, Garcia RM, Sakae LO, Viana ÍEL, Hara AT, Lima LC, Scaramucci T. Experimental toothpastes containing β-TCP nanoparticles functionalized with fluoride and tin to prevent Erosive Tooth Wear. J Dent 2024; 149:105273. [PMID: 39084548 DOI: 10.1016/j.jdent.2024.105273] [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: 06/14/2024] [Revised: 07/17/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024] Open
Abstract
OBJECTIVES The present study aimed to synthesize toothpastes containing Beta- TriCalcium Phosphate (β-TCP) nanoparticles, functionalized with fluoride and tin, and test their ability to reduce erosive tooth wear (ETW). METHODS Toothpastes were synthesized with the following active ingredients: 1100 ppm of fluoride (as sodium fluoride, F-), 3500 ppm of tin (as stannous chloride, Sn2+), and 800 ppm of β-TCP (Sizes a - 20 nm; and b - 100 nm). Enamel specimens were randomly assigned into the following groups (n = 10): 1. Commercial toothpaste; 2. Placebo; 3 F-; 4. F- + β-TCPa; 5. F- + β-TCPb; 6. F- + Sn2+; 7. F- + Sn2+ + β-TCPa and 8. F- + Sn2+ + β-TCPb. Specimens were subjected to erosion-abrasion cycling. Surface loss (in µm) was measured by optical profilometry. Toothpastes pH and available F- were also assessed. RESULTS Brushing with placebo toothpaste resulted in higher surface loss than brushing with F- (p = 0.005) and F- + β-TCPb (p = 0.007); however, there was no difference between F- and F- + β-TCPb (p = 1.00). Commercial toothpaste showed no difference from Placebo (p = 0.279). The groups F-, F- + β-TCPa, F- + β-TCPb, F- + Sn2+, F- + Sn2+ + β-TCPa and F- + Sn2+ + β-TCPb were not different from the commercial toothpaste (p > 0.05). Overall, the addition of β-TCP reduced the amount of available fluoride in the experimental toothpastes. The pH of toothpastes ranged from 4.97 to 6.49. CONCLUSIONS Although toothpaste containing β-TCP nanoparticles protected enamel against dental erosion-abrasion, this effect was not superior to the standard fluoride toothpaste (commercial). In addition, the functionalization of β-TCP nanoparticles with fluoride and tin did not enhance their protective effect. CLINICAL SIGNIFICANCE Although β-TCP nanoparticles have some potential to control Erosive Tooth Wear, their incorporation into an experimental toothpaste appears to have a protective effect that is similar to a commercial fluoride toothpaste.
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Affiliation(s)
- Guilherme Stangler Weiss
- Department of Restorative Dentistry, University of São Paulo (USP), School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Flávia Rodrigues Oliveira Silva
- Material Science and Technology Center, Nuclear and Energy Research Institute (IPEN-CNEN), Av. Prof. Lineu Prestes 2242, São Paulo, SP 05508-000, Brazil
| | - Raíssa Manoel Garcia
- Department of Restorative Dentistry, University of São Paulo (USP), School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Letícia Oba Sakae
- Department of Restorative Dentistry, University of São Paulo (USP), School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Ítallo Emídio Lira Viana
- Department of Comprehensive Care, Division of Operative Dentistry - Tufts University School of Dental Medicine, Boston, MA, USA
| | - Anderson T Hara
- Department of Cariology and Operative Dentistry, Indiana University School of Dentistry (IUSD), Indianapolis, IN, USA
| | - Leonardo Custódio Lima
- Department of Dentistry, Federal University of Juiz de Fora (UFJF), Campus Governador Valadares, MG, 35010-180, Brazil.
| | - Taís Scaramucci
- Department of Restorative Dentistry, University of São Paulo (USP), School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
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Souza VTFS, Cortez TV, Paschoini-Costa VL, Borsatto MC, Corona SAM, Souza-Gabriel AE. Effect of the calcium silicate and sodium phosphate remineralizing products on bleached enamel. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:577-583. [PMID: 38989498 PMCID: PMC11232766 DOI: 10.4103/jcde.jcde_167_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 07/12/2024]
Abstract
Context and Aims This study evaluated the effect of calcium silicate and sodium phosphate (CSSP) dentifrice and serum on the surface of enamel bleached with hydrogen peroxide (H2O2). Materials and Methods A total of 160 bovine enamel slabs were bleached with 35% H2O2 and treated with sodium fluoride (NaF) dentifrice-GI, CSSP dentifrice-GII; CSSP dentifrice + CSSP serum-GIII, or NaF dentifrice + NaF gel-GIV. The dentifrices were applied using a brushing machine three times daily for 7 days. After brushing, sodium phosphate gel and CSSP serum were applied. The microhardness (KNH, n = 14), surface roughness (Ra, n = 14), energy dispersive spectroscopy (n = 6), and scanning electron microscopy (n = 6) were assessed at t0 (before bleaching), t1 (after bleaching), and t2 (after postbleaching treatments). Statistical Analysis Used The data were subjected to a two-way analysis of variance and Bonferroni's test. Results The KNH decreased at t1 (P < 0.001) but recovered at t2 for all treatments, although only GII showed restored baseline values (P = 0.0109). The surface roughness increased at t1 (P < 0.001) and reduced at t2 (P < 0.001) for all groups, with no significant differences among groups. Enamel composition and morphology did not differ after the treatments, except for silicon accumulation in GIII. Conclusions Postbleaching treatment with CSSP dentifrice and serum yielded superior remineralizing effects on bleached enamel.
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Affiliation(s)
| | - Thiago Vinicius Cortez
- Department of Restorative Dentistry, Ribeirão Preto School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - Maria Cristina Borsatto
- Department of Pediatric Dentistry, Ribeirão Preto School of Dentistry, University of São Paulo, São Paulo, Brazil
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Kanzow P, Witt C, Lechte C, Barke S, Rohland B, Schmidt A, Wiegand A. Effect of different brushing parameters on erosive tooth wear in primary bovine enamel and dentin. PLoS One 2024; 19:e0302261. [PMID: 38626124 PMCID: PMC11020396 DOI: 10.1371/journal.pone.0302261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/31/2024] [Indexed: 04/18/2024] Open
Abstract
This in-vitro study aimed to analyse the effect of brushing and different brushing parameters (kind of toothpaste, kind of toothbrush, brushing force) on erosive tooth wear of primary bovine enamel and dentin. Specimens were prepared from primary bovine enamel or dentin (each group n = 12) and cyclically eroded (6 × 60 s/d, citric acid, pH 2.4) and brushed with children's toothbrushes (2 × 15 s/d) over 5 days. The brushing parameters under investigation were: toothpaste (fluoridated, fluoride-free), toothbrush (manual; rotating-oscillating and sonic, each at two different activation modes) and brushing force (1 N, 2 N). Specimens that were only eroded and not brushed served as controls. Enamel and dentin wear was quantified using widefield confocal microscopy. Statistical analysis was performed using three- and one-way ANOVAs followed by Scheffe's (enamel) or Tamhane's (dentin) post-hoc tests (p < 0.05). Brushing with the fluoridated toothpaste was able to significantly reduce erosive wear in enamel (by 15 to 37%, 6 of 10 groups) and in dentin (by 58 to 72%, all groups), while brushing with the fluoride-free toothpaste was not different from the controls. Considering the kind of toothpaste and brushing force, slight differences between the toothbrushes were observed in enamel, but not in dentin. Within the same toothbrush and activation mode, almost no differences between 1 and 2 N brushing force were detected. In conclusion, erosive tooth wear on primary bovine dental hard tissue mainly depends on the kind of toothpaste, rather than on the kind of toothbrush and the brushing force.
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Affiliation(s)
- Philipp Kanzow
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
| | - Corinna Witt
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
| | - Clemens Lechte
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
| | - Sarah Barke
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
| | - Bianca Rohland
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
| | - Alexandra Schmidt
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
| | - Annette Wiegand
- Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, Göttingen, Germany
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Sakae LO, Kairalla CA, Viana ÍEL, Carvalho TS, Niemeyer SH, Hara AT, Scaramucci T. Characteristics of tin-containing fluoride toothpastes related to erosive tooth wear protection. J Dent 2024; 143:104901. [PMID: 38417610 DOI: 10.1016/j.jdent.2024.104901] [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: 11/25/2023] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024] Open
Abstract
OBJECTIVES To assess the effect of different tin-containing toothpastes on the control of erosive tooth wear in enamel and dentin. METHODS Enamel and dentin slabs were randomly distributed into 7 experimental groups (n = 10/substrate): C-: negative control (Artificial saliva); AmF (regular fluoridated toothpaste without tin); Sn-1 (SnF2/NaF); Sn-2 (SnF2/NaF/SnCl2); Sn-3 (SnCl2/NaF); Sn-4 (SnF2/SnCl2); Sn-5 (SnCl2/AmF/NaF/chitosan). Specimens were submitted to 5-day erosion-abrasion cycling. Surface loss (SL) was determined with an optical profilometer. Tin deposition on the tooth surfaces and some characteristics of the toothpastes (pH, potentially available F-, %weight of solid particles, and RDA) were also assessed. Data were statistically analyzed (α = 0.05). RESULTS For enamel, the Sn-2 presented the lowest SL, not differing significantly from AmF, C+, and Sn-3. The SL of these groups was significantly lower than the C-, except for Sn-3. Sn-1 and Sn-4 were also not significantly different from C-. For dentin, C- significantly showed the highest SL values, whilst, Sn-1 presented the lowest SL, not differing significantly from AmF, Sn-2, C+, and Sn-3. There was a significant positive association between enamel SL and the pH and tin deposition. Dentin SL was significantly negatively associated with the %weight of solid particles and RDA. CONCLUSIONS Most of the tin-toothpastes were able to exhibit some protection against ETW. In this process, the toothpastes characteristics play a role, as lower enamel SL was significantly associated with lower pH values and tin deposition; and lower dentin SL was associated with higher %weight of solid particles and RDA of the toothpastes. CLINICAL SIGNIFICANCE Tin-containing toothpastes can be used for erosive tooth wear protection, but our study showed that their effect depends on the pH, amount of tin deposition, % weight of solid particles and RDA of the toohpastes.
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Affiliation(s)
- Letícia Oba Sakae
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil
| | - Cláudia Allegrini Kairalla
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil
| | - Ítallo Emídio Lira Viana
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil; Department of Comprehensive Care, Division of Operative Dentistry, Tufts University School of Dental Medicine, 1 Kneeland Street, Boston, MA 02111, USA
| | - Thiago Saads Carvalho
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010 Bern, Switzerland
| | - Samira Helena Niemeyer
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010 Bern, Switzerland
| | - Anderson Takeo Hara
- Department of Cariology, Operative Dentistry and Dental Public Health, Oral Health Research Institute, Indiana University School of Dentistry, 415 Lansing Street, Indianapolis, IN 46202, USA
| | - Taís Scaramucci
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil.
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Orilisi G, Vitiello F, Notarstefano V, Furlani M, Riberti N, Monterubbianesi R, Bellezze T, Campus G, Carrouel F, Orsini G, Putignano A. Multidisciplinary evaluation of the remineralization potential of three fluoride-based toothpastes on natural white spot lesions. Clin Oral Investig 2023; 27:7451-7462. [PMID: 37857734 PMCID: PMC10713761 DOI: 10.1007/s00784-023-05334-2] [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: 07/31/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVES This in vitro study aimed assessing the remineralization potential of three commercial fluoride-based toothpastes in permanent teeth with natural white spot lesions (WSLs). A multidisciplinary approach based on Raman microspectroscopy (RMS), Scanning electron microscopy (SEM), Energy-dispersive x-ray spectroscopy (EDS), and Vickers microhardness (VMH) was exploited. METHODS N = 12 human molars with natural WSLs in the proximal-vestibular zone were selected and divided into 4 groups (n = 3) according to the different treatments: HAF (hydroxyapatite with fluoride ions); SMF (sodium monofluorophosphate with arginine); SF (sodium fluoride with enzymes), and CTRL (untreated group). All toothpastes tested contained 1450 ppm of fluoride. Teeth samples were submitted to the following protocol: a 7-day pH cycling treatment, with two daily exposures (2 min each time) to the commercial toothpastes described above. The surface micromorphology (SEM), the chemical/elemental composition (RMS and EDS), and the Vickers microhardness (VMH) were evaluated. Statistical analysis was performed. RESULTS A remarkable remineralization of WSLs in SEM images was observed in all treated groups compared to CTRL. In particular, HAF and SF displayed higher values of VMH, phosphates amount (I960), crystallinity (FWHM960), and lower ones of C/P (I1070/I960) with respect to CTRL. Intermediate values were found in SMF, higher than CTRL but lower with respect to HAF and SF. As regards the Ca/P ratio, statistically significant differences (p < 0.05) were found between SF and the other groups. CONCLUSIONS All the tested dentifrices have shown to remineralize the WSLs. SF and HAF have comparable capability in hardness recovery and crystallinity; however, SF shows the best remineralizing potential according to both micromorphological and chemical analyses. Clinical relevance The daily use of toothpastes containing hydroxyapatite partially replaced with fluoride, sodium monofluorophosphate with arginine and sodium fluoride toothpaste associated with enzymes represents a preventive, therapeutic, effective, and non-invasive tool for remineralize WSLs.
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Affiliation(s)
- Giulia Orilisi
- Department of Clinical Sciences and Stomatology (DISCO), Università Politecnica Delle Marche, 60126, Ancona, Italy
| | - Flavia Vitiello
- Department of Clinical Sciences and Stomatology (DISCO), Università Politecnica Delle Marche, 60126, Ancona, Italy
- Health, Systemic, Process (P2S), Research Unit UR 4129, University Claude Bernard Lyon 1, University of Lyon, 69008, Lyon, France
| | - Valentina Notarstefano
- Department of Life and Environmental Sciences, Università Politecnica Delle Marche (DISVA), 60131, Ancona, Italy
| | - Michele Furlani
- Department of Clinical Sciences and Stomatology (DISCO), Università Politecnica Delle Marche, 60126, Ancona, Italy
| | - Nicole Riberti
- Department of Neurosciences Imaging and Clinical Sciences (DNISC), University of Chieti-Pescara, 66100, Chieti, Italy
| | - Riccardo Monterubbianesi
- Department of Clinical Sciences and Stomatology (DISCO), Università Politecnica Delle Marche, 60126, Ancona, Italy
| | - Tiziano Bellezze
- Department of Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica Delle Marche, 60131, Ancona, Italy
| | - Guglielmo Campus
- Department of Surgery, Microsurgery and Medicine Sciences, School of Dentistry, University of Sassari, 07100, Sassari, Italy
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, CH-3010, Bern, Switzerland
| | - Florence Carrouel
- Health, Systemic, Process (P2S), Research Unit UR 4129, University Claude Bernard Lyon 1, University of Lyon, 69008, Lyon, France
| | - Giovanna Orsini
- Department of Clinical Sciences and Stomatology (DISCO), Università Politecnica Delle Marche, 60126, Ancona, Italy.
| | - Angelo Putignano
- Department of Clinical Sciences and Stomatology (DISCO), Università Politecnica Delle Marche, 60126, Ancona, Italy
- National Institute of Health and Science of Aging (INRCA), 60124, Ancona, Italy
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Fernandes NLS, Silva JGVC, de Sousa EBG, D'Alpino PHP, de Oliveira AFB, de Jong EDJ, Sampaio FC. Effectiveness of fluoride-containing toothpastes associated with different technologies to remineralize enamel after pH cycling: an in vitro study. BMC Oral Health 2022; 22:489. [PMID: 36376830 PMCID: PMC9664592 DOI: 10.1186/s12903-022-02429-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND To evaluate the efficacy of fluoride-containing toothpastes with different technologies to remineralize artificial caries lesions in enamel. METHODS Bovine enamel blocks were divided into three thirds: intact (untreated), demineralized (artificial caries lesion), and treated (caries lesion, pH cycling with dentifrices). Enamel blocks were randomly distributed into five groups (n = 12): Fluoride-free toothpaste, Colgate Oral Care (NC); Arginine-containing toothpaste, Colgate Total Daily Repair (PC); Silicate-based fluoride toothpaste: REFIX technology, regenerador + sensitive (RDC), NR-5 technology, Regenerate Enamel Science (RES), and NOVAMIN technology, Sensodyne Repair and Protect (SRP). The specimens were submitted to a pH cycling model for 6 days. The efficacy of the toothpastes was estimated by calculating the surface microhardness recovery (%SMHR) and the fluorescence recovery (ΔFRE) with quantitative light-induced fluorescence. The cross-sectional micromorphology of the enamel surface was also assessed using scanning electron microscopy. Elemental analyses (weight%) were determined with an energy-dispersive X-ray spectrometer (EDS). The results were compared to that of the control (NC). Data were statistically analyzed (5%). RESULTS %SMHR could be ranked as follows: RDC = PC = RES = SRP > NC. Significantly higher %SMHR and ΔFRE means were observed after enamel treatment with RDC (22.7 and 46.9, respectively). PC (%SMHR = 18.8) was as efficacious as RDC to recover the surface microhardness with a significantly lower mean of ΔFRE (19.5). Only RDC was able to promote the formation of a mineralized layer on the surface of enamel enriched with silicon on the surface. CONCLUSIONS The silicate-based fluoride toothpaste containing REFIX technology demonstrated greater efficacy in the remineralizing artificial caries than the other products.
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Affiliation(s)
- Nayanna Lana Soares Fernandes
- Stricto Sensu Post-Graduate Program in Dentistry, Department of Clinical and Community Dentistry, Health Science Center, Federal University of Paraiba (UFPB), João Pessoa, PB, Brazil
| | | | | | - Paulo Henrique Perlatti D'Alpino
- Triplet Biotechnology Solution, São Paulo, SP, Brazil
- POSMAT - Post-Graduate Program in Materials Science and Technology, School of Sciences, São Paulo State University (UNESP), Bauru, SP, Brazil
| | | | | | - Fábio Correia Sampaio
- Stricto Sensu Post-Graduate Program in Dentistry, Department of Clinical and Community Dentistry, Health Science Center, Federal University of Paraiba (UFPB), João Pessoa, PB, Brazil.
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Né YGDS, Souza-Monteiro D, Frazão DR, Alvarenga MOP, Aragão WAB, Fagundes NF, de Souza-Rodrigues RD, Lima RR. Treatment for dental erosion: a systematic review of in vitro studies. PeerJ 2022; 10:e13864. [PMID: 36389398 PMCID: PMC9651041 DOI: 10.7717/peerj.13864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 07/18/2022] [Indexed: 11/11/2022] Open
Abstract
Background Dental erosion is a chemical loss of the mineralized dental tissue caused by exposure to nonbacterial acids. Different treatment protocols have been adopted with the use of fluoride compounds to promote the formation of a layer of mineral precipitation in eroded lesions. Aim This systematic review aimed to evaluate the main treatments for dental erosion. Methodology This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and recorded in the Open Science Framework database (OSF) under DOI 10.17605/OSF.IO/XMFNZ. The searches were conducted in six electronic databases (Pubmed, Embase, Web of Science, Cochrane, Scopus, Lilacs) and two grey literature sources (Google Scholar and OpenGrey). The eligibility criteria included in vitro studies that evaluated eroded teeth under treatment with some topical agent. Risk of bias assessment and qualitative synthesis were performed using the Cochrane collaboration's tool for assessing risk of bias modified for in vitro studies. Results A total of 522 studies were identified, and only four studies that fulfilled our eligibility criteria were included in this review. Among these studies, three were considered to have a low risk of bias, and one to have a high risk of bias. Two studies evaluated the anti-erosion effect of fluoride toothpaste, and the other two assessed the action of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) on the surface of human teeth. Among the products analyzed, CPP-ACP was the only one that promoted a significant increase in enamel microhardness and reduced tooth wear. Conclusion Based on the in vitro studies included in this review, there was no anti-erosion effect after using different fluoride toothpaste. However, it should be considered that one of these studies presented a high risk of bias. On the other hand, studies with CPP-ACP showed anti-erosion efficacy when applied before or after erosive wear.
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Affiliation(s)
- Yago Gecy de Sousa Né
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Deiweson Souza-Monteiro
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Deborah Ribeiro Frazão
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - María Olimpia Paz Alvarenga
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Walessa Alana Bragança Aragão
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | | | - Renata Duarte de Souza-Rodrigues
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
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In vitro evaluation of the effects of different particle types in toothpastes on the efficacy against enamel erosion and wear. Sci Rep 2022; 12:9627. [PMID: 35688889 PMCID: PMC9187630 DOI: 10.1038/s41598-022-13922-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 05/16/2022] [Indexed: 11/08/2022] Open
Abstract
The effects of the particle fraction in toothpastes in the context of erosion and erosive tooth wear has not been fully elucidated. Thus, aim of this study was to investigate experimental toothpastes, each with one specific particle type. Toothpastes with seven different types of silica or alumina were prepared as slurry either with or without active ingredients (NaF or F/Sn). Human enamel samples were exposed to a cyclic erosion/abrasion model, and were either treated with the respective slurries only or additionally brushed in a brushing machine. Tissue loss was profilometrically monitored. After treatment with slurries without active ingredients or with NaF, tissue loss increased significantly within groups over time (p < 0.001 each). At the end of the trial, there were minor differences between groups (not exceeding 10-20%; p > 0.05 for most comparisons). After treatment with the F/Sn slurries, tissue loss stagnated completely over time, with the exception of one silica type and alumina, but both still reduced tissue loss by 40-50% (compared to control p < 0.001 each). Relative to the type of the active ingredient, the particle type seems to be a secondary factor for the efficacy of toothpastes on erosion and erosive tooth wear in enamel.
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Abrasion Behavior of Different Charcoal Toothpastes on Human Dentin When Using Electric Toothbrushes. Dent J (Basel) 2022; 10:dj10030046. [PMID: 35323248 PMCID: PMC8947482 DOI: 10.3390/dj10030046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 12/10/2022] Open
Abstract
The aim of this study was to investigate abrasion on human dentin after brushing with activated charcoal toothpastes. A self-designed brushing machine was used to brush five groups (Group A: Water, Group B: Sensodyne Pro Schmelz, Group C: Splat Blackwood, Group D: Curaprox Black is White, and Group E: Prokudent Black Brilliant) with electrically powered toothbrushes for 4 h. The abrasive dentin wear was calculated using profilometry data. Furthermore, thermogravimetric analyses and scanning electron microscopy were used to analyze the composition of the toothpastes. Mean dentin loss by brushing were (71 ± 28) µm (Splat Blackwood), (44 ± 16) µm (Curaprox Black is White), (38 ± 13) µm (Prokudent Black Brilliant), (28 ± 14) µm (Sensodyne Pro Schmelz), and (28 ± 13) µm (Water). Groups A/B/D/E and group C each lie in one subset, which is statistically different from the other subset according to a post hoc Tukey test (p = 0.05). Within the limitations, it can be concluded that the content of activated charcoal in charcoal toothpastes had little influence on the observed abrasive behavior, although one of the charcoal toothpastes showed the highest abrasion on dentin.
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Zanatta RF, Ávila DMDS, Maia MM, Viana ÍEL, Scaramucci T, Torres CRG, Borges AB. Protection of calcium silicate/sodium phosphate/fluoride toothpaste with serum on enamel and dentin erosive wear. J Appl Oral Sci 2021; 29:e20210081. [PMID: 34614120 PMCID: PMC8523098 DOI: 10.1590/1678-7757-2021-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 06/29/2021] [Indexed: 11/24/2022] Open
Abstract
Objective To evaluate the effect of a toothpaste containing calcium silicate/sodium phosphate/fluoride associated or not to the boost serum (BS) against erosive tooth wear (ETW) on enamel and dentin. Methodology Bovine enamel and dentin specimens were subjected to an erosion-abrasion cycling model (1% citric acid - pH 3.6 -2 min / artificial saliva – 60 min, 4×/day, 5 days). Toothbrushing was performed for 15 s (2 min exposed to slurry), 2×/day, with the toothpastes (n=10): control without fluoride (Weleda), Arg/Ca/MFP (Colgate Pro-Relief), Si/PO4/MFP (Regenerate-Unilever), and Si/PO4/MFP/BS (Si/PO4/MFP with dual BS – Advanced Enamel Serum-Unilever). The effect of treatments on the eroded tissues was assessed by surface microhardness in the first day, and surface loss (SL) resulting from ETW was evaluated by profilometry (μm) after three and five days. Additional dentin specimens (n=5/group) were subjected to 20,000 brushing cycles to verify the abrasivity of the toothpastes. Data were subjected to ANOVA and correlation tests (5%). Results For enamel, no difference in microhardness was observed among the treated groups, and similar SL was obtained after 5 days. For dentin, Si/PO4/MFP/BS resulted in higher microhardness values, but none of the groups presented significantly lower SL than the control. There was no significant correlation between SL and abrasiveness. Conclusion The calcium silicate/sodium phosphate toothpaste and serum increased microhardness of eroded dentin, but they did not significantly reduce enamel and dentin loss compared to the non-fluoride control toothpaste. The abrasiveness of the toothpastes could not predict their effect on ETW.
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Affiliation(s)
- Rayssa Ferreira Zanatta
- Universidade de Taubaté - UNITAU, Departamento de Odontologia Restauradora, Taubaté, São Paulo, Brasil
| | - Daniele Mara da Silva Ávila
- Universidade Estadual Paulista - UNESP, Instituto de Ciência e Tecnologia de São José dos Campos, Departamento de Odontologia Restauradora, São Paulo, Brasil
| | - Morgana Menezes Maia
- Universidade Estadual Paulista - UNESP, Instituto de Ciência e Tecnologia de São José dos Campos, Departamento de Odontologia Restauradora, São Paulo, Brasil
| | - Ítallo Emídio Lira Viana
- Universidade de São Paulo, Faculdade de Odontologia - FOUSP, Departamento de Odontologia Restauradora, São Paulo, Brasil
| | - Tais Scaramucci
- Universidade de São Paulo, Faculdade de Odontologia - FOUSP, Departamento de Odontologia Restauradora, São Paulo, Brasil
| | - Carlos Rocha Gomes Torres
- Universidade Estadual Paulista - UNESP, Instituto de Ciência e Tecnologia de São José dos Campos, Departamento de Odontologia Restauradora, São Paulo, Brasil
| | - Alessandra Bühler Borges
- Universidade Estadual Paulista - UNESP, Instituto de Ciência e Tecnologia de São José dos Campos, Departamento de Odontologia Restauradora, São Paulo, Brasil
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11
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Pereira CKK, Leal IC, Nottingham TAFR, S Pereira SL, Lima DLF, Passos VF. In vitro effect of toothpaste with low fluoride combined with sodium trimetaphosphate on dentine erosion. Eur Arch Paediatr Dent 2021; 22:843-849. [PMID: 34056698 DOI: 10.1007/s40368-021-00636-z] [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: 11/10/2020] [Accepted: 05/21/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE This study sought to evaluate in vitro the effect of a dentifrice containing sodium trimetaphosphate (TMP) combined or not with low fluoride (500 ppm NaF) on dentine erosion of intrinsic origin. METHODS Human root dentine blocks were selected based on surface microhardness and randomly allocated into five groups (n = 12): negative control (0 ppm F; no TMP); F500 (500 ppm NaF); F1500 (1500 ppm NaF-positive control); TMP (1% TMP); and F + TMP (500 ppm NaF + 1% TMP). The blocks were submitted to erosion cycles (3 ×/day) for 3 days (0.01 M HCl, pH 1.5-30 s), treatment (1 min-1:3 p/p dentifrice/distilled water) and remineralization (artificial saliva/120 min). Dentine alterations were determined according to the percentage of microhardness loss (%HL), surface loss (SL) and surface analysis by scanning electron microscopy. The data were analyzed using one-way ANOVA (p < 0.05). RESULTS The values of SL and %HL in each group were, respectively: negative control (1.36 ± 0.36; 57.29 ± 14.14), F500 (1.46 ± 0.28; 65.66 ± 5.11), F1500 (1.52 ± 0.36; 61.66 ± 5.15), TMP (1.45 ± 0.45; 62.08 ± 3.83) and F + TMP (1.38 ± 0.42; 63.38 ± 6.47). There was no statistically significant difference in all the parameters (p = 0.873 and p = 0.152). CONCLUSION The dentifrices containing TMP combined or not with fluoride were not able to prevent dentine erosion.
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Affiliation(s)
| | - I C Leal
- Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado s/nº, Fortaleza, Ceará, CEP 60430-350, Brazil
| | | | | | - D L F Lima
- University of Fortaleza, Fortaleza, Ceará, Brazil
| | - V F Passos
- Department of Restorative Dentistry, Federal University of Ceará, Rua Monsenhor Furtado s/nº, Fortaleza, Ceará, CEP 60430-350, Brazil.
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12
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Fernandes NLS, Juliellen LDC, Andressa FBDO, D'Alpino HPP, Sampaio CF. Resistance against Erosive Challenge of Dental Enamel Treated with 1,450-PPM Fluoride Toothpastes Containing Different Biomimetic Compounds. Eur J Dent 2021; 15:433-439. [PMID: 34041726 PMCID: PMC8382457 DOI: 10.1055/s-0041-1725576] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVES This in vitro study aimed to characterize the superficial and subsurface morphology of dental enamel treated with fluoridated gels containing different biomimetic compounds after erosive challenge. MATERIALS AND METHODS Bovine incisor teeth were sectioned to obtain enamel blocks (4 mm × 4 mm × 6 mm; n = 5) that were demineralized to create an artificial caries lesion and treated by pH cycling interspersed with exposure to fluoridated toothpaste slurries under agitation. During pH cycling (demineralization and remineralization for 2 and 22 hours, respectively) for 6 days, the enamel blocks were exposed to toothpaste slurries under agitation with one of the dental gels: Regenerate Enamel Science (NR-5 technology), Daily Regenerator Dental Clean (REFIX technology), and Sensodyne Repair & Protect (Novamin technology). The enamel blocks were subjected to an erosive challenge, immersed in 50% citric acid for 2 minutes, and then washed with plenty of distilled water. The surface and cross-sectional micromorphology were assessed using scanning electron microscope (SEM). The elemental analyses (weight percentage) were determined with an energy-dispersive X-ray spectroscopy (EDS). RESULTS Enamel treated with the product containing REFIX technology presented a smoother surface morphology compared to the other treatments. The higher resistance to the erosive challenge can be attributed to a silicon-enriched mineral layer formed on the enamel induced by the REFIX-based toothpaste. This was not observed in the specimens treated with the other technology-containing toothpastes. CONCLUSION The REFIX technology seemed to be the most promising compared to the Novamin and NR-5 technologies. In addition to forming a surface mineralized layer, the enamel treated with REFIX technology associated with the pH cycling resisted a subsequent erosive challenge.
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Affiliation(s)
- Nayanna L S Fernandes
- Programa de Pós-Graduação Stricto sensu em Odontologia, Universidade Federal da Paraíba, PB, Brazil
| | - L da Cunha Juliellen
- Department of Morphology, Federal University of Paraíba, Centro de Ciências da Saúde, Brazil
| | | | - H P Paulo D'Alpino
- Faculdade de Ciências de Bauru, Departamento de Física, Universidade Estadual Paulista, Bauru, Sao Paolo, Brazil
| | - C Fábio Sampaio
- Programa de Pós-Graduação Stricto sensu em Odontologia, Universidade Federal da Paraíba, PB, Brazil.,Departamento de Clínica e Odontologia Social, Universidade Federal da Paraíba, Centro de Ciências da Saúde, Brazil
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13
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Lopes RM, Scaramucci T, Walker CL, Feitosa SA, Aranha ACC. In situ evaluation of desensitizing toothpastes for protecting against erosive tooth wear and its characterization. Clin Oral Investig 2021; 25:6857-6870. [PMID: 33977386 DOI: 10.1007/s00784-021-03975-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 05/03/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This five-phase, single-blind, crossover in situ trial evaluated the effects of desensitizing or anti-erosive toothpastes on dentin erosive wear and tubule occlusion. MATERIALS AND METHODS Some characteristics such as relative dentin abrasivity (RDA), viscosity (V), cytotoxicity, and fluoride and calcium (Ca) availability of the toothpastes were also tested. Samples were positioned on removable intraoral appliances from 15 volunteers (n=4), according to the groups, C-control (0 ppm fluoride), F-sodium monofluorophosphate (MFP), A-MFP and arginine+calcium carbonate, CSP-calcium sodium phosphosilicate, and CS-MFP and calcium silicate+sodium phosphate. Erosion-abrasion cycling was performed (1% citric acid, 2min, 6×/day; toothbrushing, 5s, 2×/day). Surface loss (SL) was evaluated by optical profilometry. Environmental scanning electron microscopy images (ESEM) counted the number of open dentin tubules (ODTs). Data were statistically analyzed (α=0.05). RESULTS There were no significant differences in SL among groups (p=0.468). The ODT for CSP, CS, and A groups were significantly lower than the control. CSP and CS presented significantly less ODT than F, but they did not significantly differ from A. F and CS were more abrasive than all the other toothpastes; CSP was more abrasive than A, and C was the least abrasive. CSP presented higher V (p<0.05). All toothpastes presented lower cell viability than the control without toothpaste exposure. F and A presented significantly higher values of F- (p<0.05). All fluoride toothpastes had similar amount of Ca, differing from the control (p<0.05). CONCLUSION Although the toothpastes caused similar degree of erosive wear, CSP and CS were able to occlude the dentin tubules. CLINICAL RELEVANCE Desensitizing toothpastes containing calcium, sodium, phosphate, and silicate could be a suitable option for treating dentin hypersensitivity.
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Affiliation(s)
- Raquel Marianna Lopes
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227 Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - T Scaramucci
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227 Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - Clandler L Walker
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, 1121 Michigan Street, Indianapolis, IN, 46202-5186, USA
| | - S A Feitosa
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, 1121 Michigan Street, Indianapolis, IN, 46202-5186, USA
| | - Ana Cecilia Correa Aranha
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227 Cidade Universitária, São Paulo, SP, 05508-000, Brazil. .,School of Dentistry, Special Laboratory of Lasers in Dentistry (LELO), University of São Paulo, Avenida Professor Lineu Prestes, 2226 - Cidade Universitária, Butantã, São Paulo, Brazil.
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14
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Viana ÍEL, Weiss GS, Sakae LO, Niemeyer SH, Borges AB, Scaramucci T. Activated charcoal toothpastes do not increase erosive tooth wear. J Dent 2021; 109:103677. [PMID: 33895239 DOI: 10.1016/j.jdent.2021.103677] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/01/2021] [Accepted: 04/19/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES To assess the effect of activated charcoal toothpastes on enamel and dentin erosive wear. METHODS Ninety enamel and dentin slabs were randomly distributed into 9 experimental groups (n = 10/substrate): Artificial saliva (negative control); Elmex Caries (EXC - 1400 ppm F- as AmF, reference toothpaste without charcoal); Colgate Luminous White Activated Charcoal (CLW - 1000 ppm F- as MFP); Colgate Natural Extracts (CNE - 1450 ppm F- as NaF); Oral-B 3D White Mineral Clean (OMC - 1100 ppm F- as NaF); Curaprox Black is White (CBW - 950 ppm F- as MFP); Bianco Carbon (BIC - no F-); Natural Suavetex (NSX - no F-); Oralgen Nupearl Advanced (ONA - no F-). Specimens were submitted to a 5-day erosion-toothbrushing abrasion cycling. Surface loss (SL) was determined with an optical profilometer. pH and concentration of available fluoride in the slurries were also assessed. Data were statistically analyzed (α = 0.05). RESULTS For both substrates, CBW, CNE and EXC had significantly lower SL values than the control. CLW and OMC promoted significantly less dentin wear than the control. All the other groups did not differ significantly from the control. There was a strong negative correlation between SL and concentration of fluoride in the slurries for enamel (r = -0.77) and dentin (r = -0.91), and a strong positive correlation (r = 0.77) between enamel SL and pH. CONCLUSIONS For both substrates, none of the activated charcoal-based toothpastes resulted in higher SL than brushing with artificial saliva. Only two of the charcoal toothpastes and the reference toothpaste were able to provide further protection against SL. CLINICAL SIGNIFICANCE Activated charcoal-containing toothpastes are becoming popular, despite the absence of evidence supporting their safety for use by individuals with erosive tooth wear. These products did not pose an additional risk for these subjects. However, it would be preferable to use products that exhibits further protective effect.
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Affiliation(s)
- Ítallo Emídio Lira Viana
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, 2227 Professor Lineu Prestes Avenue, 05508-000, São Paulo, SP, Brazil.
| | - Guilherme Stangler Weiss
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, 2227 Professor Lineu Prestes Avenue, 05508-000, São Paulo, SP, Brazil.
| | - Letícia Oba Sakae
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, 2227 Professor Lineu Prestes Avenue, 05508-000, São Paulo, SP, Brazil.
| | - Samira Helena Niemeyer
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland.
| | - Alessandra Bühler Borges
- Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University, 777 Engenheiro Francisco José Longo Avenue, 12245-000, São José dos Campos, SP, Brazil.
| | - Taís Scaramucci
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, 2227 Professor Lineu Prestes Avenue, 05508-000, São Paulo, SP, Brazil.
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15
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Buzalaf MAR, Levy FM, Gomes B, Valle AD, Trevizol JS, Magalhães AC, Joiner A. Protective effect of calcium silicate toothpaste on enamel erosion and abrasion in vitro. Heliyon 2021; 7:e06741. [PMID: 33912715 PMCID: PMC8066351 DOI: 10.1016/j.heliyon.2021.e06741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/19/2021] [Accepted: 04/01/2021] [Indexed: 01/08/2023] Open
Abstract
Objectives To compare in vitro the effect of a toothpaste containing fluoride (F), calcium silicate (CaSi) and sodium phosphate salts to conventional toothpaste (NaF) on human enamel specimens submitted to erosive and abrasive challenges. Methods 48 sound and 48 enamel samples pre-treated with 1% citric acid were divided into 4 groups (n = 12): Group 1- Non-fluoride toothpaste; Group 2- NaF toothpaste (1450 ppmF); Group 3- CaSi toothpaste (1450 ppmF; MFP); Group 4- Erosion only. The samples were subjected to pH cycling (3 cycles/day; 90s; 1% citric acid, pH 3.6) and to abrasion for 7 days. After the 1st and the last cycle, they were submitted to abrasion (15s, 1.5N load), using a brushing machine, soft toothbrush and toothpaste slurry (1:3; 15ml/sample) and then immersed in the slurry for 45s. Samples were immersed in artificial saliva between the challenges. Enamel loss was evaluated using profilometry on days 3 and 7. Data were analysed by ANOVA and Tukey's test (p < 0.05). Results For sound enamel at baseline, mean (±SD) enamel loss (μm) for groups 1-4 on day 3 was 2.15 ± 0.35a, 1.20 ± 0.22b, 0.95 ± 0.19b and 1.98 ± 0.32a; on day 7 was 3.05 ± 0.40a, 2.07 ± 0.32b, 1.36 ± 0.33c and 3.69 ± 0.27d respectively. For acid-softened enamel at baseline, enamel loss on day 3 was 3.16 ± 0.19a, 2.17 ± 0.14b, 1.70 ± 0.11c and 3.04 ± 0.19a; on day 7 was 3.92 ± 0.25a, 3.07 ± 0.13b, 2.09 ± 0.15c and 3.87 ± 0.25a respectively. Conclusions Both F toothpastes led to significantly higher enamel protection from short-term erosion and abrasion in comparison to the non-F toothpaste and erosion only. In the longer term, CaSi toothpaste conferred significantly higher protection than NaF toothpaste. Clinical significance The results showed that for the longer term the CaSi toothpaste provided significantly higher protection than the NaF toothpaste, which indicates a good potential of the former to help prevent erosive tooth wear.
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Affiliation(s)
- Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil
- Corresponding author.
| | - Flávia Mauad Levy
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil
| | - Beatriz Gomes
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil
| | - Aline Dionizio Valle
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil
| | - Juliana Sanches Trevizol
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil
| | - Ana Carolina Magalhães
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, 17012-901, Bauru, SP, Brazil
| | - Andrew Joiner
- Unilever Oral Care, Quarry Road East, Bebington, Wirral, CH63 3JW, United Kingdom
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16
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El-Damanhoury HM, Elsahn NA, Sheela S, Bastaty T. In Vitro Enamel Remineralization Efficacy of Calcium Silicate-Sodium Phosphate-Fluoride Salts versus NovaMin Bioactive Glass, Following Tooth Whitening. Eur J Dent 2021; 15:515-522. [PMID: 33622008 PMCID: PMC8382453 DOI: 10.1055/s-0040-1722484] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives
This study aimed to evaluate the effect of in-office bleaching on the enamel surface and the efficacy of calcium silicate-sodium phosphate-fluoride salt (CS) and NovaMin bioactive glass (NM) dentifrice in remineralizing bleached enamel.
Materials and Methods
Forty extracted premolars were sectioned mesio-distally, and the facial and lingual enamel were flattened and polished. The samples were equally divided into nonbleached and bleached with 38% hydrogen peroxide (HP). Each group was further divided according to the remineralization protocol (
n
= 10); no remineralization treatment (nontreated), CS, or NM, applied for 3 minutes two times/day for 7 days, or CS combined with NR-5 boosting serum (CS+NR-5) applied for 3 minutes once/day for 3 days. The average Knoop hardness number (KHN) and surface roughness (utilizing atomic force microscopy) were measured. Surface topography/elemental analysis was analyzed by using scanning electron microscopy/energy dispersive X-ray analysis. All the tests were performed at baseline, after bleaching, and following each remineralization protocol. Data were statistically analyzed by two-way analysis of variance and Bonferroni post hoc multiple comparison tests (α = 0.05).
Results
HP significantly reduced KHN and increased roughness (
p
< 0.05). All remineralization materials increased the hardness and reduced the surface roughness after bleaching except NM, which demonstrated significantly increased roughness (
p
< 0.05). Ca/P ratio decreased after bleaching (
p < 0.05
), and following treatment, CS and CS+NR-5 exhibited higher remineralization capacity in comparison to NM (
p
< 0.05).
Conclusion
Although none of the material tested was able to reverse the negative effect of high-concentration in-office HP on enamel completely, the remineralization efficacy of CS and CS+NR-5 was superior to that of NM.
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Affiliation(s)
- Hatem M El-Damanhoury
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Nesrine A Elsahn
- Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman, United Arab Emirates.,Department of Operative Dentistry, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Soumya Sheela
- Dental Biomaterials Research Group, Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Talal Bastaty
- College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
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17
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Moser C, Baumann T, Lussi A, Carvalho TS. Is the Erosion-Protective Effect Still Maintained when Tin Concentrations Are Reduced in Mouth Rinse Solutions? Caries Res 2021; 55:108-113. [PMID: 33556950 DOI: 10.1159/000513059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 11/15/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE As a preventive measure, tin (Sn2+)-containing products have a great potential to prevent enamel surface loss during erosive challenges, but adverse effects of high Sn2+ concentrations, such as astringent feeling of the teeth, are reported. Therefore, the main aim of this in vitro study was to develop a solution with lower Sn2+ concentrations that can still prevent dental erosion. METHODS A total of 162 enamel specimens were prepared from human premolars, which were selected from a pool of extracted teeth. The specimens were randomly distributed to 9 groups (each group n = 18 enamel specimens) according to the different test treatments: a humid chamber (no treatment) as the negative control, the commercial Elmex® Erosion Protection mouth rinse as the positive control, and 7 solutions either with lower Sn2+ concentrations and/or containing flavoring. The experiment included 4 cycles, consisting of pellicle formation by incubating the specimens with 200 μL of human saliva at 37°C for 1 h, then placing the specimens in the treatment for 2 min (60 mL, 30°C, shaking at 70 rpm), and later submitting them to an erosive challenge for 1 min in citric acid (60 mL 1%, pH 3.6, 30°C). Surface hardness was measured with a Vickers diamond and surface reflection intensity was measured with a reflectometer. RESULTS The control group performed significantly worse than all other solutions containing Sn2+. In general, there were no significant differences among the Sn2+-containing groups, and they presented similar protective effects on the enamel even when Sn2+ concentrations were reduced and flavorings were added. CONCLUSION Sn2+ concentrations in mouth rinses may be lowered to 200 ppm without compromising the anti-erosive properties of the solution.
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Affiliation(s)
- Corina Moser
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland
| | - Tommy Baumann
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland
| | - Adrian Lussi
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland
| | - Thiago Saads Carvalho
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Bern, Switzerland,
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18
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Leal IDC, Costa WKDF, Passos VF. Fluoride dentifrice containing calcium silicate and sodium phosphate salts on dental erosion: In vitro study. Arch Oral Biol 2020; 118:104857. [PMID: 32768713 DOI: 10.1016/j.archoralbio.2020.104857] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To investigate the effect of a commercial dentifrice containing fluoride, calcium silicate, and sodium phosphate and its dual phase gel serum to prevent erosive tooth wear in enamel. METHODS Forty-eight enamel specimens were selected by surface hardness and randomly allocated into 4 groups (n = 12) according to the commercial toothpastes: non-fluoridated (NF); 1100 ppm Stannous fluoride (SnF2); 1450 ppm MFP + calcium silicate + sodium phosphate (CSSP); CSSP + dual-phase gel (CSSP + Serum). Cyclic experiments were repeated 3x / day for five days, including an erosive challenge with 0.05 M citric acid (pH 3.75 for 30 s), treatment with toothpaste slurries (1 min), and remineralization with artificial saliva (pH 7.0 for 60 min). Surface alterations were determined by stylus profilometry (μm) and scanning electron microscopy (SEM). Data were analyzed by ANOVA and Tukey tests (α = 0.05). RESULTS SnF2, CSSP and CSSP + Serum significantly reduce surface wear compared to NF treated group. Besides, there were no significant differences among SnF2, CSSP and CSSP + Serum. In micrographs of both groups treated with CSSP, the surface demonstrates the presence of a protective layer as a deposition of particles. CONCLUSIONS Dentifrice containing calcium silicate and sodium phosphate with or without the dual-phase gel was able to prevent the erosive tooth wear.
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Affiliation(s)
- Isabelly de Carvalho Leal
- Federal University of Ceará, Department of Clinical Dentistry, Rua Monsenhor Furtado, s/nº, Fortaleza, Ceará, Brazil.
| | | | - Vanara Florêncio Passos
- Federal University of Ceará, Department of Restorative Dentistry, Rua Monsenhor Furtado, s/nº, Fortaleza, Ceará, CEP 60430-350, Brazil.
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19
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Lima LCD, Viana ÍEL, Paz SLPD, Bezerra SJC, João-Souza SH, Carvalho TS, Scaramucci T. Role of desensitizing/whitening dentifrices in enamel wear. J Dent 2020; 99:103390. [PMID: 32492504 DOI: 10.1016/j.jdent.2020.103390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES To analyze the impact of desensitizing (D) and/or whitening (W) dentifrices on erosion and erosion-abrasion. METHODS Enamel specimens were allocated into 10 groups (n = 20): 1. Artificial saliva (control); 2. Sensodyne Repair&Protect (SRP-D); 3. Sensodyne Repair&Protect Whitening (SRP-W); 4. Colgate Sensitive Pro-Relief (CSPR-D); 5. Colgate Sensitive Pro-Relief Real White (CSPRR-W); 6. Colgate Total 12 (CT); 7. Colgate Total 12 Professional Whitening (CTP-W); 8. Sensodyne True White (ST-W); 9. Curaprox Black is White (CB-W); 10. Oral-B 3D White Perfection (OB3D-W). For abrasion (n = 10), 30,000 brushing strokes were performed and surface roughness (SR) was evaluated. Erosion-abrasion (n = 10) consisted of 1 % citric acid (2 min), artificial saliva (60 min); 6×/day; 5 days. Toothbrushing was carried out 2×/day (45 strokes). Surface loss (SL) was determined with an optical profilometer. Data were statistically analyzed (α = 0.05). RESULTS Relative to SR, only OB3D-W had a significantly rougher surface than the control (p = 0.014). SRP-D, CSPR-D and ST-W showed no difference from the baseline. High SL was observed for ST-W, OB3D-W and CTP-W, without significant differences from the control. CT showed the lowest SL, not differing from SRP-D and SRP-W. There was a weak negative correlation between SL and concentration of free fluoride in the slurries, SL and SR, and SL and pH, all p > 0.05. CONCLUSIONS Only one dentifrice increased surface roughness of enamel to a higher degree than brushing with saliva. Brushing with the test dentifrices did not cause higher enamel erosive wear than brushing with saliva. CLINICAL SIGNIFICANCE This study enhances our knowledge on the effect of desensitizing and whitening dentifrices, indicating that they do not worsen enamel loss due to abrasion and they might be a safe option for individuals with erosive tooth wear.
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Affiliation(s)
- Leonardo Custódio de Lima
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil.
| | - Ítallo Emídio Lira Viana
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil.
| | - Sara Laís Pereira da Paz
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil.
| | - Sávio José Cardoso Bezerra
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil.
| | - Samira Helena João-Souza
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland.
| | - Thiago Saads Carvalho
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland.
| | - Taís Scaramucci
- Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil.
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Tomaz PLS, Sousa LAD, Aguiar KFD, Oliveira TDS, Matochek MHM, Polassi MR, D'Alpino PHP. Effects of 1450-ppm Fluoride-containing Toothpastes Associated with Boosters on the Enamel Remineralization and Surface Roughness after Cariogenic Challenge. Eur J Dent 2020; 14:161-170. [PMID: 32168543 PMCID: PMC7069749 DOI: 10.1055/s-0040-1705072] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES This in vitro study investigated the remineralization potential of 1450 ppm, fluoride-containing toothpastes containing different active remineralization agents after cariogenic challenge with pH cycling. The enamel surface roughness after brushing and the chemical and physical characteristics of the toothpastes tested were also analyzed. MATERIALS AND METHODS Fifty-six bovine enamel blocks were obtained (4 × 4 × 6 mm) and divided into three thirds: intact (untreated), demineralized (artificial caries lesion), and treated (caries lesion, pH cycling, and brushing with dentifrices). Seven commercially available fluoride toothpastes (1450 ppm F): three with anti-erosion claims (Candida Professional [CPP], Colgate Total 12 Daily Repair [CDR], Regenerate Enamel Science [RES]); three with desensitizing claims (Bianco Pro Clinical [BPP], Elmex Sensitive [ESS], and Regenerador Diário DentalClean [RDC]); and one standard regular-fluoride toothpaste Colgate Total 12 (CTT) were selected. During pH cycling (demineralization 6 h/remineralization 18 h) for 7 days, the treated third was brushed with the different dentifrices for 10 minutes in a brushing machine before immersion in a remineralizing solution. The Knoop hardness (25 g, 10 second of the surface, and longitudinal section were then evaluated at eight depths (10 to 330 μm). Mean and percentage of surface hardness recovery (% SHR) were calculated. Surface enamel roughness (Ra) was also evaluated. The pH, %weight of particles, zeta potential, and polydispersity index of toothpaste slurries were also evaluated. STATISTICAL ANALYSIS Data were statistically analyzed (ANOVA/Tukey, 5%). RESULTS The %SHR of CPP was significantly lower than the others (p < 0.05). The enamel subsurface was more effectively remineralized when treated with BPP, ESS, and RDC. The surface roughness was higher when the demineralized third was treated with CTT, RDC, and RES and after the cariogenic challenge (p < 0.05). For some of the products tested, there was no relationship between surface remineralization and subsurface remineralization. Although toothpastes CPP and RDC present the lowest %SHR means, both products effectively remineralize within the subsurface carious lesion. Regression analysis demonstrated no strong correlations of the enamel surface roughness with the chemical and physical parameters. CONCLUSIONS Most but not all the fluoride toothpastes were able to remineralize the enamel surface. No specific chemical or physical parameter alone correlated with the surface roughness.
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Affiliation(s)
- Pedro Luiz Santos Tomaz
- Biotechnology and Innovation in Health Program, Universidade Anhanguera de São Paulo (UNIAN-SP), São Paulo, São Paulo, Brazil
| | - Letícia Almeida de Sousa
- Biotechnology and Innovation in Health Program, Universidade Anhanguera de São Paulo (UNIAN-SP), São Paulo, São Paulo, Brazil
| | - Kayanne Freire de Aguiar
- Biotechnology and Innovation in Health Program, Universidade Anhanguera de São Paulo (UNIAN-SP), São Paulo, São Paulo, Brazil
| | - Thales de Sá Oliveira
- Biotechnology and Innovation in Health Program, Universidade Anhanguera de São Paulo (UNIAN-SP), São Paulo, São Paulo, Brazil
| | - Marcelo Henrick Maia Matochek
- Biotechnology and Innovation in Health Program, Universidade Anhanguera de São Paulo (UNIAN-SP), São Paulo, São Paulo, Brazil
| | - Mackeler Ramos Polassi
- Biotechnology and Innovation in Health Program, Universidade Anhanguera de São Paulo (UNIAN-SP), São Paulo, São Paulo, Brazil
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Toothpaste factors related to dentine tubule occlusion and dentine protection against erosion and abrasion. Clin Oral Investig 2019; 24:2051-2060. [PMID: 31624923 DOI: 10.1007/s00784-019-03069-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/27/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To investigate the effect of toothpastes on dentine surface loss and tubule occlusion, and the association of toothpaste-related factors to each of the outcomes. MATERIALS AND METHODS One hundred and sixty human dentine specimens were randomly distributed into 10 groups, according to different toothpastes. The specimens were submitted to artificial saliva (60 min), citric acid (3 min), and brushing abrasion (25 s; totalizing 2 min in toothpaste slurries). This was repeated five times and two outcome variables were analyzed: dentine surface loss (dSL; μm) and tubule occlusion by measurement of the total area of open tubules (Area-OT; μm2). Data were analyzed with Kruskal-Wallis and Mann-Whitney tests (α = 0.05); bivariate and multivariate regressions were used to model the association of the chemical (pH, concentration of F-, Ca2+, and PO43- and presence of Sn2+) and physical (% weight of solid particles, particle size, and wettability) factors of the toothpastes to both outcome variables. RESULTS Toothpastes caused different degrees of dSL and did not differ in Area-OT. All chemical and physical factors, except the presence of Sn2+, were associated with dSL (p < 0.001). Area-OT was associated only with the presence of Sn2+ (p = 0.033). CONCLUSION Greater dSL was associated with lower pH, lower concentration of F-, higher concentration of Ca2+ and PO43-, greater % weight of solid particles, smaller particle size, and lesser wettability, whereas tubule occlusion was associated with the presence of Sn2+. CLINICAL RELEVANCE Depending on their chemical and physical composition, toothpastes will cause different degrees of dentine tubule occlusion and dentine surface loss. This could, in turn, modulate dentine hypersensitivity.
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João-Souza SH, Scaramucci T, Bühler Borges A, Lussi A, Saads Carvalho T, Corrêa Aranha AC. Influence of desensitizing and anti-erosive toothpastes on dentine permeability: An in vitro study. J Dent 2019; 89:103176. [PMID: 31351084 DOI: 10.1016/j.jdent.2019.07.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE This study analyzed the effect of desensitizing and/or anti-erosive toothpastes on dentine permeability. METHODS One-mm dentin discs were prepared from human molars and exposed to EDTA solution (5 min, 17%). Initial dentine permeability was measured, under constant pressure. Specimens were randomly allocated into 10 groups: four anti-erosive toothpastes (calcium silicate + sodium phosphate, potassium nitrate, stannous chloride + chitosan, oligopeptide-104); four desensitizing toothpastes (arginine + calcium carbonate, calcium sodium phosphosilicate, strontium acetate, stannous fluoride); and two controls (regular fluoridated toothpaste, and human saliva). They were submitted to a 5-day erosion-abrasion cycling model. Erosion consisted of immersion in citric acid (2 min, 0.3%, natural pH ˜ 2.6, 4x/day), followed by 1 h exposure to human saliva. Specimens were brushed for 15 s (2 N, 45 strokes) with the toothpaste slurries (total exposure time of 2 min). After 5 cycles, the final dentine permeability was determined. Dentine permeability change was calculated as a percentage of the initial hydraulic conductance (%Lp). Data were analyzed with one-way ANOVA and Tukey tests (α=0.05). RESULTS The toothpastes calcium silicate + sodium phosphate and potassium nitrate, showed significant decrease in %Lp, with no difference between them. The regular fluoridated toothpaste also decreased the %Lp, not differing from potassium nitrate. No desensitizing toothpaste showed change in %Lp. Human saliva, oligopeptide-104 and stannous chloride + chitosan presented significant increase in %Lp, without difference between them. CONCLUSION Calcium silicate + sodium phosphate, potassium nitrate, and the regular fluoridated toothpaste decreased dentine permeability, whereas the desensitizing toothpastes tested did not. CLINICAL RELEVANCE Toothpastes had distinct impacts on dentine permeability, which may reflect a variable effect on the treatment of dentine hypersensitivity. Within the limitations of a laboratory-based study, toothpastes with an anti-erosive claim could also be effective in reducing the pain in dentine hypersensitivity.
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Affiliation(s)
- Samira Helena João-Souza
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes 2227, Cidade Universitária, São Paulo, Brazil.
| | - Tais Scaramucci
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes 2227, Cidade Universitária, São Paulo, Brazil.
| | - Alessandra Bühler Borges
- Department of Restorative Dentistry, Institute of Science and Technology, São Paulo State University - UNESP, Av. Eng. Francisco José Longo 777, São José dos Campos, Brazil.
| | - Adrian Lussi
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, Bern, Switzerland.
| | - Thiago Saads Carvalho
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, Bern, Switzerland.
| | - Ana Cecília Corrêa Aranha
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes 2227, Cidade Universitária, São Paulo, Brazil.
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Machado AC, Bezerra SJC, João-Souza SH, Caetano TM, Russo LC, Carvalho TS, Scaramucci T. Using fluoride mouthrinses before or after toothbrushing: effect on erosive tooth wear. Arch Oral Biol 2019; 108:104520. [PMID: 31445424 DOI: 10.1016/j.archoralbio.2019.104520] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/05/2019] [Accepted: 08/08/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES 1. To evaluate the use of fluoridated mouthrinses before or after toothbrushing on erosive tooth wear. 2. To compare the anti-erosive effect of the combination toothpaste and mouthrinse containing fluoride, with or without stannous chloride. DESIGN Enamel and dentin specimens were randomly distributed into groups (n = 10 of each substrate/group): B-brushing, B + R-brushing + rinsing, and R + B-rinsing + brushing. The treatments were performed using a fluoride toothpaste (BF: 1400 ppm fluoride, as amino fluoride-AmF) combined or not with a fluoride mouthrinse (RF: 250 ppm fluoride, as AmF and sodium fluoride-NaF) or fluoride and stannous toothpaste (BF+Sn: 1400 ppm fluoride, as AmF and NaF, 3500 ppm stannous, as stannous chloride-SnCl2 and 0.5% chitosan) combined or not with fluoride and stannous mouthrinse (RF+Sn: 500 ppm fluoride, as AmF and NaF, 800 ppm stannous, as SnCl2). As control, brushing was performed with artificial saliva (BC). Specimens were submitted to a 5-day erosive-abrasive cycling model. Treatments were performed twice daily. Surface loss (SL) was determined by optical profilometry. Data were analyzed by ANOVA and Games-Howell tests (α = 0.05). RESULTS For enamel, RF+BF and RF+Sn+BF+Sn presented significantly lower SL than the control, with RF+BF being significantly lower than RF+Sn+BF+Sn. For dentin, BC had the lowest SL, not differing from BF+Sn+RF+Sn, RF+Sn+BF+Sn and BF. Groups RF+BF and BF+RF showed highest SL, not differing from BF+Sn and BF+Sn. CONCLUSIONS For enamel, the use of a mouthrinse before brushing was able to reduce erosive wear for both fluoride and stannous products. For dentin, the use of stannous-containing products, irrespective of the order of application, presented superior effects.
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Affiliation(s)
- Alana Cristina Machado
- Department of Restorative Dentistry, University of São Paulo School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Sávio José Cardoso Bezerra
- Department of Restorative Dentistry, University of São Paulo School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Samira Helena João-Souza
- Department of Restorative Dentistry, University of São Paulo School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil; Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7 CH-3010, Bern, Switzerland
| | - Tainá Mautone Caetano
- Department of Restorative Dentistry, University of São Paulo School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Luciano Citadini Russo
- Department of Restorative Dentistry, University of São Paulo School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil
| | - Thiago Saads Carvalho
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7 CH-3010, Bern, Switzerland
| | - Taís Scaramucci
- Department of Restorative Dentistry, University of São Paulo School of Dentistry, Av. Prof Lineu Prestes 2227, São Paulo, SP, 05508-000, Brazil.
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Lussi A, Buzalaf MAR, Duangthip D, Anttonen V, Ganss C, João-Souza SH, Baumann T, Carvalho TS. The use of fluoride for the prevention of dental erosion and erosive tooth wear in children and adolescents. Eur Arch Paediatr Dent 2019; 20:517-527. [PMID: 30762211 DOI: 10.1007/s40368-019-00420-0] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 02/11/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Erosive tooth wear (ETW) has gained increasing clinical relevance. It is estimated that worldwide 30-50% of deciduous and 20-45% of permanent teeth are affected. One of the most important nutritional factors causing ETW is the overconsumption of soft drinks, but also patient-related factors like reflux or eating disorders can lead to erosive lesions. Whether acids lead to erosive demineralisation depends on their degree of saturation with respect to tooth mineral at their actual pH. REVIEW Fluoride compounds like sodium or amine fluoride seem to be of limited efficacy against erosion, the main reason for this is the missing biofilm in the erosive process as well as the lower pH of the acids compared to bacterial acids. This means that to achieve some kind of preventive effect it would be necessary to use products with higher fluoride concentration, which is not an appropriate option for small children, and/or to increase the frequency of application. In addition, the fluoride compound plays a role as promising effects were found when fluoride is combined with titanium or stannous ions. TiF4 can cause acid-resistant surface coatings and when Sn2+/F- formulations are applied, Sn is not only found on the surface but is also incorporated into enamel and dentine. Both effects make the tooth surface more resistant against acid demineralisation. Different fluoride-containing vehicles have been tested to prevent erosion/ETW, such as toothpastes, rinses, gels and varnishes. Toothpastes offer some degree of protection, especially Sn2+-containing formulations, but effects of the active ingredients are sometimes counteracted by the presence of abrasives. CONCLUSION Detecting associated factors and influencing them is the main instrument in arresting erosive tooth wear. Additionally, patients at risk for dental erosion should always use an additional fluoride source preferably containing Sn2+.
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Affiliation(s)
- A Lussi
- Department of Restorative, Preventive, and Pediatric Dentistry, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.
| | - M A R Buzalaf
- Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - D Duangthip
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - V Anttonen
- Research Unit of Oral Health Sciences, Department of Cariology, Endodontology and Pediatric Dentistry, University of Oulu, Oulu, Finland.,Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - C Ganss
- Department for Conservative and Preventive Dentistry, Dental Clinic, Justus-Liebig-University Giessen, Giessen, Germany
| | - S H João-Souza
- Department of Restorative, Preventive, and Pediatric Dentistry, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
| | - T Baumann
- Department of Restorative, Preventive, and Pediatric Dentistry, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
| | - T S Carvalho
- Department of Restorative, Preventive, and Pediatric Dentistry, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
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