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Gümüştaş B, Birant S, Şişmanoğlu S. Ultrastructural investigation of the effect of toothpastes containing different remineralizing agents on demineralized enamel. J ESTHET RESTOR DENT 2024; 36:663-672. [PMID: 37846764 DOI: 10.1111/jerd.13150] [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: 04/18/2023] [Revised: 08/17/2023] [Accepted: 10/02/2023] [Indexed: 10/18/2023]
Abstract
OBJECTIVE The present study aimed to evaluate the effect of remineralizing agents on demineralized enamel intended for use as fluoride substitutes or supplements for oral hygiene applications. METHODOLOGY Enamel samples were obtained from 30 bovine teeth. The enamel blocks were stored in 20 mL of demineralization solution for 72 h. They were then brushed with the following toothpaste for the remineralization protocol: NaF, NaF/SnF2 combination, NovaMin, or nano-hydroxyapatite. SEM/EDX examinations and microhardness measurements of the samples were performed to investigate the remineralization efficacy of the studied toothpaste. One-way analysis of variance (ANOVA) with post hoc Tukey's HSD test was used to analyze the change in microhardness values in different remineralization protocols (p < 0.05). RESULTS Differences in the mean remineralization (%RP) and hardness recovery (%HR) were determined between the groups (p < 0.05). Groups 1 and 4 showed significant differences in %RP (p < 0.05). In the SEM/EDX examinations, the samples treated with n-HAp showed an accumulation of crystal deposits on the enamel surface, although at a lower density than those treated with NaF and NaF/SnF2 combination. CONCLUSION The remineralization strategy in toothpaste plays an important role in enamel remineralization. NovaMin-containing toothpaste showed positive effects on the enamel surface with better Ca/P ratio. Toothpastes containing n-HAp triggered less change in the increase of microhardness values compared to other toothpastes. The use of SnF2 in toothpaste in combination with NaF significantly increased the binding of fluoride to demineralized enamel compared to toothpaste containing NaF alone.
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Affiliation(s)
- Burak Gümüştaş
- Department of Restorative Dentistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sinem Birant
- Department of Pedodontics, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Soner Şişmanoğlu
- Department of Restorative Dentistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Rabelo CS, de Oliveira JMR, Leal IDC, Costa FDMLL, Ricardo NMPS, Passos VF. The potential of galactomannan from Caesalpinia ferrea on erosive dentin wear reduction in vitro. Braz Dent J 2023; 34:72-78. [PMID: 38133475 PMCID: PMC10759959 DOI: 10.1590/0103-6440202305508] [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: 04/02/2023] [Accepted: 08/29/2023] [Indexed: 12/23/2023] Open
Abstract
Gels containing juca seed galactomannan (JSG) were evaluated for their potential to prevent the progression of dentin erosive wear in an in vitro study with four experimental groups (n = 9). The treatments included distilled water (DW), 0.05% stannous fluoride (121 ppm F), and 0.5% or 1% JSG. The specimens underwent a cycle (3 times/day) consisting of immersion in 1% citric acid (5 minutes), treatment (5 minutes), and artificial saliva exposure (2 hours/overnight) for 5 days. Surface changes were assessed using mechanical profilometry (wear), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The data were analyzed using ANOVA followed by Tukey's post-test (p < 0.05). The negative control group exhibited the highest wear (6.0 µm ± 3.5), significantly differing from the group treated with 0.05% stannous fluoride gel (p = 0.007), which showed less dentin loss. The groups treated with 0.5% and 1% JSG showed results similar to the negative control (p = 0.661; p = 0.212, respectively) and the stannous fluoride group (p = 0.103; p = 0.379, respectively). In the SEM images, the specimen treated with stannous fluoride showed obliterated tubules, while the JSG gels formed crystals on the dentin surface, as confirmed by the presence of oxygen and calcium in the EDS analysis. Although the JSG gels showed similar results to the stannous fluoride, did not exhibit superior efficacy at the tested concentrations.
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Affiliation(s)
- Cibele Sales Rabelo
- Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Isabelly de Carvalho Leal
- Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | - Vanara Florêncio Passos
- Department of Restorative Dentistry, School of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
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DI Profio B, Lotto M, Aguirre PEA, Villar CC, Romito GA, Braga MM, Cruvinel T, Pannuti CM. Toothpaste-related interests of Google users from different countries. Braz Oral Res 2023; 37:e124. [PMID: 38126468 DOI: 10.1590/1807-3107bor-2023.vol37.0124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/31/2023] [Indexed: 12/23/2023] Open
Abstract
The Internet is a growing source of knowledge and can provide information about oral health. This ecological study aimed to characterize the interests in toothpaste among Google users from different countries. Our hypothesis was that there would be an increase in Google users' interest in information about toothpaste. This retrospective longitudinal ecological study analyzed the toothpaste-related interest of Google users from 10 countries between January 2004 and December 2020. The monthly variation in relative search volume (RSV) and the main related queries were determined using Google Trends. Autoregressive integrated moving average (ARIMA) forecasting models were built to establish the predictive RSV values for toothpaste for an additional 12 months. Autocorrelation plots and the generalized additive model (GAM) were used to diagnose trends and seasonality in RSV curves. Additionally, the influence of social isolation related to the outbreak of COVID-19 was analyzed. Although not detected by autocorrelation function (ACF) and partial autocorrelation function (PACF) analyses, the heuristic analysis showed an increase in the interest in toothpaste-related information in all countries, with a stable trend observed in the 12-month forecasts, except for the increases in the United Kingdom and South Africa. Also, GAM analyses demonstrated a non-significant monthly or quarterly seasonal influence on data. In addition, social isolation during the COVID-19 pandemic did not influence the online information-seeking behavior of Google Search users linked to this topic. We confirmed the hypothesis that the interest of Google Search users in information about toothpaste increased in all of the 10 assessed countries.
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Affiliation(s)
- Bruna DI Profio
- Universidade de São Paulo - USP, School of Dentistry , Department of Stomatology , São Paulo , SP , Brazil
| | - Matheus Lotto
- Universidade de São Paulo - USP, Bauru School of Dentistry , Department of Pediatric Dentistry, Orthodontics, and Public Health , Bauru , SP , Brazil
| | - Patricia Estefania Ayala Aguirre
- Universidade de São Paulo - USP, Bauru School of Dentistry , Department of Pediatric Dentistry, Orthodontics, and Public Health , Bauru , SP , Brazil
| | - Cristina Cunha Villar
- Universidade de São Paulo - USP, School of Dentistry , Department of Stomatology , São Paulo , SP , Brazil
| | - Giuseppe Alexandre Romito
- Universidade de São Paulo - USP, School of Dentistry , Department of Stomatology , São Paulo , SP , Brazil
| | - Mariana Minatel Braga
- Universidade de São Paulo - USP, School of Dentistry , Department of Pediatric Dentistry , São Paulo , SP , Brazil
| | - Thiago Cruvinel
- Universidade de São Paulo - USP, Bauru School of Dentistry , Department of Pediatric Dentistry, Orthodontics, and Public Health , Bauru , SP , Brazil
| | - Cláudio Mendes Pannuti
- Universidade de São Paulo - USP, School of Dentistry , Department of Stomatology , São Paulo , SP , Brazil
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Topical Agents for Nonrestorative Management of Dental Erosion: A Narrative Review. Healthcare (Basel) 2022; 10:healthcare10081413. [PMID: 36011070 PMCID: PMC9408325 DOI: 10.3390/healthcare10081413] [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: 07/01/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 11/24/2022] Open
Abstract
A nonrestorative approach to the management of dental erosion is the foremost option: controlling dental erosion. The objectives of this study are to provide an overview and to summarise the effects and properties of topical anti-erosive agents as a nonrestorative treatment of dental erosion. A literature search was conducted on five databases of peer-reviewed literature—Cochrane Library, EMBASE, PubMed, Scopus and Web of Science—to recruit articles published between 1 January 2000 and 31 December 2021. The literature search identified 812 studies; 95 studies were included. Topical anti-erosive agents can be broadly categorised as fluorides, calcium phosphate-based agents, organic compounds and other anti-erosive agents. In the presence of saliva, fluorides promote the formation of fluorapatite on teeth through remineralisation. Calcium phosphate-based agents supply the necessary minerals that are lost due to the acid challenge of erosion. Some organic compounds and other anti-erosive agents prevent or control dental erosion by forming a protective layer on the tooth surface, by modifying salivary pellicle or by inhibiting the proteolytic activity of dentine collagenases. Topical anti-erosive agents are promising in managing dental erosion. However, current evidence shows inconsistent or limited results for supporting the use of these agents in clinical settings.
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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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West NX, He T, Zou Y, DiGennaro J, Biesbrock A, Davies M. Bioavailable gluconate chelated stannous fluoride toothpaste meta-analyses: Effects on dentine hypersensitivity and enamel erosion. J Dent 2020; 105:103566. [PMID: 33383100 DOI: 10.1016/j.jdent.2020.103566] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 12/17/2020] [Accepted: 12/22/2020] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES To compare the effect of bioavailable gluconate-chelated stannous fluoride (SnF2) toothpaste with control toothpastes for treatment of dentine hypersensitivity (DH) and enamel erosion. DATA AND SOURCES A Procter & Gamble Oral Care archive of clinical studies was reviewed from 2000 to 2020. Eligible studies were Randomised Controlled Trials (RCTs) investigating bioavailable gluconate-chelated SnF2 toothpaste efficacy compared to controls in adult participants measured following tactile (Yeaple force) and/or evaporative stimuli (Schiff score) in-vivo, duration <2 months (DH); or by erosive toothwear (profilometry) from in-situ samples, duration 10-15 days. Two authors independently assessed eligibility and resolved disagreements by discussion. A meta-analysis was undertaken and Risk of Bias (RoB) assessed using the Cochrane collaboration RoB tool for randomized parallel-group and cross-over trials. RESULTS Fourteen RCTs (1287 participants) assessed DH relief and Six RCTs (184 participants) enamel erosion protection. For DH SnF2 toothpastes provided a 57 % (evaporative air) and 142 % (tactile) benefit versus negative controls (sodium fluoride/monofluorophosphate, 8 studies; p < 0.001). Compared to positive controls (potassium nitrate or arginine, 6 studies), a 22 % advantage (p = 0.036) was seen for evaporative air. In erosion studies, SnF2 toothpastes provided an 83 % benefit versus control toothpastes (arginine or sodium fluoride; p < 0.001) with a change (95 %CI) in average surface profilometry level (μm) of -2.02(-2.85, -1.20). CONCLUSIONS The use of these bioavailable SnF2 toothpastes, as part of a daily oral hygiene regimen, will provide patients with enamel erosion protection, combined with alleviation of DH pain when present, improving quality of life.
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Affiliation(s)
- Nicola X West
- Periodontology, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, UK.
| | - Tao He
- Research & Development, The Procter & Gamble Company, Mason, OH, 45040, USA.
| | - Yuanshu Zou
- Research & Development, The Procter & Gamble Company, Mason, OH, 45040, USA.
| | - Joe DiGennaro
- Research & Development, The Procter & Gamble Company, Mason, OH, 45040, USA.
| | - Aaron Biesbrock
- Research & Development, The Procter & Gamble Company, Mason, OH, 45040, USA.
| | - Maria Davies
- Periodontology, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, UK.
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Onwubu SC, Naidoo D, Mkhize SC, Mabaso NLN, Mdluli PS, Thakur S. An investigation in the remineralization and acid resistant characteristics of nanohydroxyapatite produced from eggshell waste via mechanochemistry. J Appl Biomater Funct Mater 2020; 18:2280800020968352. [PMID: 33325763 DOI: 10.1177/2280800020968352] [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] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES This study focuses on the properties of nanohydroxyapatite (nHAp) in terms of remineralization and acid resistance. The nHAp were produced from waste eggshells via the mechanochemistry process. MATERIALS AND METHODS The characterization was based on Fourier Transform Spectroscopy, X-ray diffraction, Field Scanning Electron Microscope (FESEM), and High-Resolution Electron Microscope to determine the surface morphology of the nHAp. The acid and remineralization properties were evaluated using bovine enamel and dentine models (n = 5) while the buffering properties against acids were studied using a pH meter. The biocompatibility of the produce nHAp was assessed in vitro against NIH 3T3. RESULTS The XRD and FTIR results confirm that nHAp were successfully produced from eggshell waste after 5 h of milling. The HRTEM reveals a semi-sphere morphology with an average dimension of 9 to 20 nm. The buffering test suggests that nHAp were highly effective in neutralizing common dietary acids. Also, the nHAp exhibits outstanding remineralization and occluding properties. The cytotoxicity assay suggests that the nHAp had a low toxicity. CONCLUSION The study concludes that using eggshell waste to produce nHAp will help in waste management and at the same time, provide valuable biomaterial for the treatment of tooth sensitivity.
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Affiliation(s)
| | - Deneshree Naidoo
- Chemistry, Durban University of Technology, Durban, KwaZulu-Natal, South Africa
| | | | | | | | - Surendra Thakur
- Enterprise Development Unit, Durban University of Technology, Durban, KwaZulu-Natal, South Africa
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Fiorillo L, Cervino G, Herford AS, Laino L, Cicciù M. Stannous Fluoride Effects on Enamel: A Systematic Review. Biomimetics (Basel) 2020; 5:E41. [PMID: 32878006 PMCID: PMC7559150 DOI: 10.3390/biomimetics5030041] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 11/24/2022] Open
Abstract
In recent years there has been a lot of talk about toothpastes with a particular chemical compound: stannous fluoride (SnF2). Its presence is currently still highly controversial, as the latter could have negative health effects. The different companies that produce toothpastes express its dosage in ppm. The purpose of this systematic literature review is to analyze all randomized clinical trials in the literature over the last 10 years and to draw clear results on the function of stannous fluoride, for this purpose the authors performed a Mann-Whitney U Test. MATERIALS The first analysis of the literature produced a number greater than 800 results, subsequently applying the inclusion and exclusion criteria, and following a manual analysis of the results, 26 manuscripts have been obtained. RESULTS From the results analyzed in this review, it could be shown that stannous fluoride does not present important contraindications, if not those commonly reported for fluorine. A meta-analysis on enamel loss has been conducted, it shows that SnF2 products provide better results with a p < 0.05 value. CONCLUSION This compound could have significant effects in favor of erosion and recalcification of the enamel, on the biofilm formation, gingival inflammation, and in addition, it could be an important aid in the removal of tooth stains and halitosis.
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Affiliation(s)
- Luca Fiorillo
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Policlinico G. Martino, Via Consolare Valeria, 98100 Messina, Italy; (G.C.); (M.C.)
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80100 Napoli, Italy;
| | - Gabriele Cervino
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Policlinico G. Martino, Via Consolare Valeria, 98100 Messina, Italy; (G.C.); (M.C.)
| | - Alan Scott Herford
- Department of Maxillofacial Surgery, Loma Linda University, Loma Linda, CA 92354, USA;
| | - Luigi Laino
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania “Luigi Vanvitelli”, 80100 Napoli, Italy;
| | - Marco Cicciù
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Policlinico G. Martino, Via Consolare Valeria, 98100 Messina, Italy; (G.C.); (M.C.)
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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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Creeth JE, Burnett GR, Souverain A, Gomez-Pereira P, Zero DT, Lippert F, Hara AT. In situ efficacy of an experimental toothpaste on enamel rehardening and prevention of demineralisation: a randomised, controlled trial. BMC Oral Health 2020; 20:118. [PMID: 32303206 PMCID: PMC7164289 DOI: 10.1186/s12903-020-01081-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 03/19/2020] [Indexed: 11/30/2022] Open
Abstract
Background A novel sodium fluoride toothpaste containing lactate ion and polyvinylmethylether-maleic anhydride has been developed to promote enamel remineralisation and resistance to demineralisation. In this in situ study, we compared this toothpaste (‘Test’) with a stannous fluoride-zinc citrate (SnF2-Zn) toothpaste (‘Reference’) (both 1100–1150 ppm fluoride) and a fluoride-free toothpaste (‘Placebo’) using an enamel dental erosion-rehardening model. Methods In each phase of this randomised, investigator-blind, crossover study, participants wore palatal appliances holding bovine enamel specimens with erosive lesions. They brushed their natural teeth with either the Test, Reference or Placebo toothpastes, then swished the resultant slurry. Specimens were removed at 2 h and 4 h post-brushing and exposed to an in vitro acid challenge. Surface microhardness was measured at each stage; enamel fluoride uptake was measured after in situ rehardening. Surface microhardness recovery, relative erosion resistance, enamel fluoride uptake and acid resistance ratio were calculated at both timepoints. Results Sixty two randomised participants completed the study. Test toothpaste treatment yielded significantly greater surface microhardness recovery, relative erosion resistance and enamel fluoride uptake values than either Reference or Placebo toothpastes after 2 and 4 h. The acid resistance ratio value for Test toothpaste was significantly greater than either of the other treatments after 2 h; after 4 h, it was significantly greater versus Placebo only. No treatment-related adverse events were reported. Conclusions In this in situ model, the novel-formulation sodium fluoride toothpaste enhanced enamel rehardening and overall protection against demineralisation compared with a fluoride-free toothpaste and a marketed SnF2-Zn toothpaste. Trial registration ClinicalTrials.gov; NCT03296072; registered September 28, 2017.
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Affiliation(s)
- Jonathan E Creeth
- GSK Consumer Healthcare, St George's Avenue, Weybridge, Surrey, KT13 0DE, UK.
| | - Gary R Burnett
- GSK Consumer Healthcare, St George's Avenue, Weybridge, Surrey, KT13 0DE, UK
| | - Audrey Souverain
- GSK Consumer Healthcare, Route de l'Etraz 2, 1260, Nyon, Switzerland
| | - Paola Gomez-Pereira
- GSK Consumer Healthcare, St George's Avenue, Weybridge, Surrey, KT13 0DE, UK
| | - Domenick T Zero
- Department of Cariology, Operative Dentistry and Dental Public Health and Oral Health Research Institute, Indiana University School of Dentistry, 415 Lansing Street, Indianapolis, IN, 46202, USA
| | - Frank Lippert
- Department of Cariology, Operative Dentistry and Dental Public Health and Oral Health Research Institute, Indiana University School of Dentistry, 415 Lansing Street, Indianapolis, IN, 46202, USA
| | - Anderson T Hara
- Department of Cariology, Operative Dentistry and Dental Public Health and Oral Health Research Institute, Indiana University School of Dentistry, 415 Lansing Street, Indianapolis, IN, 46202, USA
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11
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West NX, He T, Hellin N, Claydon N, Seong J, Macdonald E, Farrell S, Eusebio R, Wilberg A. Randomized in situ clinical trial evaluating erosion protection efficacy of a 0.454% stannous fluoride dentifrice. Int J Dent Hyg 2019; 17:261-267. [PMID: 30556372 PMCID: PMC6850309 DOI: 10.1111/idh.12379] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 11/08/2018] [Accepted: 11/29/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To assess the protective effects of a 0.454% stabilized stannous fluoride dentifrice and a marketed triclosan dentifrice against enamel erosion in a 10-day in situ model. METHODS This was a double-blind, randomized, 2-treatment, 4-period, crossover in situ trial involving healthy adult participants. Participants were randomized to a treatment sequence involving the following products: a highly bioavailable 0.454% stannous fluoride dentifrice (Procter & Gamble) and a marketed dentifrice control containing 0.24% sodium fluoride and 0.3% triclosan (Colgate-Palmolive). Each study period took place over 10 days. Participants wore an intra-oral appliance retaining two polished human enamel samples for 6 hours per day. Two times per day they swished with the assigned dentifrice slurry and four times per day they swished with 250 mL of orange juice (25 mL per minute) over a 10-minute period. Contact profilometry measurements were made for each sample at baseline and day 10 to determine surface change. RESULTS Thirty-six participants were enrolled and 33 completed the study (mean age = 40.5 years). The stannous fluoride dentifrice demonstrated 93.5% less enamel loss than the NaF/triclosan dentifrice (P < 0.001) at Day 10, with median enamel loss of 0.097 µm and 1.495 µm, respectively. Both products were well tolerated. CONCLUSION The stannous fluoride dentifrice demonstrated significantly greater erosion protection efficacy relative to the NaF/triclosan dentifrice in this randomized in situ clinical trial.
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Affiliation(s)
| | - Tao He
- Procter & GambleMason Business CenterMasonOhioUSA
| | - Nikki Hellin
- Clinical Trials UnitBristol Dental SchoolBristolUK
| | | | - Joon Seong
- Clinical Trials UnitBristol Dental SchoolBristolUK
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Onwubu SC, Mdluli PS, Singh S. Evaluating the buffering and acid-resistant properties of eggshell-titanium dioxide composite against erosive acids. J Appl Biomater Funct Mater 2019; 17:2280800018809914. [PMID: 30803287 DOI: 10.1177/2280800018809914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE: This paper reports on the buffering and acid-resistant properties of a modified eggshell-titanium composite against citric acid attack. MATERIALS AND METHODS: Eggshell-titanium EB-TiO2 was prepared by ball-milling eggshell powder and titanium dioxide. Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Transmission Electron Microscopy (TEM) were used to characterize EB-TiO2. The buffering property against citric acid at pH values of 2, 4, and 5 was measured using a pH meter. Five brands of toothpaste (Colgate, Colgate Sensitive, Aquafresh, Oralwise, and Sensodyne) were used to assess the acid-resistant properties of EB-TiO2. Enamel models were simulated by dissolving each brand of toothpaste with eggshell (control) and EB-TiO2. The samples were exposed to citric acid of pH 2. The average slope (kPa/s) was measured using a pressure sensor. An analysis of variance was used to analyze the kPa/s values (α =.05). RESULTS: The FTIR and XRD analyses suggest the surface modification of EB-TiO2. The TEM image revealed spherical-shaped particles in EB-TiO2. The pH test results showed that the buffering properties of eggshell and EB-TiO2 were comparable. Significant differences were observed in the acid resistance properties of the samples exposed to citric acids ( P < .05). The Colgate toothpaste infused with eggshell powder had the highest mean kPa/s values, whereas Sensodyne infused with EB-TiO2 had the lowest kPa/s values. CONCLUSION: The salient features of this study indicate that modification of eggshell with titanium dioxide does not affect its carbonate buffering properties. Connecting the kPa/s values to acid-resistant properties, EB-TiO2 effectively reduces erosive attacks when added to toothpaste.
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Affiliation(s)
| | | | - Shenuka Singh
- 3 Discipline of Dentistry, University of KwaZulu-Natal (UKZN), Durban, South Africa
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13
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Abdelwahed AG, Temirek MM, Hassan FM. Antierosive Effect of Topical Fluorides: A Systematic Review and Meta-Analysis of In Situ Studies. Open Access Maced J Med Sci 2019; 7:1523-1530. [PMID: 31198467 PMCID: PMC6542392 DOI: 10.3889/oamjms.2019.291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The effectiveness of the application of topical fluorides in prevention of erosive tooth wear has been an issue of controversy in the literature. The objective of this systematic review was to assess in situ studies investigating the effects of using topical fluorides on prevention of erosive tooth wear. MATERIAL AND METHODS Two electronic databases PubMed/MEDLINE and Cochrane Central Register of Controlled Trials were searched. Eligibility criteria included in situ-controlled studies that assessed the effect of the erosive process without additional tooth brushing. The search involved English-written articles only. A total of 684 potentially relevant titles and abstracts were found after removal of duplicates, of which 22 full-text articles were selected. Seventeen studies were included in the qualitative synthesis of which 6 studies included in the meta-analysis. The following data were obtained for each study: authors, year of publication, country, study design, periods of study, duration, blinding, interventions (type/concentration/form), tooth substrate, location of the intraoral appliance, number of samples attached to each appliance, type of acidic media used for erosive challenge, duration of erosive challenge, subjects (number/age/sex), reported side effects -if any-, measuring device, amounts of tissue loss. RESULTS The risk of bias of the included studies was assessed using the Cochrane Collaboration tool for assessing the risk of bias. A meta-analysis of the present study was performed using Comprehensive Meta-Analysis version 2.2.048 software. CONCLUSION The use of oral hygiene products containing AmF/NaF/SnCl2 or NaF may be effective in the prevention of erosive tooth wear.
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Affiliation(s)
- Ahmed Gamal Abdelwahed
- Conservative Dentistry Department, Faculty of Dentistry, October 6 University, Cairo, Egypt
| | - Marwa Mohamed Temirek
- Conservative Dentistry Department; Faculty of Dentistry, Fayoum University, Faiyum, Egypt
| | - Fayez Mohamed Hassan
- Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt
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14
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Onwubu SC, Mdluli PS, Singh S, Madikizela L, Ngombane Y. Characterization and in vitro evaluation of an acid resistant nanosized dental eggshell-titanium dioxide material. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Ferraz LN, Pini NIP, Ambrosano GMB, Aguiar FHB, Lima DANL. Influence of cigarette smoke combined with different toothpastes on enamel erosion. Braz Oral Res 2019; 33:e114. [DOI: 10.1590/1807-3107bor-2019.vol33.0114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 11/04/2019] [Indexed: 11/22/2022] Open
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16
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Onwubu SC, Mdluli PS, Singh S, Nyembe S, Thakur R. An In Situ Evaluation of the Protective Effect of Nano Eggshell/Titanium Dioxide against Erosive Acids. Int J Dent 2018; 2018:4216415. [PMID: 30631360 PMCID: PMC6304922 DOI: 10.1155/2018/4216415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/19/2018] [Accepted: 11/07/2018] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Enamel erosion caused by high consumption of acidic drinks poses a significant public health concern. This study was aimed to determine the protective effect of eggshell-titanium dioxide composite (EB@TiO2) against erosive acids on tooth enamel. METHODS Twenty prepared bovine tooth enamel specimens were randomly assigned to 5 sample groups (n=4): (1) unexposed tooth enamel; (2) exposed tooth enamel + HCI; (3) exposed tooth enamel + HCI + Colgate toothpaste; (4) exposed tooth enamel + HCI + Sensodyne toothpaste; and (5) exposed tooth enamel + HCI + EB@TiO2. The mean roughness value (R rms) of the exposed and unexposed tooth was measured with atomic force microscope (AFM). Scanning electron microscope (SEM) and Raman spectroscopy techniques were used to evaluate the surface morphology and changes. ANOVA was used to analyze the mean square roughness (R rms) values for all specimens. Bonferonni correction was used to identify the mean differences among the 5 groups (α=0.05). The R rms values measured for the unexposed and exposed specimens in HCI alone were statistically significant (P < 0.05). RESULTS No significant differences were found for the unexposed and exposed specimens in HCI + toothpaste and EB@TiO2. The tooth enamel specimens exposed to HCI + Sensodyne had the highest R rms values, while specimens exposed to HCI + EB@TiO2 had the lowest R rms values. CONCLUSIONS This study confirms that the investigated toothpaste provides protection against acidic substances. The study results further suggests that EB@TiO2 could be used to provide enhanced protection for tooth enamel.
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Affiliation(s)
| | | | - Shenuka Singh
- Discipline of Dentistry, University of KwaZulu-Natal (UKZN), Durban, South Africa
| | - Sanele Nyembe
- DST/Mintek Nanotechnology Innovation Centre, Advanced Materials Division, Mintek, Private Bag X3015, Randburg, Johannesburg 2125, South Africa
| | - Rookmoney Thakur
- Dental Sciences, Durban University of Technology (DUT), Durban, South Africa
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17
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Susceptibility of bovine dental enamel with initial erosion lesion to new erosive challenges. PLoS One 2017; 12:e0182347. [PMID: 28817591 PMCID: PMC5560727 DOI: 10.1371/journal.pone.0182347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 07/17/2017] [Indexed: 11/19/2022] Open
Abstract
This in vitro study evaluated the impact of initial erosion on the susceptibility of enamel to further erosive challenge. Thirty bovine enamel blocks were selected by surface hardness and randomized into two groups (n = 15): GC- group composed by enamel blocks without erosion lesion and GT- group composed by enamel blocks with initial erosion lesion. The baseline profile of each block was determined using the profilometer. The initial erosion was produced by immersing the blocks into HCl 0.01 M, pH 2.3 for 30 seconds, under stirring. The erosive cycling consisted of blocks immersion in hydrochloric acid (0.01 M, pH 2.3) for 2 minutes, followed by immersion in artificial saliva for 120 minutes. This procedure was repeated 4 times a day for 5 days, and the blocks were kept in artificial saliva overnight. After erosive cycling, final profile measurement was performed. Profilometry measured the enamel loss by the superposition of initial and final profiles. Data were analyzed by t-test (p<0.05). The result showed no statistically significant difference between groups (GS = 14.60±2.86 and GE = .14.69±2.21 μm). The presence of initial erosion on bovine dental enamel does not enhance its susceptibility to new erosive challenges.
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Pini NIP, Schlueter N, Sundfeld D, Semper Hogg W, Santos-Silva AR, Lopes MA, Aguiar FHB, Lovadino JR, Lima DANL. Efficacy of Stannous Ions on Enamel Demineralization under Normal and Hyposalivatory Conditions: A Controlled Randomized in situ Pilot Trial. Caries Res 2017; 51:543-553. [PMID: 28977796 DOI: 10.1159/000479041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/25/2017] [Indexed: 11/19/2022] Open
Abstract
The study aim was to investigate the effect of antierosive agents on enamel under normal and hyposalivatory conditions. This double-blind crossover in situ pilot study evaluated 4 toothpastes: placebo (0 ppm F), sodium fluoride (NaF, 1,450 ppm), stannous/sodium fluoride (SnF/NaF, 1,450 ppm F-, 1,090 ppm Sn2+), and sodium fluoride, stannous chloride and chitosan (NaF/Sn/Ch, 1,450 ppm F-, 3,500 ppm Sn2+, 0.5% Ch). Twenty participants were assigned to 2 groups (n = 10 each): normal and low salivary flow. Participants wore palatal appliances holding 4 bovine enamel specimens previously eroded in vitro (D1) for 20 min prior to an in situ phase after which they were eroded again (D2). Surface microhardness was determined at baseline (BL), after D1, in situ phase and D2 to assess hardness loss (%SMH), residual hardness loss (%RHL) and erosion resistance (%RER). Additional specimens were evaluated by scanning electron microscopy after the in situ phase. ANOVA and a factorial analysis for between-subject effects were performed. Sn-based toothpastes showed the best effects (p < 0.05). Under normal flow, SnF/NaF showed higher efficacy, with a significant difference compared to NaF/Sn/Ch, NaF, and placebo (p < 0.05). Under low flow, SnF/NaF and NaF/Sn/Ch were comparable (p > 0.05); NaF and placebo were statistically similar. Comparing salivary conditions, there were significant differences for SnF/NaF for %SMH after the in situ phase (%SMHtotal)), %RHL and for all toothpastes in case of %RER. Factorial analysis revealed interactions between toothpaste and saliva flow for %SMHtotal and %RHL. Salivary flow can influence the efficacy of the antierosive toothpastes; however, Sn2+ preparations show even under low salivary flow conditions the highest efficacy in the prevention of enamel erosion.
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West NX, He T, Macdonald EL, Seong J, Hellin N, Barker ML, Eversole SL. Erosion protection benefits of stabilized SnF 2 dentifrice versus an arginine-sodium monofluorophosphate dentifrice: results from in vitro and in situ clinical studies. Clin Oral Investig 2016; 21:533-540. [PMID: 27477786 PMCID: PMC5318474 DOI: 10.1007/s00784-016-1905-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 07/07/2016] [Indexed: 11/26/2022]
Abstract
Objectives The aim of these investigations was to assess the ability of two fluoride dentifrices to protect against the initiation and progression of dental erosion using a predictive in vitro erosion cycling model and a human in situ erosion prevention clinical trial for verification of effectiveness. Materials and methods A stabilized stannous fluoride (SnF2) dentifrice (0.454 % SnF2 + 0.077 % sodium fluoride [NaF]; total F = 1450 ppm F) [dentifrice A] and a sodium monofluorophosphate [SMFP]/arginine dentifrice (1.1 % SMFP + 1.5 % arginine; total F = 1450 ppm F) [dentifrice B] were tested in a 5-day in vitro erosion cycling model and a 10-day randomized, controlled, double-blind, two-treatment, four-period crossover in situ clinical trial. In each study, human enamel specimens were exposed to repetitive product treatments using a standardized dilution of test products followed by erosive acid challenges in a systematic fashion. Results Both studies demonstrated statistically significant differences between the two products, with dentifrice A providing significantly better enamel protection in each study. In vitro, dentifrice A provided a 75.8 % benefit over dentifrice B (p < 0.05, ANOVA), while after 10 days in the in situ model, dentifrice A provided 93.9 % greater protection versus dentifrice B (p < 0.0001, general linear mixed model). Conclusion These results support the superiority of stabilized SnF2 dentifrices for protecting human teeth against the initiation and progression of dental erosion. Clinical relevance Stabilized SnF2 dentifrices may provide more significant benefits to consumers than conventional fluoride dentifrices.
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Affiliation(s)
- N X West
- School of Oral and Dental Sciences, Bristol Dental School and Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK.
| | - T He
- Procter and Gamble, Cincinnati, OH, USA
| | - E L Macdonald
- School of Oral and Dental Sciences, Bristol Dental School and Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK
| | - J Seong
- School of Oral and Dental Sciences, Bristol Dental School and Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK
| | - N Hellin
- School of Oral and Dental Sciences, Bristol Dental School and Hospital, Lower Maudlin Street, Bristol, BS1 2LY, UK
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