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Xavier GMB, De Almeida AS, de Souza Bentes AG, Sano IS, Silva CM, Araújo JLN. Assessment of the Erosive Potential of Mineral Waters in Bovine Dental Enamel. Open Dent J 2022. [DOI: 10.2174/18742106-v16-e2208180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
High intake of acidic foods and beverages has been often associated with the onset of dental erosive wear.
Objetive:
This study in vitro assessed the pH of different mineral waters marketed in Brazil and their effects on the properties and surface of dental enamel.
Methods:
Forty-eight bovine incisor specimens were divided into four groups (n=12): CG-control group, PeG-Perrier, PrG-Prata, and SLG-São Lourenço. The immersion cycles were performed after analysis of the pH of the waters, for 5 days (5 minutes in mineral water and 60 minutes in artificial saliva). Knoop micro-hardness was assessed by means of three indentations with a load of 50kgf for 15 seconds, and surface roughness with a cut off of 0.25mm. The data were analysed using Student's t-test, ANOVA, and Tukey test, with a significance level of 5%.
Results:
The groups of waters with lower pH (Perrier® and São Lourenço®) exhibited a reduction in Knoop micro-hardness (p<0.0001) and an increase in surface roughness (p=0.04 and p=0.004, respectively). The Prata water group did not exhibit significant changes in Knoop micro-hardness (p=0.07) and surface roughness (p=0.26).
Conclusion:
Mineral waters with a pH below the critical value can lead to a reduction in surface hardness and roughness in the bovine enamel.
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Mutahar M, Bartlett D, Carpenter G, Moazzez R. Proteins from whole mouth saliva mediate greater protection against severe erosive tooth wear than proteins from parotid saliva using an in vitro model. J Dent 2020; 95:103319. [DOI: 10.1016/j.jdent.2020.103319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 02/04/2020] [Accepted: 03/09/2020] [Indexed: 12/25/2022] Open
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3
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Enamel surface loss after erosive and abrasive cycling with different periods of immersion in human saliva. Arch Oral Biol 2020; 109:104549. [DOI: 10.1016/j.archoralbio.2019.104549] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 11/21/2022]
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Pini NIP, Lima DANL, Luka B, Ganss C, Schlueter N. Viscosity of chitosan impacts the efficacy of F/Sn containing toothpastes against erosive/abrasive wear in enamel. J Dent 2020; 92:103247. [DOI: 10.1016/j.jdent.2019.103247] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/09/2019] [Accepted: 11/14/2019] [Indexed: 11/29/2022] Open
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5
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Pelino JEP, Passero A, Martin AA, Charles CA. In vitro effects of alcohol-containing mouthwashes on human enamel and restorative materials. Braz Oral Res 2018; 32:e25. [PMID: 29561951 DOI: 10.1590/1807-3107bor-2018.vol32.0025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 02/21/2018] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to evaluate the in vitro effects, including surface morphological characteristics and chemical elemental properties, of different mouthwash formulations on enamel and dental restorative materials, simulating up to 6 months of daily use. Human enamel samples, hydroxyapatite, composite resin, and ceramic surfaces were exposed to 3 different mouthwashes according to label directions - Listerine® Cool Mint®, Listerine® Total Care, and Listerine® Whitening - versus control (hydroalcohol solution) to simulate daily use for up to 6 months. The samples were analyzed using scanning electron microscopy (SEM), infrared spectrophotometry (µ-Fourier transform infrared microscopy), energy-dispersive X-ray (EDX) spectroscopy, and color analysis before and after exposure. No relevant changes were observed in the morphological characteristics of the surfaces using SEM techniques. The physical and chemical aspects of the enamel surfaces were evaluated using mid-infrared spectroscopy, and EDX fluorescence was used to evaluate the elemental aspects of each surface. There was no variation in the relative concentrations of calcium and phosphorus in enamel, silicon and barium in composite resin, and silicon and aluminum in the ceramic material before and after treatment. No relevant changes were detected in the biochemical and color properties of any specimen, except with Listerine® Whitening mouthwash, which demonstrated a whitening effect on enamel surfaces. Long-term exposure to low pH, alcohol-containing, and peroxide-containing mouthwash formulations caused no ultra-structural or chemical elemental changes in human enamel or dental restorative materials in vitro.
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Affiliation(s)
| | - Alan Passero
- Johnson & Johnson Consumer, Inc., São José dos Campos, SP, Brazil
| | - Airton Abrahao Martin
- Universidade do Vale do Paraíba - Univap, Physics Institute, São José dos Campos, SP, Brazil
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Buzalaf MAR, Magalhães AC, Rios D. Prevention of erosive tooth wear: targeting nutritional and patient-related risks factors. Br Dent J 2018; 224:371-378. [PMID: 29495031 DOI: 10.1038/sj.bdj.2018.173] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2017] [Indexed: 02/07/2023]
Abstract
This article provides an overview of the nutritional and patient-related risk factors involved in the aetiology of erosive tooth wear (ETW) and the preventive strategies to counteract them. The first step is to diagnose clinical signs of ETW and to recognise causal factors. Low pH and high buffer capacity of foods/drinks are the major risk factors, while the calcium concentration is the main protective factor. Reduction of frequency of consumption and contact time of erosive foods/drinks with the teeth, use of straws appropriately positioned and consumption of dairy products are advisable. Oral hygiene has a role in the development of ETW, however, postponing toothbrushing is not clinically advisable. In cases of drug abuse, chronic alcoholism, GERD or bulimia, the patient must be referred to a doctor. Immediately after vomiting, patients might be advised to rinse the mouth. Saliva has an important protective role and patients with reduced salivary flow can benefit from the use of chewing gum. Recent studies have focused on improving the protective capacity of the acquired pellicle as well as on the role of protease inhibitors on dentine erosion. However, the degree of evidence for these preventive measures is low. Clinical trials are necessary before these measures can be recommended.
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Affiliation(s)
- M A R Buzalaf
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, Brazil 17,012-901
| | - A C Magalhães
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, Brazil 17,012-901
| | - D Rios
- Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, Brazil 17,012-901
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Mutahar M, Carpenter G, Bartlett D, German M, Moazzez R. The presence of acquired enamel pellicle changes acid-induced erosion from dissolution to a softening process. Sci Rep 2017; 7:10920. [PMID: 28883656 PMCID: PMC5589892 DOI: 10.1038/s41598-017-11498-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/25/2017] [Indexed: 12/30/2022] Open
Abstract
Erosive wear undermines the structural properties of enamel resulting in irreversible enamel loss. A thin protein layer formed from natural saliva on tooth surfaces, acquired enamel pellicle (AEP), protects against erosive wear. The exact components in saliva responsible for such protection are not yet known. We prepared three solutions containing different components: proteins and ions [natural saliva (NS)], minerals with no proteins [artificial saliva (AS)] and neither proteins nor ions [deionised water (DW)]. To assess the protection of the three solutions against citric acid enamel erosion, enamel specimens were immersed in the corresponding solution for 24 h. All specimens were then exposed to five erosion cycles, each consisted of a further 30 min immersion in the same solution followed by 10-min erosion. Mean step height using a non-contacting profilometer, mean surface microhardness (SMH) using Knoop microhardness tester (final SMH), and roughness and 2D profiles using atomic force microscopy were measured after five cycles. The final SMH values were compared to the starting values (after 24 hr). NS group had significantly less tissue loss but greater SMH change (P < 0.0001) than AS and DW groups. Specimens in NS were softer and rougher (P < 0.001) but less eroded than specimens in AS and DW.
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Affiliation(s)
- Mahdi Mutahar
- Salivary Research, Mucosal and Salivary Biology Division, King's College London Dental Institute, London Bridge, London, SE1 9RT, United Kingdom.
| | - Guy Carpenter
- Salivary Research, Mucosal and Salivary Biology Division, King's College London Dental Institute, London Bridge, London, SE1 9RT, United Kingdom
| | - David Bartlett
- Tissue Engineering and Biophotonics, King's College London Dental Institute, London Bridge, London, SE1 9RT, United Kingdom
| | - Matthew German
- Centre for Oral Health Research, School of Dental Sciences, Newcastle University, Newcastle upon Tyne, NE2 4BW, United Kingdom
| | - Rebecca Moazzez
- Salivary Research, Mucosal and Salivary Biology Division, King's College London Dental Institute, London Bridge, London, SE1 9RT, United Kingdom
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Mutahar M, O’Toole S, Carpenter G, Bartlett D, Andiappan M, Moazzez R. Reduced statherin in acquired enamel pellicle on eroded teeth compared to healthy teeth in the same subjects: An in-vivo study. PLoS One 2017; 12:e0183660. [PMID: 28837608 PMCID: PMC5570300 DOI: 10.1371/journal.pone.0183660] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/08/2017] [Indexed: 11/26/2022] Open
Abstract
The aim of this in-vivo study was to compare total protein and four key salivary proteins present in the acquired enamel pellicle (AEP) on eroded and non-eroded surfaces in participants with erosive tooth wear. Participants with erosive tooth wear of dietary non-intrinsic origin, present on the occlusal surfaces of the lower first molars and an unaffected posterior occlusal surface in the same quadrant were recruited from restorative dental clinics at King's College London Dental Institute (n = 29, REC ref 14/EM/1171). Following removal of the salivary film, AEP samples were collected from the eroded occlusal surfaces (EP, n = 29) and the non-eroded occlusal surfaces (NP, n = 29) using 0.5% sodium dodecyl sulfate (SDS) soaked filter papers. Total protein concentration was analysed using bicinchoninic acid assay (BCA). Protein fractions were separated using SDS-PAGE and immunoblotted against: mucin5b, albumin, carbonic anhydrase VI (CA VI) and statherin antibodies. Amounts were quantified using ImageLab software against purified protein standards of known concentration. ANOVA followed by paired t-test and Wilcoxon's matched-pair signed-rank test were used to test statistical significance. The difference was considered to be significant at a P value < 0.05. The total protein on eroded surfaces was significantly lower compared to the total protein on non-eroded surfaces [0.41mg/mL (0.04) and 0.61 mg/mL (0.11)] respectively (p< 0.05). The median (min, max) amount of statherin was also significantly lower on eroded occlusal surfaces [84.1 (20.0, 221.8) ng] compared to AEP from non-eroded teeth in the same subjects [97.1(30.0, 755.6) ng] (p = 0.002). No statistical differences were observed for mucin 5b, albumin or CA VI. The total protein and statherin in the in-vivo AEP were different between eroded and non-eroded tooth surfaces of the same patient.
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Affiliation(s)
- Mahdi Mutahar
- Mucosal and Salivary Biology, King's College London Dental Institute, London, United Kingdom
| | - Saoirse O’Toole
- Tissue engineering and Biophotonics, King's College London Dental Institute, London, United Kingdom
| | - Guy Carpenter
- Mucosal and Salivary Biology, King's College London Dental Institute, London, United Kingdom
| | - David Bartlett
- Tissue engineering and Biophotonics, King's College London Dental Institute, London, United Kingdom
| | - Manoharan Andiappan
- Biostatistics and Research Methods Centre, King's College London Dental Institute, London, United Kingdom
| | - Rebecca Moazzez
- Mucosal and Salivary Biology, King's College London Dental Institute, London, United Kingdom
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Tsuda Y, Kitasako Y, Sadr A, Nakashima S, Tagami J. Effects of brushing timing after erosive challenge on enamel loss in situ: White light interferometer and nanoindentation study. Dent Mater J 2017; 35:613-20. [PMID: 27477227 DOI: 10.4012/dmj.2015-405] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This in situ study aimed to evaluate effects of waiting periods after erosive challenge before toothbrushing on enamel abrasion and nanoindentation hardness. Ten subjects wore intraoral appliances each with a set of 4 bovine enamel blocks. The enamel blocks were subjected to 2 cycles a day for 3 days as follows; intraoral exposure to form acquired pellicle and extraoral erosion followed by either 0, 3, 30 or 60 min intraoral exposure and then brushing, which was performed using an automatic brushing machine. Abrasive loss was assessed by white light interferometry. Nanoindentation was performed to calculate relative hardness. Abrasion and relative hardness were statistically analyzed by ANOVA. Abrasive loss was significantly less in groups exposed to saliva compared with 0 min (p<0.05); there was no significant difference between 30 and 60 min (p>0.05). Relative hardness was statistically higher after intraoral exposure, but no differences existed among any intraoral exposure periods (p>0.05).
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Affiliation(s)
- Yuka Tsuda
- Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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Jordão MC, Ionta FQ, Bergantin BT, Oliveira GC, Moretto MJ, Honório HM, Silva TC, Rios D. The Effect of Mucin in Artificial Saliva on Erosive Rehardening and Demineralization. Caries Res 2017; 51:136-140. [DOI: 10.1159/000454817] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 11/25/2016] [Indexed: 11/19/2022] Open
Abstract
The effect of mucin in artificial saliva on rehardening (RE-experiment) and inhibition (DE-experiment) of erosion was evaluated. The treatment groups were: artificial saliva with mucin, artificial saliva without mucin, human saliva, and water. For the RE-experiment, after immersion of enamel blocks in citric acid (4 min), hardness was measured and blocks were subjected to treatment for 2 h. For the DE-experiment, sound blocks were subjected to treatment for 2 h and immersed in citric acid (4 min). Percentages of hardness recovery (RE) and loss (DE) were analyzed (ANOVA/Tukey's test). The salivas promoted similar rehardening, but only the saliva with mucin was similar to human saliva with regard to enamel protection against erosion.
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Alaraudanjoki V, Laitala ML, Tjäderhane L, Pesonen P, Lussi A, Ronkainen J, Anttonen V. Influence of Intrinsic Factors on Erosive Tooth Wear in a Large-Scale Epidemiological Study. Caries Res 2016; 50:508-516. [DOI: 10.1159/000448292] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 07/03/2016] [Indexed: 11/19/2022] Open
Abstract
Objective: To assess the influence of self-reported intrinsic factors [gastroesophageal reflux disease (GERD), long-term alcoholism, long-term heavy use of alcohol and multiple pregnancies] on erosive tooth wear in a middle-aged cohort sample. Materials and Methods: Of the total Northern Finland Birth Cohort (NFBC 1966), a convenience sample (n = 3,181) was invited for an oral health examination in 2012-2013, of which 1,962 participated, comprising the final study group. Erosive tooth wear was assessed by sextants using the Basic Erosive Wear Examination Index (BEWE, 0-18). Clinical data were supplemented by questionnaires conducted in 1997/1998 and 2012/2013. The participants were divided into severe (BEWE sum ≥9) and no-to-moderate (BEWE sum 0-8) erosive wear groups, and the logistic regression model was applied. Results: Selected intrinsic factors were quite rare in this cohort sample and explained only 5.9% of the difference in the prevalence and severity of erosive wear. Daily symptoms of GERD [odds ratio (OR) 3.8, confidence interval (CI) 1.2-12.0] and hyposalivation (OR 3.8, CI 1.2-11.8) were the strongest risk indicators for severe erosive wear. Additionally, variables associated with an elevated risk for severe erosive wear were diagnosed alcoholism at any point (OR 2.5, CI 0.7-9.7) and self-reported heavy use of alcohol in both questionnaires (OR 2.0, CI 0.6-6.2). Even low-dose long-term consumption of alcohol was associated with erosive wear. Conclusions: In this cohort sample, intrinsic factors such as GERD or alcoholism alone are relatively uncommon causes of erosive tooth wear. The role of long-term use of alcohol in the erosion process may be bigger than presumed.
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González-Aragón Pineda ÁE, Borges-Yáñez SA, Lussi A, Irigoyen-Camacho ME, Angeles Medina F. Prevalence of erosive tooth wear and associated factors in a group of Mexican adolescents. J Am Dent Assoc 2016; 147:92-7. [DOI: 10.1016/j.adaj.2015.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 07/10/2015] [Accepted: 07/14/2015] [Indexed: 11/25/2022]
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ALEXANDRIA AK, MECKELBURG NDA, PUETTER UT, SALLES JT, SOUZA IPR, MAIA LC. Do pediatric medicines induce topographic changes in dental enamel? Braz Oral Res 2016; 30:S1806-83242016000100211. [DOI: 10.1590/1807-3107bor-2016.vol30.0011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 08/31/2015] [Indexed: 11/22/2022] Open
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Algarni AA, Mussi MCM, Moffa EB, Lippert F, Zero DT, Siqueira WL, Hara AT. The impact of stannous, fluoride ions and its combination on enamel pellicle proteome and dental erosion prevention. PLoS One 2015; 10:e0128196. [PMID: 26030135 PMCID: PMC4452394 DOI: 10.1371/journal.pone.0128196] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 04/24/2015] [Indexed: 02/07/2023] Open
Abstract
Objectives To compare the effects of stannous (Sn) and fluoride (F) ions and their combination on acquired enamel pellicle (AEP) protein composition (proteome experiment), and protection against dental erosion (functional experiment). Methods In the proteome experiment, bovine enamel specimens were incubated in whole saliva supernatant for 24h for AEP formation. They were randomly assigned to 4 groups (n=10), according to the rinse treatment: Sn (800ppm/6.7mM, SnCl2), F (225ppm/13mM, NaF), Sn and F combination (Sn+F) and deionized water (DIW, negative control). The specimens were immersed 3× in the test rinses for 2min, 2h apart. Pellicles were collected, digested, and analyzed for protein content using liquid chromatography electrospray ionization tandem mass spectrometry. In the functional experiment, bovine enamel specimens (n=10) were similarly treated for pellicle formation. Then, they were subjected to a five-day erosion cycling model, consisting of 5min erosive challenges (15.6 mM citric acid, pH 2.6, 6×/d) and 2min treatment with the rinses containing Sn, F or Sn+F (3×/d). Between the treatments, all specimens were incubated in whole saliva supernatant. Surface loss was determined by profilometry. Results Our proteome approach on bovine enamel identified 72 proteins that were common to all groups. AEP of enamel treated with Sn+F demonstrated higher abundance for most of the identified proteins than the other groups. The functional experiment showed reduction of enamel surface loss for Sn+F (89%), Sn (67%) and F (42%) compared to DIW (all significantly different, p<0.05). Conclusion This study highlighted that anti-erosion rinses (e.g. Sn+F) can modify quantitatively and qualitatively the AEP formed on bovine enamel. Moreover, our study demonstrated a combinatory effect that amplified the anti-erosive protection on tooth surface.
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Affiliation(s)
- A. A. Algarni
- Oral Health Research Institute, Indiana University School of Dentistry, Indiana University, Indianapolis, Indiana, United States of America
| | - M. C. M. Mussi
- Department of Biochemistry, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - E. B. Moffa
- Department of Biochemistry, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - F. Lippert
- Oral Health Research Institute, Indiana University School of Dentistry, Indiana University, Indianapolis, Indiana, United States of America
| | - D. T. Zero
- Oral Health Research Institute, Indiana University School of Dentistry, Indiana University, Indianapolis, Indiana, United States of America
| | - W. L. Siqueira
- Department of Biochemistry, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - A. T. Hara
- Oral Health Research Institute, Indiana University School of Dentistry, Indiana University, Indianapolis, Indiana, United States of America
- * E-mail:
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Seong J, Virani A, Parkinson C, Claydon N, Hellin N, Newcombe RG, West N. Clinical enamel surface changes following an intra-oral acidic challenge. J Dent 2015; 43:1013-20. [PMID: 25868879 DOI: 10.1016/j.jdent.2015.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 03/27/2015] [Accepted: 04/01/2015] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES Investigation of early enamel erosion using replica impressions to compare changes in enamel surface topography in vivo prior to and over a 24 h period following acid challenge. METHOD A single treatment, blinded, enamel replica clinical study was undertaken in 20 healthy subjects. Replica tooth impressions were taken at baseline, following acid challenge and 2, 4, 7 and 24 h post challenge. Subjects consumed 500 ml of acidic soft drink over 30 min. Scanning electron microscopy of surface tomography was characterised with a descriptive 5 point scale by four judges. Duplicate impressions were taken to assess reproducibility. RESULTS 18 subjects had scorable sequences. Descriptive analyses showed erosive changes following acid consumption and reparative changes in the subsequent 24 h period. Comparing baseline replica to the 24 h replica, there were no significant differences (p=0.26) in tooth surface characteristics. Comparing the replica taken immediately following acidic challenge with the subsequent replicas at 2, 4, 7 and 24 h, showed clear reduction of erosive effects on the enamel surface at 2 h (p=0.02) and a highly significant reduction at 4, 7 and 24 h (p<0.001). CONCLUSION This methodology demonstrated the ability to follow the progression and recovery of early erosive enamel lesions over 24 h being accurate and reproducible. This study suggests enamel repair commences within 2 h following a substantial acidic challenge and is completed 4-24 h later. After 24 h, the tooth surface appeared visibly indistinguishable from the original tooth surface, suggestive of a recovery process occurring. CLINICAL SIGNIFICANCE Healthy erosive lifestyles often culminate in tooth wear. The time taken for enamel remineralisation following acidic challenge is unknown however, this study suggests the repair process is relatively slow following a substantial acidic challenge, and at least 4-24 h should elapse prior to further acidic consumption to allow for recovery.
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Affiliation(s)
- J Seong
- Periodontology, Clinical Trials Unit, Bristol Dental School, Bristol, UK
| | - A Virani
- Periodontology, Clinical Trials Unit, Bristol Dental School, Bristol, UK
| | - C Parkinson
- Oral Care Medical Affairs Consumer Healthcare R&D, GlaxoSmithKine, Weybridge, UK
| | - N Claydon
- Periodontology, Clinical Trials Unit, Bristol Dental School, Bristol, UK
| | - N Hellin
- Periodontology, Clinical Trials Unit, Bristol Dental School, Bristol, UK
| | - R G Newcombe
- Institute of Primary Care and Public Health, Cardiff University, Cardiff, UK
| | - N West
- Periodontology, Clinical Trials Unit, Bristol Dental School, Bristol, UK.
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Lussi A, Lussi J, Carvalho TS, Cvikl B. Toothbrushing after an erosive attack: will waiting avoid tooth wear? Eur J Oral Sci 2014; 122:353-9. [DOI: 10.1111/eos.12144] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Adrian Lussi
- Department of Preventive, Restorative and Pediatric Dentistry; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Jonas Lussi
- Department of Preventive, Restorative and Pediatric Dentistry; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Thiago S. Carvalho
- Department of Preventive, Restorative and Pediatric Dentistry; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Barbara Cvikl
- Department of Preventive, Restorative and Pediatric Dentistry; School of Dental Medicine; University of Bern; Bern Switzerland
- Department of Conservative Dentistry & Periodontology; Medical University of Vienna; Vienna Austria
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