Investigation of erosion and abrasion on enamel and dentine: a model in situ using toothpastes of different abrasivity

Hooper, SM; West, NX; Pickles, M J; Joiner, Andrew; Newcombe, Robert G.; Addy, M.

doi:10.1034/j.1600-051x.2003.00367.x

Cited by 178 publications

(190 citation statements)

References 23 publications

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“…The observation that abrasion of eroded dentin increased along with the RDA-value confirms the results of Hooper et al 9 who showed that a toothpaste with higher RDA (RDA 189) also caused higher wear on eroded dentin than a less abrasive toothpaste (RDA 85).…”

Section: Discussionsupporting

confidence: 79%

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Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter

Wiegand

Kuhn

Sener

et al. 2009

Journal of Dentistry

109

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Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter SummaryObjective: This study aimed to evaluate the impact of toothpaste slurry abrasivity and toothbrush filament diameter on abrasion of eroded dentin in vitro.Methods: Eroded dentin samples (hydrochloric acid, pH: 2.6, 15s) were brushed with 40 strokes in an automatic brushing machine using manual toothbrushes with different filament diameter (0.15 mm, 0.20 mm or 0.25 mm). The toothbrushes were applied with a control slurry free of abrasive particles (RDA-value: 10) or toothpastes slurries with different abrasivity (RDA-values: 20, 50 or 100). Each erosive-abrasive cycle was followed by storage of the dentin samples in artificial saliva for 3h. After each 4 cycles, the samples were stored in artificial saliva for 15h. After 60 cycles, dentin loss was measured by profilometry and statistically analysed by ANOVA and linear regression analysis.Results: Dentin loss increased along with the RDA-value of the toothpaste slurries. The impact of the filament diameter on dentin loss was less evident compared to the RDA-value.However, toothbrushes with smaller filament stiffness caused higher dentin wear in all toothpaste slurry groups (RDA 20, 50 and 100) except for the paste-free control group (RDA 10).Conclusion: Abrasion of eroded dentin increased along with the RDA-value of the toothpaste slurry and with decreasing filament diameter of the toothbrush.3

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Section: Discussionsupporting

confidence: 79%

“…This has been shown for sound dental hard tissues [6][7][8] and, in a few studies, also for eroded enamel and dentin. 9,10 Toothbrush abrasivity is analysed by a radiotracer method, which determines relative abrasivity of sound enamel and dentine (REA and RDA, respectively) compared to reference abrasives.…”

Section: Introductionmentioning

confidence: 99%

Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter

Wiegand

Kuhn

Sener

et al. 2009

Journal of Dentistry

109

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“…The Relative Dentin Abrasion (RDA) and Relative Enamel Abrasion of a toothpaste define its abrasive potential on a normalised scale with an accepted standard material serving as a reference [111]. In situ studies to investigate the effects of abrasion on dentin have shown that dentin is considerably more susceptible than enamel to abrasion alone [112] and that significant differences in dentin wear can be detected between a moderate- and high-RDA toothpaste [113]. These effects on enamel can be explained by the fact that most toothpaste contains abrasives which are softer than enamel.…”

Section: Lesion Localisationmentioning

confidence: 99%

Dentin hypersensitivity: pain mechanisms and aetiology of exposed cervical dentin

et al. 2012

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ObjectivesThe paper’s aim is to review dentin hypersensitivity (DHS), discussing pain mechanisms and aetiology.Materials and methodsLiterature was reviewed using search engines with MESH terms, DH pain mechanisms and aetiology (including abrasion, erosion and periodontal disease).ResultsThe many hypotheses proposed for DHS attest to our lack of knowledge in understanding neurophysiologic mechanisms, the most widely accepted being the hydrodynamic theory. Dentin tubules must be patent from the oral environment to the pulp. Dentin exposure, usually at the cervical margin, is due to a variety of processes involving gingival recession or loss of enamel, predisposing factors being periodontal disease and treatment, limited alveolar bone, thin biotype, erosion and abrasion.ConclusionsThe current pain mechanism of DHS is thought to be the hydrodynamic theory. The initiation and progression of DHS are influenced by characteristics of the teeth and periodontium as well as the oral environment and external influences. Risk factors are numerous often acting synergistically and always influenced by individual susceptibility.Clinical relevanceWhilst the pain mechanism of DHS is not well understood, clinicians need to be mindful of the aetiology and risk factors in order to manage patients’ pain and expectations and prevent further dentin exposure with subsequent sensitivity.

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“…Therefore, reliable detection of minimal losses below 1 tJm are generally difficult to accomplish with profilometry, although Hooper et al [53] [38] have demonstrated that profilom-etry was able to distinguish between different abrasivities of toothpastes creating hard tissue loss of about 0.5 tJm. For such precise measurements with low varia-tions, meticulous flattening and polishing of sample surface is an important step.…”

Section: Surface Profilometrymentioning

confidence: 99%

Methods for Assessment of Dental Erosion

Attin¹

2006

Monographs in Oral Science

122

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Various assessment techniques have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by erosive challenges. In this chapter, the most frequently adopted techniques for analyzing the erosively altered dental hard tissues are reviewed, such as profilometry, measuring microscope techniques, microradiography, scanning electron microscopy, atom force microscopy, nano-and microhardness tests and iodide permeability test. Moreover, methods for chemical analysis of minerals dissolved from dental hard tissue are discussed. It becomes evident that the complex nature of erosive mineral loss and dissolution might not be comprehended by a single technique, but needs application of different approaches for full understanding. Chapter 10Lussi A (ed): Dental Erosion. Monogr Oral Sci. Basel, Karger, 2006, vol 20, pp 152-172 Methods for Assessment of Dental Erosion Thomas Attin, Florian Just WegehauptCenter for Dental Medicine, Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Zürich, Switzerland AbstractVarious assessment techniques have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by erosive challenges. In this chapter, the most frequently adopted techniques for analyzing the erosively altered dental hard tissues are reviewed, such as profilometry, microradiography, scanning electron microscopy, atom force microscopy, nano-and microhardness tests and iodide permeability test. Moreover, methods for chemical analysis of minerals dissolved from dental hard tissue are discussed. It becomes evident that the complex nature of erosive mineral loss and dissolution might not be comprehended by a single technique, but needs application of different approaches for full understanding. Copyright © 2006 S. Karger AG, Basel Acid attack leads to an irreversible loss of the outermost enamel and dentin layers and to partial demineralization (softening) of the tooth surface. In enamel, the thickness of the softened layer is estimated to be 2-5 tJm [1,2] [1, 2]. The softened eroded tooth surface is highly susceptible to abrasive wear, and mechanical impacts such as toothbrushing can easily remove the superficially demineralized dental hard tissue [3][4][5] [3][4][5]. For simulating intra-oral erosion as closely as possible, it is desirable to assess the erosive effects on native tooth surfaces. Most of the methods described below need polished surfaces for precise assessment of the erosively induced defects or for creating reference surfaces, which means that the natural, often fluoridated surface of the tooth has to be removed. However, it should be considered that in the case of intra-oral erosion the outermost surface layers are also continuously removed by the acid attack, so that a 'polished' surface is Attin 2 cre-ated. When monitoring of erosive surface alterations within a period of time is performed, it could become necessary to fix a specimen in the measuring device i...

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Investigation of erosion and abrasion on enamel and dentine: a model in situ using toothpastes of different abrasivity

Abstract: Erosion increases the susceptibility of enamel to toothpaste abrasion. Dentine is considerably more susceptible than enamel to erosion and abrasion alone or combined. Dentine loss appears to correlate with toothpaste abrasivity (RDA value).

Cited by 178 publications

References 23 publications

Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter

Abrasion of eroded dentin caused by toothpaste slurries of different abrasivity and toothbrushes of different filament diameter

Dentin hypersensitivity: pain mechanisms and aetiology of exposed cervical dentin

Methods for Assessment of Dental Erosion

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