The erosive effects of some mouthrinses on enamel

Pontefract, HA; Hughes, J. A.; Kemp, K; Yates, R. J.; Newcombe, R. G.; Addy, M.

doi:10.1034/j.1600-051x.2001.028004319.x

Cited by 77 publications

(56 citation statements)

References 18 publications

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“…Contrary to popular belief, yoghurts were not found to cause erosion of enamel and remove the smear layer [141]. Some mouthrinses with low pH will readily dissolve the smear layer to expose open tubules [142] as do some toothpastes detergents, such as sodium lauryl sulphate [143, 144]. Most mechanical influences on dentin, for example, abrasion and attrition, cause a plastic tissue flow and produce or remove a smear layer [145].…”

Section: Lesion Initiationmentioning

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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Section: Lesion Initiationmentioning

confidence: 99%

Dentin hypersensitivity: pain mechanisms and aetiology of exposed cervical dentin

et al. 2012

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“…There is evidence that oral care products, e.g. toothpastes, mouthrinses and saliva substitutes [Rytömaa et al, 1989;Kielbassa et al, 1997Kielbassa et al, , 2001Lussi and Jaeggi, 2001;Pontefract et al, 2001;MeyerLueckel et al, 2002], have a potentially damaging effect on dental hard tissues. In patients with initial caries, use of acidic oral care products could enhance the abrasive effect of brushing.…”

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confidence: 99%

Profilometric and Microradiographic Studies on the Effects of Toothpaste and Acidic Gel Abrasivity on Sound and Demineralized Bovine Dental Enamel

et al. 2005

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The objective of this study was to assess the abrasive effects of toothpastes and acidic F gels on sound and demineralized enamel. Pairs of enamel specimens were cut from bovine incisors, embedded in epoxy resin and polished. An artificial subsurface lesion of 80–90 µm depth was created in one specimen from each pair. The samples were covered with adhesive tape, thereby exposing the enamel for abrasivity testing. All samples were divided into six groups of 15 and brushed with a slurry (1:3) of F gel or toothpaste and human saliva. Brushing with water (control) or with slurry was carried out (16,000 strokes) using a medium toothbrush (load 275 g) mounted in a brushing machine. Abrasion was evaluated using laser profilometry, and was about 50% less on sound than on demineralized enamel (p < 0.001). In the latter, brushing with water (0.09 ± 0.03 µm) or with fluoride-free gel (0.08 ± 0.03 µm) resulted in negligible wear. With a medium-abrasive paste (1.76 ± 0.85 µm) and an acidic F gel (2.48 ± 0.72 µm), brushing abrasion was significantly greater (p < 0.001) than with a low-abrasive paste (0.84 ± 0.38 µm). The greatest wear (16.6 ± 10.8 µm) was observed with high-abrasive paste (p < 0.001), and here transversal microradiography revealed a complete loss of the pseudointact surface after brushing. In vitro formed caries-like lesions can be abraded (by toothbrushing) more easily than sound enamel; hence, initial white spot lesions should preferably be brushed with oral hygiene products of low abrasivity.

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“…Da mesma forma como ocorre com a estrutura dentária, os materiais restauradores e reabilitadores bucais também ficam suscetíveis aos efeitos erosivos intrínsecos e extrínsecos 13 . No caso das próteses removíveis, além desses efeitos, a erosão dos materiais para base protética (resina termopolimerizável e dentes artificiais) pode ser associada aos procedimentos de desinfecção por imersão em agentes com poder erosivo, tais como ácidos peracético e acético 14 , e enxaguatórios bucais 15 . Neste contexto, os dentes acrílicos artificiais devem apresentar característica de resistência a esses ácidos, para que não ocorram alterações substanciais de suas propriedades.…”

Section: Effect Of Acid Challenge On the Surface Properties Of Externunclassified

Efeito do desafio ácido nas propriedades superficiais das camadas externa e interna de dentes acrílicos reforçados

Oliveira

Ferreira

Melo

et al. 2017

Rev. odontol. UNESP

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ResumoIntrodução: Os dentes acrílicos artificiais devem apresentar característica de resistência aos ácidos, a fim de assegurar a manutenção de suas propriedades, ao longo de sua vida útil. Entretanto, não há estudos disponíveis na literatura pertinente sobre as propriedades superficiais de dureza e rugosidade das diferentes camadas de resina acrílica que compõem os dentes artificiais submetidos a ensaios de erosão simulada. Objetivo: Avaliar a dureza e rugosidade superficiais das camadas externa e interna de dentes artificiais acrílicos reforçados submetidos a desafio ácido. Metodologia: Molares (SR Postaris e Trilux) seccionados transversalmente foram avaliados inicialmente quanto à dureza Vickers e rugosidade. Esses ensaios foram repetidos após metade das amostras de cada tipo de dente (n=10) ser imersa em água destilada (controle) e outra metade em vinagre durante 15 min/dia por 28 dias. Os resultados foram analisados por ANOVA 2-critérios e teste de Tukey (α=0,05). Resultado: A dureza inicial da camada externa dos dois diferentes tipos de dente não sofreu alteração significativa pelo desafio ácido (p>0,05) e a imersão em vinagre não causou efeito deletério à dureza inicial da camada interna dos dois tipos de dentes avaliados (p>0,05). Após 28 dias, a rugosidade inicial de ambos os tipos de dentes estudados, para as duas camadas, não foi alterada com água ou vinagre (p>0,05). Conclusão: Os dentes acrílicos reforçados foram resistentes ao desafio ácido uma vez que suas camadas interna e externa não apresentaram alteração significativa de dureza e rugosidade superficiais.Descritores: Dente artificial; dureza; ácido acético; propriedades de superfície. AbstractIntroduction: Artificial acrylic teeth must be resistant to acids for ensure the maintenance of their properties throughout their useful life. However, there are no studies available in the literature about the surface properties of hardness and roughness of the different layers of acrylic resin that make up the artificial teeth submitted to simulated erosion tests. Objective: To evaluate the surface hardness and roughness of external and internal layers of artificial cross-linked acrylic teeth submitted to acid challenge. Methodology: First molars (SR Postaris and Trilux) transversely sectioned had its Vickers hardness and roughness initially evaluated. These tests were repeated after half of the tooth samples (n=10) be immersed into distilled water (control) and half in vinegar during 15 min/day for 28 days. Data were analyzed using 2-way ANOVA and Tukey's test (α=0.05). Result: The initial external layers hardness of both was not significantly altered by acid challenge (p> 0.05) and the immersion in vinegar caused no deleterious effect on the initial internal layers hardness of the two tested teeth (p>0.05). After 28 days, the initial roughness of both teeth evaluated for the two layers was not affected by water or vinegar (p>0.05). Conclusion: The reinforced acrylic teeth were resistant to acid challenge since its internal and external layers showed n...

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The erosive effects of some mouthrinses on enamel

Cited by 77 publications

References 18 publications

Dentin hypersensitivity: pain mechanisms and aetiology of exposed cervical dentin

Dentin hypersensitivity: pain mechanisms and aetiology of exposed cervical dentin

Profilometric and Microradiographic Studies on the Effects of Toothpaste and Acidic Gel Abrasivity on Sound and Demineralized Bovine Dental Enamel

Efeito do desafio ácido nas propriedades superficiais das camadas externa e interna de dentes acrílicos reforçados

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