In vitro Quantitative Microhardness Assessment of Enamel with Early Salivary Pellicles after Exposure to an Eroding Cola Drink

Maupomé, Gerardo; Aguilar-Avila, M.; Medrano-Ugalde, H. A.; Borges‐Yáñez, S. Aída

doi:10.1159/000016508

Cited by 62 publications

(54 citation statements)

References 28 publications

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“…However, in this study only a single laminar flow velocity (225 mm/min) and a single acidic compounds. This finding corroborates the results of previous studies [9][10][11].…”

Section: Discussionsupporting

confidence: 93%

“…This hypothesis was corroborated in a laboratory study, in which enamel dissolution in an agitated solution was distinctly increased compared to a non-agitated solution [9].…”

Section: Introductionmentioning

confidence: 52%

“…However, beside the chemical aspects of substances, also the physical or physicochemical aspects, such as adhesiveness of the solution to the tooth surface, temperature, flow rate and agitation of the solution seem to have an influence on its erosive potential [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Impact of laminar flow velocity of different acids on enamel calcium loss

et al. 2012

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OBJECTIVE: The aim of the study was to evaluate the impact of flow velocity under laminar flow conditions of different acidic solutions on enamel erosion. MATERIAL AND METHODS: A total of 240 bovine enamel specimens were prepared and allocated to 30 groups (n = 8 each). Samples of 18 groups were superfused in a flow chamber system with laminar flow behavior using 1 ml of citric acid or hydrochloric acid (HCl) of pH 2.0, 2.6 or 3.0. Flow rates in the sample chamber were adjusted to 10, 60 or 100 l/min. To simulate turbulent flow behavior, samples of six groups were immersed in 1 ml of the respective solution, which was vortexed (15 min, 600 rpm). For simulating non-agitated conditions, specimens of the remaining six groups were immersed in 1 ml of the respective solution without stirring. Calcium in the solutions, released from the enamel samples, was determined using Arsenazo III method. RESULTS: For acidic solutions of pH 2.6 and 3.0, erosive potential of citric acid was equivalent to that of HCl at a flow of 100 l/min. The same observation was made for the samples subjected to turbulent conditions at pH 3. At all other conditions, citric acid induced a significantly higher calcium loss than HCl. CONCLUSION: It is concluded that under slow laminar flow conditions, flow rate variations lead to higher erosive impact of citric acid compared to hydrochloric acid at pH 2.0, but not at pH 2.6 and increasing laminar flow or turbulent conditions. CLINICAL RELEVANCE: Erosive enamel dissolution under laminar flow conditions is a complex issue influenced by flow rate and acidic substrate. Material and methods: A total of 240 bovine enamel specimens were prepared and allocated to 30 groups (n=8 each). Samples of 18 groups were superfused in a flow chamber system with laminar flow behavior using 1 ml of citric acid or hydrochloric acid (HCl) of pH: 2.0, 2.6, or 3.0. Flow rates in the sample chamber were adjusted to 10, 60 or 100 µl/min. To simulate turbulent flow behavior, samples of six groups were immersed in 1 ml of the respective solution, which was vortexed (15 min, 600 rpm).For simulating non-agitated conditions, specimens of the remaining six groups were immersed in 1 ml of the respective solution without stirring. Calcium in the solutions, released from the enamel samples, was determined using Arsenazo-III-method.Results: For acidic solutions of pH 2.6 and 3.0, erosive potential of citric acid was equivalent to that of HCl at flow of 100 µl/min. The same observation was made for the samples subjected to turbulent conditions at pH 3. At all other conditions, citric acid induced a significantly higher calcium loss than HCl.Conclusion: It is concluded that under slow laminar flow conditions, flow rate variations lead to higher erosive impact of citric acid compared to hydrochloric acid at pH 2.0, but not at pH > 2.6 and increasing laminar flow or turbulent conditions. Clinical relevance: Erosive enamel dissolution under laminar flow conditions is a complex issue influenced by flow rate and acidic substrate.3

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“…However, in this study only a single laminar flow velocity (225 mm/min) and a single acidic compounds. This finding corroborates the results of previous studies [9][10][11].…”

Section: Discussionsupporting

confidence: 93%

“…This hypothesis was corroborated in a laboratory study, in which enamel dissolution in an agitated solution was distinctly increased compared to a non-agitated solution [9].…”

Section: Introductionmentioning

confidence: 52%

See 1 more Smart Citation

Impact of laminar flow velocity of different acids on enamel calcium loss

et al. 2012

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“…On exogenous factors, frequent intake of acidic foods and drinks [7][8][9][10][11] , acid oral hygiene products 12) , and long-term use of acidic drugs 13) are the typical examples. In addition, when workers of battery factory exposed to sulfuric acid or workers of galvanizing factory exposed to hydracid chloride, dental erosion occurs 14) .…”

Section: Introductionmentioning

confidence: 99%

A Study on the Enamel Erosion Caused by Energy Drinks

Jeong¹,

Jeong²,

Son

et al. 2014

Journal of dental hygiene science

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To find out the effect of commercially available energy drinks on tooth enamel erosion, analyzed pH, buffering capacity, and the content of some of the inorganic components selecting 4 energy drinks that has high affinity of the products currently being sold. In addition, by observing the degree of erosion before and after immersion in energy drink by surface microhardness and scanning electron microscope (SEM) the results were as follows: Acidity of energy drink ʻBurn Intenseʼ was the lowest as 2.78±0.01 highest on distilled water as 6.475±0.01. ʻBurn Intenseʼ buffering capacity was 3.48±0.155 at pH 5.5, 1.88±0.15 at pH 7.0 which is the highest, and ʻHot6ʼ was 1.71±0.37, 1.23±0.35 on each of it showing the lowest points. Ca content on energy drink was the highest at ʻVolt Energyʼ as (77.21±2.70 mg/kg), the lowest at ʻHot6ʼ as (0.98±0.05 mg/kg). P content was the highest on ʻHot6ʼ(1.34±0.05 mg/kg) and detected at ʻRed Bullʼ. Enamel surface hardness variation of the energy drinks before and after immersion showed rapid decrease at ʻRed Bullʼ (66.65±35.60), and ʻVolt Energyʼ (61.96±31.42), ʻBurn Intenseʼ (58.53±24.84), ʻHot6ʼ (53.99±60.26) was in order. Distilled water, the control group, showed significant difference with the experimental group (p＜0.05). But there was no significant difference between energy drinks. At SEM observation and analysis, ʻBurn Intenseʼ was the most severe demineralization, ʻVolt Energyʼ, ʻHot6ʼ, ʻRed Bullʼ, distilled water was in order. In the above results, taken together there were no statistically differences between energy drinks but significant difference in comparison with distilled water. In addition, at SEM observation and analysis all energy drink caused dental erosion, especially ʻBurn Intenseʼ, has the lowest acidity, was serious. Thus, it is believed to provide a variety of oral health education and information about energy drinks that can affect the erosion of the teeth so public have the right to be recognized and reasonable dental care.

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“…Em seguida, os corpos de prova foram adaptados a uma matriz metálica e submetidos a um aplainamento superficial, por meio de lixas d'água de granulação 240 e 600, possibilitando a obtenção de uma superfície lisa, regular, plana e polida, permitindo a realização da análise pelo microdurômetro (MATUMOTO, 2008). Concluídos os corpos de prova, realizou-se a mensuração da microdureza Vickers (T1) e em seguida, os mesmos foram armazenados em água destilada, evitando, dessa forma, o seu ressecamento e desmineralização, uma vez que a água mantém a umidade do esmalte e não apresenta propriedades erosivas (MAUPOMÉ et al, 1999). A partir da identificação das bebidas com menor e maior valor de pH endógeno, distribuiu-se os 25 corpos de prova, aleatoriamente, em cinco grupos, de cinco elementos cada, conforme descrito no Quadro 1.…”

Section: Methodsunclassified

Efeito Dos Sucos De Frutas Industrializados Na Microdureza Do Esmalte Dental Permanente

Xavier¹

2011

R Bras Ci Saúde

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In vitro Quantitative Microhardness Assessment of Enamel with Early Salivary Pellicles after Exposure to an Eroding Cola Drink

Cited by 62 publications

References 28 publications

Impact of laminar flow velocity of different acids on enamel calcium loss

Impact of laminar flow velocity of different acids on enamel calcium loss

A Study on the Enamel Erosion Caused by Energy Drinks

Efeito Dos Sucos De Frutas Industrializados Na Microdureza Do Esmalte Dental Permanente

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