With the reduction of the prevalence of caries from the years 1960, the concern with the loss of teeth has been directed to other causes, including the dental erosion.
dental erosion can be defined as the physical result of a loss of hard tissue of teeth surface caused by acids and/or chelating agents, without the involvement of bacteria. The results can be catastrophic for dental health, since loss of tissue can generate sensitivity, pain and bad appearance. Furthermore, the restoration of enamel and/or dentin lost is difficult, costly and requires continuous monitoring. Soft drinks appear as one of the main cause of dental erosions and therefore Cláudia Fushida and Jaime Cury da Universidade Estadual de Campinas decided to evaluate the effect of frequency of ingestion of coolant in the erosion of the enamel-dentine and studying the biological capacity of saliva on the rollback of changes
.
To bovine teeth were both used from which prepared blocks of radicular dentin and enamel suitable for surface microhardness determination. Nine volunteers, using Palatine intraorais devices containing four blocks of enamel and dentin four, participated in the work in four steps, in which Coca-Cola was ingested from one to eight times a day. the factors responsible for the erosion may be intrinsic or extrinsic, idiopathic. Extrinsic erosion is the result of exogenous origin acids, for example, contained in soft drinks. Intrinsic are the acids produced by vomiting, regurgitation recurring ebbs and flows. Idiopathic are acids
of unknown origin.
the results show that, according to the frequency of intake of soda, the percentage of loss of firmness was 18.7 to 27.9 to enamel and dentin to 24.6 for 32.6. The recovery percentage of hardness by the action of saliva was partial, ranging from 43.6 to 35.6 to the enamel and the dentin 40.5 to 34.6. According to the team, “there was also a significant correlation between the frequency of ingestion of Coca-Cola and the percentage of loss of firmness, being of 0.97 to enamel and dentin to 0.72. On the other hand, in terms of recovery of hardness, the correlation was negative, -0.70 to the enamel and dentin ” -0.74 to.
this way, the researchers conclude that, depending on the frequency of intake of soda, there are proportional and irreversible losses of superficial structure of enamel and dentin alike. Depending on the nature of the phenomenon of erosion, only oral health promotion measures could contribute to its control. In this way, guidance to reduce the frequency of contact of teeth with soft drinks, acidic foods or medicines is the most logical and effective Council
.
Source: Odontologika
. uol.com. br/ >
