ETIOPATHOGENESIS OF DENTAL CARIES DOWNLOAD!
The disease dental caries is a dynamic process taking place in the microbial deposits (dental plaque) which results in a disturbance of the equilibrium between tooth substance and the surrounding plaque fluid so that, over time, the result is a loss of mineral from the tooth surface. aspect of dental caries; aiming the reasoning and understanding of several the disease pathogenesis and provides its control in a simple and. The four circles diagrammatically represent the factors involved in the carious four factors must act concurrently (overlapping of the circles)for caries.
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|Published:||25 July 2016|
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These bacterial strains, most notably S. The process is dynamic, however, as remineralization can also occur if the acid is neutralized by saliva or mouthwash.
Pathophysiology of Dental Caries.
Fluoride toothpaste or dental varnish may aid remineralization. The impact etiopathogenesis of dental caries sugars have on the progress of dental caries is called cariogenicity.
Sucrose, although a bound glucose and fructose unit, is in fact more cariogenic than a mixture of equal parts of glucose and fructose. This is due to the bacteria utilising the energy in the saccharide bond between the glucose and fructose subunits. Net demineralization of dental hard tissues occurs below the critical pH 5.
The frequency with which teeth are exposed to cariogenic acidic environments affects the likelihood of caries development.
As time progresses, the pH returns to normal due to the buffering capacity of saliva and the dissolved mineral content of tooth surfaces. During every exposure to the etiopathogenesis of dental caries environment, portions of the inorganic mineral content at the surface of teeth dissolve and can remain dissolved for two hours.
The carious process can begin within days of a tooth's erupting into the mouth if the diet is sufficiently rich in suitable carbohydrates.
Evidence suggests that the introduction of fluoride treatments has slowed the process.
Because the cementum enveloping the root surface is not nearly as durable as the enamel encasing the crown, root caries tends to progress much more rapidly than decay etiopathogenesis of dental caries other surfaces. The progression and loss of mineralization on the root surface is 2.
In very severe cases where oral hygiene is very poor and where the diet is very rich in fermentable carbohydrates, caries may cause cavities within months of tooth eruption.
Dental Caries: Its Etiology, Pathology, Clinical Aspects and Prophylaxis
This can occur, for example, when children continuously drink sugary drinks from baby bottles see later discussion. Teeth[ edit ] Tooth decay There are certain diseases and disorders affecting teeth that may leave an individual at a greater risk for cavities.
Molar incisor hypomineralization, which seems to be increasingly common. Enamel begins to demineralize at a pH of 5. etiopathogenesis of dental caries
Pathophysiology of Dental Caries.
Even in a healthy oral environment, however, the tooth is susceptible to dental caries. Where the deep developmental grooves of teeth are more numerous and exaggerated, pit and fissure caries is more likely to develop see next section. Also, caries is more likely to develop when food is trapped between etiopathogenesis of dental caries.
Other factors[ edit ] Reduced salivary flow rate is associated with increased caries since the buffering capability of saliva is not present to counterbalance the acidic environment created by certain foods.
ETIOLOGY OF DENTAL CARIES
As a result, medical conditions that reduce the amount of saliva produced by salivary glandsin particular the submandibular gland and parotid glandare likely to lead to dry mouth and thus to widespread tooth decay.
Stimulants, most notoriously methylamphetaminealso occlude the flow of saliva to an extreme degree. This is known as meth mouth. Tetrahydrocannabinol THCthe active chemical substance in cannabisalso causes a nearly complete occlusion of salivation, known in colloquial terms as "cotton mouth".
Experiments on rats have shown that a high-sucrose, cariogenic diet "significantly suppresses the rate of fluid motion" in dentin. Some brands of smokeless tobacco contain high sugar content, increasing susceptibility to caries.
If this occurs, root caries is a concern since the cementum covering etiopathogenesis of dental caries roots of teeth is more easily demineralized by acids than enamel.