Theories of dental caries pdf

Worms according to an ancient sumerian text, tooth ache was caused by a worm that drank the blood of the teeth and fed on the roots of the jaws. Dental caries progressive initially subsurface demineralization of teeth by. Considered to be the father of modern dentistry, discredited the tooth worm theory, and thought dental caries was. According to this theory, dental caries results from an initial bacterial and enzymatic proteolytic action on the organic matter of enamel without preliminary demineralization. Dental caries is caused by plaques, which are a community of microorganisms in biofilm format. Theories of dental caries rubab haider final year bds fmh college of med and. The belief that tooth decay is due to acid decalcification has dominated thinking and research on caries for almost a cen tury, but is still unproved. Parmly 1819 proposed that an unidentified chymical agent was responsible for caries. Genetic and peripheral factors lead to variations in the oral microbiome.

The systemic theory of dental caries clinton dentistry. Scribd is the worlds largest social reading and publishing site. Pdf dental caries is a biofilmmediated, sugardriven, multifactorial, dynamic disease that results in the phasic demineralization and. According to this theory, teeth are destroyed by the acids formed in the oral cavity by the putrefaction of protein which produced ammonia and was subsequently oxidized to nitric. Following are some of the causes that is believed to cause dental caries chemical acid theory. It is the destruction of dental hard acellular tissue by acidic byproducts from the bacterial fermentation of dietary carbohydrates especially sucrose. There is evidence to demonstrate that dental caries occurs when the body can no longer control the inflammatory process within the tooth. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Theories of dental caries by dr prerna shrivastava career hub medical institute bhopal,tooth caries duration. Physicians may help reduce the incidence of caries by recommending elimination of refined sugars from the diet. Theories of dental caries free download as powerpoint presentation. Endogenous theories includes 1 humoral theory according to which an imbalance between the humors of body caused tooth decay.