口腔龋病示教(英文版).ppt

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口腔龋病示教(英文版)

Dental Caries 1.DEFENITION Dental caries, also known as tooth decay, cavities, or caries, is a breakdown of teeth due to activities of bacteria. Dental caries An chronic infectious disease with progressive destruction of tooth. 2.CAUSE:【four factors】 1889, Miller: chemocoparasitic theory Tooth loss is common health problem. Dental caries is the main reason ! Prevalence and incidence Almost everyone is affected by dental caries. Clinical classification of caries According to three basic factors : 1、severity and rate of progression 2、anatomical site(involving site) 3、age patterns at which lesions predominate Acute caries Chronic caries Arrested caries Rampant caries Classification according to the developing speed Classification according to the involving site Occlusal caries Root caries Smooth surface caries Linear enamel caries Clinical Manifestation and Symptoms Visible pits or holes in the tooth Colour changing Soften Pain changes in tissue color, texture, and structure A B C D A Early caries may have no symptoms B be sensitive to sweet foods or to hot and cold temperatures C very sensitive to stimulator D the acute pain Examination Clinical observations (Visual change) Probing The explorer tip can easily damage white spot lesions Examination Temperature test X-ray Transillumination Diagnosis Clinical signs visual – color, texture, shape, location, cavitation, Clinical symptoms Diagnostic test--examination Treatment Non-surgical - remineralization Surgical - restoration The different ways of treatment depend on the size and depth of the cavity, and how much structure has been lost. Calcium hydroxide pulp-capping material lining material filling material Prevention is the most important for dental caries. Problem for review What is the etiology of dental

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