口腔龋病示教(英文版)综述课件.ppt

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 cariesSmooth 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 stimulatorD the acute pain,Examination,Clinical observations (Visual change)Probing,The explorer tip can easily damage white spot lesions,Examination,Temperature testX-rayTransillumination,Diagnosis,Clinical signs visual color, texture, shape, location, cavitation, Clinical symptomsDiagnostic 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 caries? Be familiar with the definitions of dental caries and classification.Simply describe clinical manifestation and symptoms of dental caries.,