口腔龋病示教英文版ppt培训课件.ppt

,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,口腔龋病示教英文版,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 caries?,Be familiar with the definitions of dental caries and classification.,Simply describe clinical manifestation and symptoms of dental caries.,