1、 Dental Caries 1.DEFENITIONnDental 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 theoryTooth loss is common
2、 health problem.Dental caries is the main reason!Prevalence and incidence Almost everyone is affected by dental caries.Clinical classification of cariesnAccording to three basic factors:1、severity and rate of progression 2、anatomical site(involving site)3、age patterns at which lesions predominate Ac
3、ute caries Rampant cariesClassification according to the developing speedClassification according to the involving siteOcclusal caries Root cariesSmooth surface caries Linear enamel caries Clinical Manifestation and Symptoms Visible pits or holes in the tooth Colour changing Soften Painchanges in ti
4、ssue color,texture,and structure ABCDA 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 ExaminationClinical observations (Visual change)ProbingThe explorer tip can easily damage white spot lesionsExaminatio
5、nTransilluminationn Clinical signs visual color,texture,shape,location,cavitation,nClinical symptomsnDiagnostic test-examinationNon-surgical -remineralizationSurgical -restorationThe different ways of treatment depend on the size and depth of the cavity,and how much structure has been lost.Calcium h
6、ydroxide pulp-capping material lining material filling material Prevention is the most important for dental caries.Problem for reviewnWhat is the etiology of dental caries?n Be familiar with the definitions of dental caries and classification.nSimply describe clinical manifestation and symptoms of dental caries.
