武汉大学：《牙体牙髓病学》课程PPT教学课件（英文版）龋齿的临床特征及诊断 Clinical Features Diagnosis of Dental Caries

Clinical features Diagnosis of Dental Caries CHEN Zhi Wuhan University School of Stomatology

Clinical Features & Diagnosis of Dental Caries CHEN Zhi Wuhan University School of Stomatology

Current concepts of Caries Dental caries is a specific infectious microbiological disease of the teeth that results in localized dissolution and destruction of the calcified tissues Germfree animals do not get caries

Current concepts of Caries • Dental caries is a specific infectious microbiological disease of the teeth that results in localized dissolution and destruction of the calcified tissues. Germfree animals do not get caries

Current concepts of caries etiology Micro organisms no no caries caries host Sub tooth strate nO no sarte carl time

Current concepts of caries etiology Micro￾organisms host & tooth Sub￾caries strate time no caries no caries no caries no caries

Current concepts of Caries The disease process begins with the concentration of mutans streptococcus at specified tooth surfaces and may lead to white spot formation or even cavitation 6

Current concepts of Caries • The disease process begins with the concentration of mutans streptococcus at specified tooth surfaces and may lead to white spot formation or even cavitation

Current concepts of Caries The development of dental caries is a dynamic process of demineralization of the dental hard tissues by the products of bacterial metabolism, alternating with periods of remineralization Harris and christen 《 Primary Preventive Dentistry》,1995

Current concepts of Caries The development of dental caries is a dynamic process of demineralization of the dental hard tissues by the products of bacterial metabolism, alternating with periods of remineralization. Harris and Christen 《 Primary Preventive Dentistry》, 1995

Classification according to the progression rate according to the involving site y according to the severity y according to the previous treatment

Classification ➢ according to the progression rate ➢ according to the involving site ➢ according to the severity ➢ according to the previous treatment

Classification according to the progression rate Acute caries Active caries Rampant caries Chronic caries Arrested caries Arrested caries Secondary caries

Classification according to the progression rate Acute caries Rampant caries Chronic caries Arrested caries Secondary caries Active caries Arrested caries

Acute Caries progress fast, often in children and teenagers light colored cavity

Acute Caries progress fast, often in children and teenagers, light colored cavity

Rampant Caries Caries in a patient with rpas.e mpaired salivary function as result of radiation therapy (Drs Jansma and Vissink

Rampant Caries Caries in a patient with impaired salivary function as result of radiation therapy (Drs Jansma and Vissink)

Rampant caries, many tooth involved at same time with acute caries feature often accompanied by systematic disorder, such as Sjogren syndrome or saliva reduction after radiation 西T智

Rampant caries, many tooth involved at same time with acute caries feature often accompanied by systematic disorder, such as Sjogren syndrome or saliva reduction after radiation