【正文】 Dep. of Operative Dentistry amp。 Endodontics School of Stomatology Fourth Military Medical University Cariology Wang Hanguo Contents Selfintroduction Caries Biological basis of Operative Dentistry Cavity Preparation Research papers Selfintroduction prefix dent , denta 牙 ,齒 dental 牙的 dental caries 齲 dental materials 牙科材料 dentalloy 牙合金 denti , dento 牙 , 齒 dentist 牙科醫(yī)生 dentistry 牙科學(xué) dentition 牙列 Operative Dentistry 牙體修復(fù) (手術(shù) )學(xué) odonto, odont 牙 , 齒 Odontology 牙科學(xué) endo, end 內(nèi) ,在內(nèi) ,內(nèi)部 endodontics 牙髓病學(xué) peri 周?chē)?,鄰近 periodontology 牙周病學(xué) ped(o) 與兒童有關(guān)的 pedodontics 兒童牙科學(xué) Conservative Dentistry ? Operative Dentistry amp。 Endodontics ? Periodontology amp。 Oral Medicine ? Pedodontics Department of Conservative Dentistry Operative Dentistry amp。 Endodonics stomato, stomat 口 、 口腔 stomatic 口腔的 Stomatology 口腔 (醫(yī) )學(xué) School of Stomatology 口腔醫(yī)學(xué)院 stomatological 口腔醫(yī)學(xué)的 stomatitis 口腔炎 oral 口的 ─ cavity 口腔 ─ microflora 口腔菌叢 ─ hygiene 口腔衛(wèi)生 oralogy 口腔學(xué) in vitro 離體 (在活體外 ) in vivo 在體 (在活體內(nèi) ) in situ 原位 Permanent dentition Caries Clinical Appearance Characteristics Process of caries Demineralization of apatites Deposition of anic substance Discoloration Disintegration of tooth structure Cavitation Definition Dental caries, or tooth decay, is a pathological process of localized destruction of tooth tissue by microanisms. It is an irreversible, slowly progressive decay of the hard tissues of individual teeth characterized by demineralization of apatites and deposition of anic substance which leads to a disintegration of tooth structures and cavitation. Susceptible sites Susceptible teeth molar premolar incisor canine Classification Developmental stage Superficial Moderate Deep Symptom? Irritating/stimulating pain Spontaneous pain ?Caries ?Pulpitis ?Periapical desease Developmental speed Chronic caries Acute caries rampant caries Arrested caries Treated or not primary caries secondary caries Etiology Multifactorial disease Host: teeth amp。 saliva Microflora Substrate Time Four factors must be acting concurrently Conditions within each of these factors must be favorable : bacteria ── cariogenic substrate ── suitable host ─── susceptible time ─── sufficient Selwitz RH, Ismail AI, Pitts NB. Dental caries. Lancet. 2022 Jan 6。369(9555):519. 公元 11年（ 4f腫瘤 fbb癌癥 yuw3胃癌 d65io腸癌 .f2tr肺癌 65ff） (西漢王莽新朝三年 )，是中國(guó)古老的實(shí)證醫(yī)學(xué)萌芽。由于儒、釋、