root canal therapy根管治疗 apical infection樱尖感染 apical syst根尖囊肿 caries幅齿 dental plaque菌疑 dental root fracture根折 denticulus,dentide dentoalveolar abscess牙槽脓钟 istula apicalis根尖康管 gingival abscess牙银脓肿 occusion咬合 palate得 periapical abscess根尖获肿 periapical disease根尖周病 pericoronitis置周炎 permanent teeth恒牙 pulp horn鞋角 root resorption牙根吸收 teeth牙齿 toothache牙猜 wedge-shaped erosion楔状缺损 dental caries n. dental floss牙钱 brown spot lesion棕褐色的，褐色症损害 remineralization再矿化 interproximal a,邻面 discoloration n.变色 4 root canal therapy 根管治疗 apical infection 根尖感染 apical syst 根尖囊肿 caries 龋齿 dental plaque 菌斑 dental root fracture 根折 denticulus,denticle 髓石 dentoalveolar abscess 牙槽脓肿 fistula apicalis 根尖瘘管 gingival abscess 牙龈脓肿 occlusion 咬合 palate 腭 periapical abscess 根尖脓肿 periapical disease 根尖周病 pericoronitis 冠周炎 permanent teeth 恒牙 pulp horn 髓角 root resorption 牙根吸收 teeth 牙齿 toothache 牙痛 wedge-shaped erosion 楔状缺损 dental caries n. 龋 dental floss 牙线 brown spot lesion 棕褐色的，褐色班损害 remineralization 再矿化 interproximal a. 邻面 discoloration n. 变色