论文部分内容阅读
龋齿俗称“虫牙”或“”蛀牙“。龋齿可使牙组织破坏,发生牙痛,丧失咀嚼能力,严重时可发生牙髓炎、牙周脓肿、颌骨骨髓炎等并发症,危害全身健康。不论乳牙或恒牙都可以发生龋齿,病变的进程一般都很缓慢。龋齿初期患者不感疼痛,当龋洞发展到牙本质时,遇到冷、热、酸、咸、甜的食物时才发生疼痛(一般是酸痛)。如果龋洞较深,与牙髓接近或蛀穿到于髓,上述性质的刺激可引起难以忍受的酸痛。龋洞内经常有食物嵌入,发出腐败难闻的臭气。随着龋洞不断地扩大,牙冠就会一块块地崩溃,最后只留下残余牙根。
Dental caries commonly known as ”tooth insects“ or ”tooth decay." Dental caries can cause tooth damage, the occurrence of toothache, loss of ability to chew, severe cases can occur pulpitis, periodontal abscess, jaw osteomyelitis and other complications, Endangering the health of the body.Decay teeth can occur both deciduous or permanent teeth, the progress of the disease are generally very slow .Dental caries early patients do not feel pain, when the development of the carious cavity to dentin, encounter cold, hot, sour, salty, sweet food (Usually sore) .If the cavities are deep, close to the pulp or pierce into the pulp, the stimuli of the above properties can cause unpleasant soreness. As the carious cavity continues to expand, the crowns collapse, leaving only residual roots.