乳牙外伤分析课件

《乳牙外伤分析课件》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Traumaofprimaryteeth乳牙外伤Tooth　fractureCrownfracture冠折•Enamelfracture:noneedtreatment•Dentinefracturewithoutpulpexposure:indirectpulpcapping间接盖髓术•Dentinefracturewithpulpexposure:directpulpcapping直接盖髓术pulpectomywithendodontictreatment牙髓摘除术（根管治疗）Rootfracture:根折surgicalremovalDisplacemen

2、t移位Intrusion挫入Lateralluxation侧向移位reeruptionorremoval恒牙胚受损伤可能发生：萌出异常牙冠形成异常牙根形成异常恒牙胚发育停止Totalextrusion完全脱位Dentalcariesinthechild乳牙龋病Riskfactor乳牙易患龋的因素形态结构特点自洁饮食结构龋Characteristicsofdentalcariesinthechild乳牙龋病的特点患龋率高，发病早龋齿多发，龋坏范围广龋蚀发展速度快自觉症状不明显修复性牙本质的形成活跃Harm局部影响：chewingfunctionpermanentt

3、eethmucousmembraneofmouthandsofttissues全身影响：nutritionintakefocalinfectionPhonationbeautypsycheClinicalexhibition乳牙龋蚀常见类型及临床表现奶瓶龋环状龋猖獗性龋奶瓶龋milkbottlecariesnursingbottlecariesbottlefeedingcariesBBTDBabybottletoothdecayECCEarlychildhoodcareis环状龋circularcaries猖獗性龋rampantcaries“Suddenlyap

4、pearing,widespread,rapidlyburrowingtypeofcaries,resultinginearlyinvolvementofthepulpandaffectingthoseteethusuallyregardedasimmunetoordinarydecay,suchasthemandibularanteriors”-----MasslerTherapy治疗Stopandprotect终止龋蚀进展，保护牙髓活力Avoid避免并发症Restore恢复外形和功能Medication药物治疗Indication适应证：广泛浅龋，环状龋，不

5、易制备洞形者Commonlyuseddrug常用药物：Ammoniasilvernitrate氨硝酸银Fluoride氟化物类Mechanism：堵塞牙本质小管抑制细菌生长繁殖增加抗酸性机理修整外形清洁干燥牙面、隔湿涂药procedure操作步骤注意事项：征得患者家属同意注意保护口腔软组织定期复查不能恢复牙体外形，仅能控制龋蚀进展Restoration充填治疗治疗特点：钻针切削会使釉面龟裂多发，走向复杂硬组织薄，易切削，易穿髓牙髓组织对切削反应敏感，且出现变化早生理间隙特点决定不必勉强恢复接触点洞形制备要求不如恒牙严格ClassⅠcavityClassⅡcavi

6、tyClassⅢcavityClassⅣcavityClassⅤcavityManagementofdeepcariesofprimaryteeth乳牙深龋治疗两种观点：保存活髓Indirectpulpcapping间接盖髓术不保髓Treatmentprinciple治疗原则保牙不保髓Pulpmummufication干髓术Restorationofproximal-incisalcariesinprimaryanteriorteeth乳前牙近切端缺损Preformedstainlesssteelbands预成不锈钢带环Estheticresinrestorat

7、ion树脂Stainlesssteelcrowns不锈钢成品冠Inlay嵌体Endodonticsofprimaryteeth乳牙牙髓根尖周病治疗Clinicalcharacteristic牙髓病特点诊断困难症状与疾病进展程度不一致多呈慢性炎症过程牙髓炎常伴发根尖周症状牙髓炎症常引起根管内吸收可引起牙根病理性吸收，致牙齿过早脱落症状：toothache，cavity，pustule脓包检查：深龋穿髓或未穿髓温度试验不可靠可同时伴随根分叉脓肿或根尖区红肿叩痛和轻度松动X－rayBriefsummaryManagementoftraumatoprimaryteeth

8、Toothfractur