龋齿

龋病DentalCaries概述GeneralDescription龋病DentalCaries是指在以细菌为主的因素影响下，牙体硬组织发生慢性进行性破坏的一种病。特征牙体硬组织的病理改变临床特征危害口腔病灶亚急性细菌性心内膜炎视网膜脉络炎关节炎破坏咀嚼器官的完整性妨碍消化功能营养缺乏影响生长发育龋病牙髓病根尖周病颌骨炎症颌面部间隙感染颅内感染病因Etiology1962Keyes:Threeprerequisitesforcariesprocess1976Newbrum:Fourprerequisitesforcariesprocess+time三联因素论四联因素论致龋菌易感牙齿食物龋易感牙齿致龋菌食物时间龋CARIES（一）细菌菌斑Bacterialplaque证据1954Orland无菌鼠实验未萌出的牙无龋致病菌及其特征致龋菌：变性链球菌乳杆菌放线菌属特征：产酸能力耐酸能力附着能力Noplaque,Nocaries（二）食物FoodFermentablecarbohydrates,especiallysucrose易于发酵的碳水化合物，尤其是蔗糖（三）宿主HostSusceptibletoothsurface易感的牙齿表面（四）时间Time分类与诊断ClassificationandDiagnosis（一）按进展速度分类Bycariousprogression1、急性龋Acutecaries猛性龋Rampantcaries2、慢性龋Chroniccaries静止龋Arrestedcaries3、继发龋Secondarycaries继发龋慢性龋（二）按解剖部位分类Byanatomy窝沟龋平面龋1、窝沟龋和平滑面龋Pitandfissurecaries&smooth-surfacecaries2、根面龋Rootcaries3、线形釉质龋Linearenamelcaries（三）按病变深度分类Bycariousdepth2.中龋Middlecaries1.浅龋Shallowcaries3.深龋Deepcaries1、化学疗法Chemicaltherapy2、再矿化疗法Remineralizativetherapy3、窝沟封闭Pitandfissuresealing4、修复性治疗Restorativetherapy治疗前治疗后窝沟封闭治疗Treatment小结Conclusion1、龋病是与饮食有关的感染性疾病Thedentalcariesisadietrelatedinfectiousdisease.2、龋病在临床上主要表现为牙表面色、形、质的改变。Clinicalsignsofdentalcariesarethechangesofdentalsurfaceincolorationmineralcontentandcavitation.3、对已成洞的龋损必须通过手术的方法去除病损，然后用生物相容性材料修复缺损部分俗话称堵牙。Cariouslesionsthatarecavitatedaretreatedtraditionallybypreparationandrestoration.Thanksforyourattention!