臭氧水溶液对牙本质微硬度影响的实验研究  

Effect of Ozonized Water on Dentin Micro Hardness of Human Teeth

作　　者：朱地 于海利 刘丽梅 

机构地区：[1]烟台市口腔医院牙体科,山东烟台264000

出　　处：《口腔医学研究》2015年第5期520-521,共2页Journal of Oral Science Research

摘　　要：目的:评价臭氧水溶液对根管内壁牙本质微硬度的影响。方法:选取40颗因正畸拔牙的离体前磨牙随机分为5组,A组:2.15mg/L臭氧水溶液组;B组:1%次氯酸钠组;C组:3%过氧化氢组;D组:15%EDTA组;E组:蒸馏水组(阴性对照组)。将牙冠于牙颈部截断后将牙冠沿牙体长轴纵向劈开暴露牙本质,以5组不同根管冲洗液分别处理5min、15min后用微硬度测试仪测定牙本质的微硬度。结果:1%次氯酸钠,3%过氧化氢,15%EDTA均降低了牙本质的微硬度,尤以15%EDTA为甚,而2.15mg/L臭氧水溶液对牙本质微硬度无明显影响。结论:2.15mg/L臭氧水溶液作为根管冲洗液对牙本质微硬度没有影响。Objective：To study the effect of ozonized water as endodontic irrigation solvents on dentin microhardness of human teeth.Methods：Extracted human premolar crowns were cut along long axis and treated with 2.15mg/L ozonized water,1%NaOCL,3%H2O2,15%EDTA and distilled water respectively for 5min and 15 min.The micro hardness of dentin was measured.Results：1%NaOCL,3%H2O2and 15%EDTA decreased the micro hardness of dentin,especially 15%EDTA,while ozonized water was harmless to dentin micro hardness.Conclusion：It is recommended to apply 2.15mg/L ozonized water as endodontic irrigation.

关 键 词：臭氧水溶液 根管冲洗液 牙本质 微硬度 

分 类 号：R781.05[医药卫生—口腔医学]