摘要
目的探讨牙本质无机物在牙本质粘接过程中的作用。方法采用几种不同的牙本质处理方法,测试分析了牙本质与4META/MMATBB树脂之间的抗张粘接强度(tensilebondingstrength,TBS)。结果选用10%柠檬酸和3%三氯化铁组成的酸盐体系预处理液(acidsaltpretreatingsolutionsystem,APSS)去除牙本质污染层,再用次氯酸钠溶解牙本质胶原。暴露牙本质无机物时,牙本质的抗张粘接强度为593MPa,明显高于用蒸馏水冲洗的对照组(371MPa)(P<005)。
Objective In order to investigated the effect of dentin inorganic material during dentin bond.Methods This study investigated the tensile bond strength (TBS) between 4 META/MMA TBB resin and dentin treated with several dentin treating methods.Results When the dentin was treated with acid salt pretreating solution system (APSS) consisting of 10% citric acid and 3% ferric chloride to remove smear layer, and then re treated with NaOCl to resolve dentin collagen and reveal dentin inorganic material, TBS of the dentin was 5.93MPa, and higher than that of control group (3.71Mpa) ( P <0 05) whose dentin was treated with distilled water only.Conclusion It was suggested that dentin inorganic material did play a proper role in dentin bond.
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
1998年第5期306-308,共3页
Chinese Journal of Stomatology
关键词
无机物
牙本质粘接
牙本质无机物
Dentin hydroapatite Acid salt pretreating solution system Tensile bonding strength