摘要
目的:比较4种不同消毒剂对义齿基托树脂性能影响。方法:将长方体基托树脂试件75片,随机分成5组,每组15片,自来水浸泡(A组),0.12%洗必泰浸泡(B组),75%酒精浸泡(C组),保丽净假牙清洁片溶液浸泡(D组),0.5%碘伏浸泡(E组),观察并检测试件颜色(ΔE)、表面粗糙度(Ra)、表面微观形貌、弯曲强度测试、吸水值和溶解值的改变。结果:不同消毒剂处理后基托树脂试件颜色的改变(ΔE)、表面粗糙度(Ra)差异有统计学意义(P<0.05)。C组基托树脂试件的表面可观察到明显的裂纹,较其他组有明显的差异;E组有明显染色现象,B组可观察到轻微染色现象。与A组相比,C组的吸水值和溶解值差异有统计学意义(P<0.05)。各组基托树脂的弯曲强度与A组比较,差异均无统计学意义(P>0.05)。结论:保丽净假牙清洁片溶液浸泡对树脂试件表面粗糙度、吸水度、溶解度、弯曲强度等性能影响均较小,推荐作为义齿树脂基托的消毒方法。
Objective:To compare the effects of four kinds of disinfectants on the properties of" denture base resins.Methods :Seventy-five rectangular samples were randomly divided into 5 groups ( each group of 15 samples ) that were immersed in running water ( group A) ,0.12 % chlorhexidine ( group B ) ,7 5 % alcohol ( group C ) , Polident denture cleanser solution ( group D ), and 0. 5 % iodine volts soak ( group E ) , respectively. The surface roughness (Ra) , color change ( △E ), surtace morphology, flexural strength, water absorption and solubility of the samples were detected. Results:The color(△E) and surface roughness (Ra) of group B, E changed significantly, compared with group A ( P 〈 0. 05 ). Obvious cracks can be observed on the surfacial microstructure of the group C, compared with other 4 groups ( P 〈 0. 05 ). Group E exhibited obvious dyeing, and group B showed minor dyeing. Group C showed significant water absorption and solubility value, compared with group A ( P 〈 0. 05 ). There was no significant difference in bending strength among all groups. Conclusion : Polident denture cleanser showed least effects on the color stability, surface roughness ,flexural strength ,water absorption and water solubility of denture resins, and could been recommended for denture cleaning.
出处
《临床口腔医学杂志》
2017年第5期266-269,共4页
Journal of Clinical Stomatology
基金
广西教育厅基金项目(KY2016YB100)
关键词
基托树脂
义齿消毒剂
表面粗糙度
弯曲强度
吸水性
溶解性
Denture base resin
Denture disinfectant
Surface roughness
Flexural strength
Water sorption
Water