纳米无机载银磷酸锆对树脂基托理化性能的影响  

Effect of Nano-silver Inorganic Zirconium Phosphate on Physical and Chemical Properties of Denture Base Resin

作　　者：翟羽翔 杨成雪 陈林[3] ZHAI Yu-xiang;YANG Cheng-xue;CHEN Lin(Department of Alveolar Surgery,Stomatolagical Hospital Affiliated to Zunyi Medical College,Zunyi563000,China;Department of Dental Implant,Stomatolagical Hospital Affiliated to Zunyi Medical College,Zunyi563000,China;Department of Prosthodontis,Stomatolagical Hospital Affiliated to Zunyi Medical College,Zunyi563000,China.)

机构地区：[1]遵义医学院附属口腔医院牙槽外科,贵州遵义563003 [2]遵义医学院附属口腔医院种植科,贵州遵义563003 [3]遵义医学院附属口腔医院修复科,贵州遵义563003

出　　处：《口腔医学研究》2018年第12期1351-1355,共5页Journal of Oral Science Research

基　　金：贵州省口腔医学研究生创新基地项目[编号:黔科研合CXJD字(2014)005];贵州省遵义市红花岗区科技局项目(编号:ky2015-34#)

摘　　要：目的:探讨纳米无机载银磷酸锆对可摘局部义齿(Removable Partial Dentures,RPDs)树脂基托理化性能的影响。方法:采用树脂基托注塑的方法,将纳米无机载银磷酸锆按1%、3%、5%、7%浓度添加到树脂基托中,未添加做对照组(0%)。按照相应的国家标准分别对其表面硬度、弯曲强度、压缩强度、拉伸强度、吸水值及溶解值、红外线光谱进行检测。结果:添加浓度7%时,表面硬度最大为(164.60±6.83)MPa,与对照组比差异具有统计学意义(P<0.05)。与1%浓度组相比,3%浓度组弯曲强度增加为(97.53±10.00)MPa,压缩强度为(316.00±9.89)MPa拉伸强度达到(64.86±5.02)MPa,差异均具有统计学意义(P<0.05)。各组之间吸水值及溶解值无显著变化(P>0.05)。红外线光谱分析显示各添加剂组红外谱图上550cm-1波长左右多了一个峰,为磷酸根基团。结论:纳米载银磷酸锆的添加浓度为3%时树脂基托的综合理化能最好;且采用红外谱图分析发现树脂基托里面成功添加了纳米载银磷酸锆。Objective:To investigate the effects of nano-silver inorganic zirconium phosphate on physical and chemical properties of denture base resin.Methods:Nano-inorganic silver zirconium phosphate was added into the resin base at concentrations of1%,3%,5%and7%,and without additive as a control group(0%).The surface hardness,flexural strength,compressive strength,tensile strength,water absorption value,dissolved value,and infrared spectrum were measured according to the national standards.Results:The maximum hardness was(164.60±6.83)MPa in7%group.Compared with control group,each adding group showed significantly differences(P<0.05).Compared with1%group,the flexural strength of3%group reached(97.53±10.00)MPa,the compression strength reached(316.00±9.89)MPa,and the tensile strength reached(64.86±5.02)MPa(P<0.05).There was no significant change in water absorption and dissolution between the groups(P>0.05).In addition,there was a peak at about550cm-1wavelength on the infrared spectrum of each addition group,which was assigned to phosphate group.Conclusion:The resin base got the best physical and chemical properties at3%nano-silver inorganic zirconium phosphate.Infrared spectrum analysis showed that nano-supported silver zirconium phosphate was successfully added to PMMA.

关 键 词：可摘局部义齿 改性树脂基托 抗菌剂 理化性能 

分 类 号：R783.1[医药卫生—口腔医学]