CAJ | 학술논문

目的研究氟对镍钛弓丝色泽的影响.方法将4种镍钛弓丝(IMD、SL、TP、YY)各40个样本,分为4个小组.其中1个为对照组,放入人工唾液中不作处理;3个为实验组,分别放入含有不同浓度氟离子(0.05%、0.10%、0.15%)的氟化人工唾液中进行处理,每天处理3次(早、中、晚),每次3 min,然后去离子水冲洗样本,去除残留的氟化物溶液后放回人工唾液试管中.28 d后取出样本,观察表面色泽变化和微观形态.结果随着氟离子浓度的增加,弓丝色泽的改变呈持续加重的趋势(P<0.05).氟离子浓度相同的条件下,IMD与YY色泽改变的差异无统计学意义,SL与TP的差异也无统计学意义(P＞0.05),但IMD和YY的色泽改变均明显高于SL和TP(P<0.01).结论镍钛弓丝的表面色泽变化随着氟离子浓度的上升而加重.不同品牌的镍钛弓丝在同一氟环境下色泽改变的情况不完全相同.
목적 연구불대얼태궁사색택적영향.방법 장4충얼태궁사(IMD、SL、TP、YY)각40개양본,분위4개소조.기중1개위대조조,방입인공타액중불작처리;3개위실험조,분별방입함유불동농도불리자(0.05%、0.10%、0.15%)적불화인공타액중진행처리,매천처리3차(조、중、만),매차3 min,연후거리자수충세양본,거제잔류적불화물용액후방회인공타액시관중.28 d후취출양본,관찰표면색택변화화미관형태.결과 수착불리자농도적증가,궁사색택적개변정지속가중적추세(P<0.05).불리자농도상동적조건하,IMD여YY색택개변적차이무통계학의의,SL여TP적차이야무통계학의의(P＞0.05),단IMD화YY적색택개변균명현고우SL화TP(P<0.01).결론 얼태궁사적표면색택변화수착불리자농도적상승이가중.불동품패적얼태궁사재동일불배경하색택개변적정황불완전상동.
Objective To observe the color changes of nickel-titanium(Ni-Ti)orthodontic wires induced by fluoride.Methods Each 40 samples of 4 kinds of nickel-titanium orthodontic wires(IMD,SL,TP,YY)were put into artificial saliva with sodium fluoride at different F~- concentrations(0.05%,0.10%,0.15%)and artificial saliva,separately.Dislodged the species and immersed them into artificial saliva with sodium fluoride for 3 minutes,then washed them with deionized water,and put back to artificial saliva,this course should be repeated 3 times per day.The whole immersion test lasted for 28 days.The color and micro-morphous changing were observed.Results The color changes came to be more serious as the F~- concentration growing (P<0.05).At the same F~- concentration,the color changes of IMD and YY were higher than SL and YP(P<0.01),while there were no significant difference between IMD and YY,SL and TP(P>0.05).Conclusion Fluoride can change the color of Ni-Ti wire.Different Ni-Ti wires get different changes at the same F~- concentration.