CAJ | 학술논문

目的：通过检测正畸常用弓丝偶合后的电化学参数，对其电偶腐蚀性能进行综合评价，以探讨正畸常用合金的不同组合方式对合金耐腐蚀性能的影响。方法：采用经典三电极体系的电化学方法，在人工唾液中检测正畸常用不锈钢弓丝（SS）、镍钛丝（NiTi）、β－钛丝（β－Ti）及钴铬丝（CoCr）相互偶合后在人工唾液中的电偶电流密度，研究其电偶腐蚀行为。结果：在人工唾液中，不锈钢弓丝与其它3种弓丝偶合后产生的电偶电流密度大小顺序为SS＋NiTi＞SS＋β－Ti＞SS＋CoCr，各组数据间均有显著性差异。结论：在人工唾液中，弓丝组成电偶对后均会发生电偶腐蚀，产生相应的电偶腐蚀电流。
목적：통과검측정기상용궁사우합후적전화학삼수，대기전우부식성능진행종합평개，이탐토정기상용합금적불동조합방식대합금내부식성능적영향。방법：채용경전삼전겁체계적전화학방법，재인공타액중검측정기상용불수강궁사（SS）、얼태사（NiTi）、β－태사（β－Ti）급고락사（CoCr）상호우합후재인공타액중적전우전류밀도，연구기전우부식행위。결과：재인공타액중，불수강궁사여기타3충궁사우합후산생적전우전류밀도대소순서위SS＋NiTi＞SS＋β－Ti＞SS＋CoCr，각조수거간균유현저성차이。결론：재인공타액중，궁사조성전우대후균회발생전우부식，산생상응적전우부식전류。
Objective:After detecting the electrochemical parameter of orthodontic arch wires ,to get the composite e-valuation of the galvanic corrosion. So that we can find out the different types of the general alloy of orthodontic and the in-flection to the alloy corrosion prevention. Method:Adopt the classic three-electrodes system of electrochemical method to detect the galvanic couple current density of stainless steel archwire,NiTi-archwire,β-Ti- archwire and CoCr-archwire,so that we can find out the the phenomenon of galvanic corrosion in artificial saliva. Result:In the artificial saliva,the se-quence of current density of three galvanic couples was SS+NiTi>SS+β-Ti>SS+CoCr. The statistic results of each group had significant difference (P <0.01). Conclusion:In artificial saliva,after the stainless steel archwire be combined with three kinds of arch wires. All of them will produce relative galvanic corrosion current.