华西口腔医学杂志

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氟对镍钛弓丝色泽的影响

马长柏1 刘新强2 李金华3   

  1. 1.杭州师范大学附属医院口腔科, 浙江杭州310015;2.青岛大学医学院附属医院口腔正畸科, 山东青岛266012; 3.杭州市第一人民医院口腔科, 浙江杭州310000
  • 收稿日期:2009-12-25 修回日期:2009-12-25 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 刘新强,Tel:0532-82911225
  • 作者简介:马长柏(1980—),男,河北人,住院医师,硕士

Color changes induced by fluoride on nickel-titanium orthodontic wires

MA Chang-bai1, LIU Xin-qiang2, LI Jin-hua3   

  1. 1. Dept. of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China; 2. Dept. of Orthodontics, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266012, China; 3. Dept. of Stomatology, The First People′s Hospital of Hangzhou, Hangzhou 310000, China
  • Received:2009-12-25 Revised:2009-12-25 Online:2009-12-20 Published:2009-12-20
  • Contact: LIU Xin-qiang,Tel:0532-82911225

摘要:

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。

关键词: 氟, 镍钛弓丝, 色泽

Abstract:

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.

Key words: fluoride, nickel-titanium orthodontic wire, color