镍铬合金烤瓷冠、贵金属烤瓷冠和金沉积烤瓷冠修复体对基牙牙周组织的影响

Influence of nichrome,precious metal and gold deposition crown on the paradentium of abutment

目的比较镍铬合金烤瓷冠、贵金属烤瓷冠和金沉积烤瓷冠对基牙牙周组织的影响。方法选择2010年1月至2013年6月在襄阳市第一人民医院进行牙齿烤瓷冠修复患者102例(294颗牙齿),其中应用镍铬合金烤瓷冠(镍铬合金烤瓷冠组)33例(98颗牙齿),贵金属烤瓷冠(贵金属烤瓷冠组)35例(98颗牙齿),金沉积烤瓷冠(金沉积烤瓷冠组)34例(98颗牙齿),分别于修复前及修复后12个月观察比较3组患者的牙龈指数、菌斑指数和出血指数,并比较3组患者烤瓷冠边缘牙龈色泽变化和不良反应情况。结果修复前3组患者牙龈指数、菌斑指数及出血指数比较差异均无统计学意义(P>0.05);修复后12个月,金沉积烤瓷冠组患者牙龈指数、菌斑指数和出血指数显著低于贵金属烤瓷冠组和镍铬合金烤瓷冠组(P<0.05),贵金属烤瓷冠组患者牙龈指数、菌斑指数和出血指数显著低于镍铬合金烤瓷冠组(P<0.05)。镍铬合金烤瓷冠组、贵金属烤瓷冠组和金沉积烤瓷冠组患者烤瓷冠边缘牙龈变色率分别为14.29%(14/98)、4.08%(4/98)和2.04%(2/98),不良反应发生率分别为23.47%(23/98)、12.24%(12/98)和2.04%(2/98);金沉积烤瓷冠组患者烤瓷冠边缘牙龈变色率和不良反应发生率显著低于镍铬合金烤瓷冠组和贵金属烤瓷冠组(P<0.05),贵金属烤瓷冠组患者烤瓷冠边缘牙龈变色率和不良反应发生率显著低于镍铬合金烤瓷冠组(P<0.05)。结论金沉积烤瓷冠和贵金属烤瓷冠修复体对基牙牙周组织的适合性更高。

Objective To compare the influence of nichrome,precious metal and gold deposition crown on the paradentium of abutment. Methods A total of 102 patients（ 294 teeth） who underwent oral rehabilitation with ceramic crown were selected in the First People＇s Hospital of Xiangyang City from January 2010 to June 2013. Among the patients,33 cases（ 98teeth） were treated with nichrome crown（ nichrome crown group）,35 cases（ 98 teeth） were treated with precious metal crown（ precious metal crown group）,and 34 cases（ 98 teeth） were treated with gold deposition crown（ gold deposition crown group）.The gum index,plaque index and bleeding index were compared among the three groups before and 12 months after treatment.The gingival discolouration and adverse reaction were compared in the three groups. Results There was no significant difference in the gum index,plaque index and bleeding index among the three groups before treatment（ P〈0. 05）. Twelve months after treatment,the gum index,plaque index and bleeding index in gold deposition crown group were significantly lower than those in precious metal crown group and nichrome crown group（ P〈0. 05）; the gum index,plaque index and bleeding index in precious metal crown group were significantly lower than those in nichrome crown group（ P〈0. 05）. The gingival discolouration rate in nichrome crown group,precious metal crown group and gold deposition crown group was 14. 29%（ 14 /98）,4. 08%（ 4 /98） and 2. 04%（ 2 /98） respectively; and the incidence rate of adverse reaction was 23. 47%（ 23 /98）,12. 24%（ 12 /98） and2. 04%（ 2 /98） respectively; the gingival discolouration rate and the incidence rate of adverse reaction in gold deposition crown group were significantly lower than those in precious metal crown group and nichrome crown group（ P〈0. 05）; and the gingival discolouration rate and the incidence rate of adverse reaction in precious metal crown group were significantly lower than those in nichrome crown group（ P〈0. 05）. Conclusion The gold deposition crown and precious metal crown are more suitable to the paradentium of abutment.