本文探索了老年牙周病患者血清铜、锌、钙元素含量及铜/锌比值的关系,血清铜、锌明显低于正常对照组(P<0.001),而铜/锌比值则高于正常对照组,有显著性差异(P<0.001)。血清钙接近正常对照组,二者无显著差异(P>0.05)。提示老年人体内微量元素铜、锌的减少及铜/锌比值的变化可能影响牙周组织细胞的机能和营养,导致牙周病。适当增补富锌、铜食物是有益的。 This paper explored the relationship between serum copper, zinc, calcium and copper / zinc ratio in elderly patients with periodontal disease. The levels of copper and zinc in serum were significantly lower than those in normal control group (P <0.001) Group, there was significant difference (P <0.001). Serum calcium close to the normal control group, no significant difference between the two (P> 0.05). Prompted the elderly body of trace elements copper, zinc and copper / zinc ratio changes may affect the periodontal tissue cells function and nutrition, resulting in periodontal disease. Appropriate to supplement zinc-rich, copper food is beneficial.