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目的了解慢性牙周炎患者磁性附着体基牙的牙周状况。方法选取2009年1月至2011年1月于中国医科大学附属口腔医院口腔修复门诊接受治疗的19例慢性牙周炎患者的45颗磁性附着体基牙作为研究对象,修复后随访观察3年,比较磁性附着体基牙在义齿修复前后的牙周袋探诊深度(PD)、牙齿松动度及义齿的稳定性状况。结果磁性附着体基牙在口内3年的存留率达91.11%。磁性附着体基牙在义齿修复前及修复3年后的PD值分别为(2.17±0.77)mm和(1.89±0.67)mm,修复后较修复前的PD值减小,差异有统计学意义(P<0.05)。部分基牙松动度在义齿修复3年后较修复前增大,可能与可摘局部义齿功能稳定性变差有关(P<0.05)。结论磁性附着体义齿对慢性牙周炎患者的弱基牙有保护作用。
Objective To understand the periodontal status of magnetic attachment abutment in patients with chronic periodontitis. Methods From January 2009 to January 2011, 45 magnetic attachment abutments of 19 patients with chronic periodontitis treated at the Dental Hospital of Stomatology Hospital of China Medical University from January 2009 to January 2011 were selected as the study objects. After 3 years of follow-up, The probing depth (PD), the degree of dental mobility and the denture stability of the magnetic attachment abutment before and after the denture restoration were compared. Results The survival rate of magnetic attachment abutment in the mouth for 3 years was 91.11%. The PD values of magnetic attachment abutments before and 3 years after prosthesis restoration were (2.17 ± 0.77) mm and (1.89 ± 0.67) mm, respectively. The PD values before repair were lower than those before repair, the difference was statistically significant ( P <0.05). The degree of partial abutment loosening increased 3 years after the denture was repaired, which may be related to the deterioration of the functional stability of the removable partial denture (P <0.05). Conclusion Magnetic attachment denture has protective effect on the weak abutment in patients with chronic periodontitis.