牙周炎性组织表面积对牙周炎症的检测价值分析

Diagnostic value of periodontal inflamed surface area for periodontitis

目的利用运算表格计算牙周炎患者的牙周炎性组织表面积（periodontalinflamedsurfacearea，PISA），探讨PISA对牙周炎症的检测价值。方法选取76名牙周炎患者、93名健康人为研究对象，对其进行全口牙周检查，计算PISA及PD用以评价PISA对牙周炎症的检测价值。结果两组间年龄（t=1．230，P=0．220）、性别（X2〈0．001，P=0．988）差异无统计学意义。分别以PISA、PD为检验变量，以是否为牙周炎为状态变量，绘制ROC曲线，PISA、PD的ROC曲线下面积（95％CI）分别为0．959（0．928～0．990）、0．905（0．851～0．958）。结论PISA可以作为检测、衡量牙周炎症负荷的的有效指标，为临床牙周组织炎症的检测和量化提供了新的思路。

Objective To calculate periodontal inflamed surface area（PISA） of periodontitis patients using the operation table, so as to explore the diagnostic value of periodontal inflamed surface area in pdriodontitis. Methods Seventy - six periodontitis patients （case group） and 93 healthy controls （control group） were involved to calculate the PD and PISA to evaluate the exami- nation value of PISA. Results The difference had no statistical significance in age （ t = 1. 230, P = 0.220） and gender （X2 〈 0.001, P = 0. 988） between the two groups. When taking PISA and PD as test variable and periodontitis as state variable, the corresponding AUC （95% CI） of PISA and PD were 0.959 （0. 928 -0.990）, 0.905 （0. 851 -0. 958）. Conclusion PISA is an effective index for testing and measuring the status of periodontal tissue, providing a new method for the detection and quanti- fication of clinical periodontal inflammation.