Alencar Fernanda G, Kronbauer Giulia C, Gomes Sabrina C
Universidade Luterana do Brasil.
Acta Odontol Latinoam. 2011;24(1):29-34.
The volume of crevicular fluid is directly proportional to the degree ofperiodontal inflammation. The Periopaper system, with readings taken using the Periotron, has gained wide acceptance in the literature for measuring this volume. Alternative methods have also been proposed. This study investigated an alternative device for measuring the volume and compared it to the readings taken in Periotron Units (PU). Strips of absorbent paper (PS) of the same size as Periopapers (P) were obtained. Next, previously defined volumes were quantified in PU (R1: P and R2: PS) and also in millimeters (T1: P; T2: PS) using an alternative reading method (ruler and magnifying glass). The mean measurements for each volume were compared (Student's t test) and no difference was detected between them in PU (R1=66.8 and R2=72.5) or in millimeters (T1=2.83 and T2=2.96). The degree of correlation between groups was evaluated using Pearson's coefficient, with an intragroup r of 0.98 (R1xT1; R2xT2; R1xT2). Linear regression coefficients were also calculated, finding R1xT1=23.5; R2xT2=26.5 and R1xT2=23.3. The method's reproducibility was verified using intraclass correlation coefficients, with excellent results--all above 0.96. This being so, it was concluded that it is possible to measure the volume collected in millimeters, with a high degree of reproducibility.
龈沟液的量与牙周炎症程度直接相关。使用牙周测量仪获取读数的Periopaper系统在测量该液体量方面已在文献中获得广泛认可。也有人提出了其他方法。本研究调查了一种用于测量该液体量的替代装置，并将其与牙周测量仪单位（PU）的读数进行比较。获得了与Periopaper（P）尺寸相同的吸水纸条（PS）。接下来，使用一种替代读数方法（尺子和放大镜），以PU（R1：P和R2：PS）以及毫米（T1：P；T2：PS）为单位对预先定义的液体量进行量化。比较了每个液体量的平均测量值（学生t检验），在PU（R1 = 66.8和R2 = 72.5）或毫米（T1 = 2.83和T2 = 2.96）方面未检测到它们之间存在差异。使用皮尔逊系数评估组间相关性程度，组内r为0.98（R1xT1；R2xT2；R1xT2）。还计算了线性回归系数，得出R1xT1 = 23.5；R2xT2 = 26.5和R1xT2 = 23.3。使用组内相关系数验证了该方法的可重复性，结果极佳——均高于0.96。因此得出结论，以毫米为单位测量收集的液体量是可行的，且具有高度可重复性。
