Department of Periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France.
J Clin Periodontol. 2010 May;37(5):427-35. doi: 10.1111/j.1600-051X.2010.01553.x.
The aim of this study was to evaluate the long-term clinical predictive value of the periodontal risk assessment diagram surface (PRAS) score and the influence of patient compliance on the treatment outcomes.
Thirty subjects suffering from periodontitis were re-examined 6-12 years after the initial diagnosis and periodontal treatments. The baseline PRAS score was calculated from the initial clinical and radiograph records. Patients were then classified into a low-to-moderate (0-20) or a high-risk group (>20). Patients who did not attend any supportive periodontal therapy were classified into a non-compliant group. PRAS and compliance were correlated to the mean tooth loss (TL)/year and the mean variation in the number of periodontal pockets with a probing depth (PPD) >4 mm.
TL was 0.11 for the low-to-moderate-risk group and 0.26 for the high-risk group (p<0.05); PPD number reduction was 2.57 and 2.17, respectively, and bleeding on probing reduction was 6.7% and 23.3%, respectively. Comparing the compliance groups, the PPD number reduction was 3.39 in the compliant group and 1.40 in the non-compliant group (p<0.05).
This study showed the reliability of PRAS in evaluating long-term TL and patient susceptibility to periodontal disease. Our data confirmed the positive influence of patient compliance on periodontal treatment outcomes.
本研究旨在评估牙周风险评估图表面（PRAS）评分的长期临床预测价值，以及患者依从性对治疗结果的影响。
30 名患有牙周炎的患者在初始诊断和牙周治疗后 6-12 年再次接受检查。基线 PRAS 评分是根据初始临床和影像学记录计算得出的。然后，患者被分为低-中度（0-20）或高风险组（>20）。未接受任何支持性牙周治疗的患者被分为不依从组。将 PRAS 和依从性与平均每年牙齿缺失（TL）和探诊深度（PPD）>4mm的牙周袋数量的平均变化相关联。
低-中度风险组的 TL 为 0.11，高风险组为 0.26（p<0.05）；PPD 数量减少分别为 2.57 和 2.17，分别为 6.7%和 23.3%。比较依从性组，依从组的 PPD 数量减少为 3.39，不依从组为 1.40（p<0.05）。
本研究表明 PRAS 可可靠地评估长期 TL 和患者对牙周病的易感性。我们的数据证实了患者依从性对牙周治疗结果的积极影响。
