Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan.
Shimabukuro Dental Clinic, 1-5-6 Tezukayamahigashi, Sumiyoshi-ku, Osaka, 558-0054, Japan.
Sci Rep. 2022 Jul 13;12(1):11893. doi: 10.1038/s41598-022-15462-6.
The new 2018 classification of periodontal diseases is reported to be related to tooth loss due to periodontal disease (TLPD) during supportive periodontal therapy (SPT). However, few reports have evaluated this relationship for Asians or have analyzed the association of the new classification and TLPD by distinguishing between active periodontal therapy (APT) and SPT. In this study, we retrospectively applied the new classification to 607 Japanese periodontitis patients and examined the relationship between the new classification and annual TLPD rates per patient during the respective periods. TLPD rates were higher in patients in stage IV and/or grade C during both APT and SPT. TLPD during SPT was not associated with the presence or absence of TLPD during APT. Multivariate analysis revealed that stage IV and grade C as independent variables were significantly associated with the number of instances of TLPD not only during the total treatment period, but also during APT or SPT. Our results suggest that the new classification has a significantly strong association with TLPD during both APT and SPT, and that patients diagnosed with stage IV and/or grade C periodontitis had a higher risk of TLPD during both periods.
新的 2018 年牙周病分类报告称与支持性牙周治疗（SPT）期间因牙周病导致的牙齿丧失（TLPD）有关。然而，很少有报告评估这种关系对于亚洲人，或者通过区分活跃牙周治疗（APT）和 SPT 来分析新分类与 TLPD 的关联。在这项研究中，我们回顾性地将新分类应用于 607 名日本牙周炎患者，并检查了新分类与各个时期每位患者每年 TLPD 率之间的关系。在 APT 和 SPT 期间，处于 IV 期和/或 C 级的患者 TLPD 率更高。SPT 期间的 TLPD 与 APT 期间是否存在 TLPD 无关。多变量分析显示，IV 期和 C 级作为独立变量与 TLPD 的次数显著相关，不仅在整个治疗期间，而且在 APT 或 SPT 期间也是如此。我们的结果表明，新分类与 APT 和 SPT 期间的 TLPD 具有显著的强相关性，并且诊断为 IV 期和/或 C 级牙周炎的患者在两个时期都有更高的 TLPD 风险。
