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Impact of COVID-19 spread on visit intervals and clinical parameters for patients with periodontitis in supportive periodontal therapy: a retrospective study

  • Mizuho Yamazaki-Takai (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Yumi Saito (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Shoichi Ito (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Moe Ogihara-Takeda (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Tsuyoshi Katsumata (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Ryo Kobayashi (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Shuta Nakagawa (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Tomoko Nishino (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Namiko Fukuoka (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Kota Hosono (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Mai Yamasaki (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Yosuke Yamazaki (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Yuto Tsuruya (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Arisa Yamaguchi (Department of Periodontology, Nihon University School of Dentistry at Matsudo) ;
  • Yorimasa Ogata (Department of Periodontology, Nihon University School of Dentistry at Matsudo)
  • 투고 : 2023.01.18
  • 심사 : 2023.04.30
  • 발행 : 2024.04.30

초록

Purpose: This study investigated the relationship between the number of days that hospital visits were postponed and changes in clinical parameters due to the spread of coronavirus disease 2019 (COVID-19), after the Japanese government declared a state of emergency in April 2020. Methods: Regarding the status of postponement of appointments, we analyzed the patients who had visited the Nihon University Hospital at Matsudo for more than 1 year for supportive periodontal therapy (SPT) and classified them into low-, moderate- and high-risk subgroups according to the periodontal risk assessment (PRA). Clinical parameters for periodontal disease such as probing depth (PD), full-mouth bleeding score (FMBS), full-mouth plaque score, periodontal inflamed surface area (PISA), and periodontal epithelial surface area (PESA) were analyzed in 2 periods, from October 2019 to March 2020 and after April 2020. Correlation coefficients between days of deferral and the degree of changes in clinical parameters were calculated. Results: The mean age of the 749 patients was 67.56±10.85 years, and 63.82% were female. Out of 749 patients, 33.24% deferred their SPT appointments after April 2020. The average total of postponement days was 109.49±88.84. The number of postponement days was positively correlated with changes in average PD (rs=0.474) and PESA (rs=0.443) in the high-risk subgroup of FMBS, and average PD (rs=0.293) and PESA (rs=0.253) in the highrisk subgroup of tooth number (TN). Patients belonging to the high-risk subgroups for both FMBS and TN had a positive correlation between postponement days and PISA (rs=0.56). Conclusions: The findings, the spread of COVID-19 appears to have extended the visit interval for some SPT patients. Moreover, longer visit intervals were correlated with the worsening of some clinical parameters for SPT patients with high PRA.

키워드

과제정보

This study was supported in part by the Japan Society for the Promotion of Science KAKENHI Grants, Grant-in-Aid for Scientific Research (C), No. 17K11994 and 20K09945 to YO, and Grant-in-Aid for Research Activity Start-up and Early-Career Scientists, No. 19K21385 and 21K16976 to MYT.

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