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KMID : 1044820240540020075
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Journal of Periodontal & Implant Science
2024 Volume.54 No. 2 p.75 ~ p.84
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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
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Mizuho Yamazaki-Takai
Yumi Saito
Shoichi Ito
Moe Ogihara-Takeda
Tsuyoshi Katsumata
Ryo Kobayashi
Shuta Nakagawa
Tomoko Nishino
Namiko Fukuoka
Kota Hosono
Mai Yamasaki
Yosuke Yamazaki
Yuto Tsuruya
Arisa Yamaguchi
Yorimasa Ogata
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Abstract
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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.
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KEYWORD
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COVID-19, Inflammation, Maintenance, Periodontitis, Risk assessment
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