Observational studyBMJ open2022
Trends in dental visits during the state of emergency for COVID-19 in Japan: a retrospective observational study.
Observational study in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Evolving Trends in Dental Services in Aging Japan: An Age-Period-Cohort Analysis Using Nationwide Data from Fiscal Years 2016 to 2023.Dentistry journal · 2026Article
- COVID-19 and access to subsidized dental care according to household income. A register-based population study from Norway.Acta odontologica Scandinavica · 2025Article
- Effects of Public Disclosure of a Japanese Celebrity's Oral Cancer: Trends in Oral Cancer Diagnoses.Oral diseases · 2025Article
- Who Could Be Targeted for Teledentistry in Japanese Clinics? A Questionnaire Survey of Patients.Journal of public health dentistry · 2025Article
- Treatment Behaviors of Patients With Odontogenic Infections During the COVID-19 Pandemic.Cureus · 2025Article
- Factors Influencing the Choice of Conservative and Surgical Procedures in Dental Patients from Poland: A Single-Center Retrospective Analysis.Journal of clinical medicine · 2025Article
- Influence of Type of Dental Visit on the Incidence of COVID-19 and Related Hospitalisation Among Older People in Japan.International journal of environmental research and public health · 2024Article
- Changes in the Utilization of Outpatient and Visiting Dental Care and Per-attendance Care Cost by Age Groups During COVID-19 Pandemic Waves in Japan: A Time-series Analysis From the LIFE Study.Journal of epidemiology · 2024Article
- Long- and Short-Term Trends in Outpatient Attendance by Speciality in Japan: A Joinpoint Regression Analysis in the Context of the COVID-19 Pandemic.International journal of environmental research and public health · 2023Observational
- Assessment of oral emergency services during COVID-19: a retrospective study of 14,885 cases in Shanghai.BMC oral health · 2023Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo determine national medium-term trends in dental visits during three COVID-19 emergency declaration periods in Japan and to analyse how these trends varied according to prefectural emergency measures and COVID-19 incidence. DESIGN AND
settingA retrospective observational study of Japan's dental claims from January 2017 to December 2021. DATA SOURCES: Data from a monthly report by the Health Insurance Claims Review and Reimbursement Services (HICRRS) in Japan. HICRRS handles the claims of employer-based health insurance. DATA ANALYSIS: We determined the number of monthly dental claims nationwide from January 2017 to December 2021 and the percentage change in the number of monthly dental claims based on the difference in the COVID-19 alert level between the three emergency declaration periods in 2020-2021 and the corresponding periods in 2019. Results were analysed using descriptive statistics, multiple regression model, graphical figures, and narrative synthesis. OUTCOME MEASURES: The main outcome was the change in the number of dental visits between the emergency declaration periods in 2020-2021 and the corresponding periods in 2019. We also assessed the difference in the number of dental visits based on the COVID-19 alert level.
resultsThe data set included a total of 736 946 088 dental claims. Until the end of 2021, the greatest decrease in monthly dental claims was in April 2020, which was 22.3% lower than that in April 2019. As indicated by the coefficient in the regression model, the percentage change in monthly dental claims decreased by 5.01% (95% CI -8.27 to -1.74) depending on the difference between the prefectures designated as being under special precautions and other prefectures.
conclusionsThe decrease in dental visits was greater during the first state of emergency, ie, April-May 2020, and in prefectures designated as being under special precautions. Further efforts to promote appropriate dental visits at different alert levels are necessary.
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