Number of patients with dental and oral diseases Japan 2020, by classification

Number of patients receiving treatments for dental and oral diseases in Japan in 2020, by disease classification

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Release date

June 2022



Survey time period

2020; as of October

Supplementary notes

The survey was conducted at medical facilities on one designated date set for each institution from three days in October.

The number of patients refers to those who were continuously receiving medical treatment (including those who did not receive medical treatment at medical institutions on the dates of the survey) calculated by the following formula:
number of patients receiving medical treatment = estimated number of inpatients + estimated number of initial visit outpatients + (estimated number of return visit outpatients × average interval since last visit × adjustment factor (6/7))

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