How to become a Dental Hygienist
Works under a dentist's direct supervision to prevent diseases of the teeth and gums such as tooth decay and gum disease, assists the dentist with treatment and gives dental health guidance.
Main tasks
- Handling reception, payments and insurance billing at a dental clinic
- Asking patients simple questions before treatment
- Removing tartar, deposits and stains from the teeth and gums with dental instruments
- Checking for gum pockets and signs of gum disease using dental products
- Sealing the grooves on the surface of children's adult teeth to prevent decay
- Applying fluoride and other decay-preventing agents to stop teeth decaying
- Preparing the dental chair and managing the materials and medicines the dentist uses
- Operating dental equipment as the dentist directs
- Mixing impression putty and fitting and removing impressions and temporary fillings
- Recording the state of the mouth and the treatment given in the patient's records during the dentist's examination and treatment
- Disinfecting dental equipment
- Teaching patients about oral hygiene and explaining what to do at home
- Assisting at check-ups for babies and young children and advising mothers
- Teaching tooth brushing at schools to improve children's oral hygiene and prevent decay
- Giving oral care during home visits and at aged care facilities and telling families and staff how things are
- Supporting orthodontic treatment
- Repairing false teeth
- Spotting signs of neglect from the state of a child's mouth and reporting it to the local council or child guidance centre
- Making various applications to government on patients' behalf
- Preparing documents for home dental hygiene guidance and home care management
- Cleaning and disinfecting the clinic and keeping it in good order
Workers in this job say vocational college (senmon gakko) is common. From job tag's survey of people in each job, who could give several answers. It shows what workers see as common, not how many workers hold each level.
How to become one
You need to graduate from a dental hygienist training institution, pass the national dental hygienist exam and get a licence. Training courses last three years or more. The curriculum covers general education subjects, basic specialist subjects such as anatomy and oral health, and specialist subjects including clinical placements. Dental hygienists need an interest in and knowledge of medicine, especially dentistry, and the fine skills to remove deposits from teeth and apply medicines in the mouth. You also need to be considerate towards patients and able to explain things clearly when guiding and advising them. Dental hygienist associations and others run training for working hygienists, so you can keep learning new knowledge and skills.
Ways in
- Vocational college, junior college, kosen and trade skills tests: Vocational college (専門学校) course: Dental hygiene. 専修学校 courses in 歯科衛生 (医療関係) had 6,240 graduates in the 2024 school year, 5,705 of whom started work in a related field (School Basic Survey 2025, table 237). Course matched to the occupation by Peernovo.
- National licence or qualification: Listed by job tag as a qualification related to this job (関連資格): 歯科衛生士. Needed to do this job (Peernovo, from job tag's entry description). English name and classification by Peernovo.
Pay · Job openings · AI and this job
- Average annual income: ¥3,960,300 Private sector only: employers with 10 or more staff. Public servants, such as public school teachers and police officers, are not in these figures.
- Monthly base pay (before overtime and bonus): median ¥280,400, and the middle half earn ¥247,000 to ¥298,100 a month.
- 3.08 job openings per applicant at Hello Work (2025). A current demand signal, not a projection. It counts only the jobs and job seekers registered at Hello Work, Japan's public employment offices, and many graduate and professional hires never pass through it.
- Generative AI can do relatively little of this work, by the ILO's global estimate.
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Questions people ask
How do I become a Dental Hygienist?
You need to graduate from a dental hygienist training institution, pass the national dental hygienist exam and get a licence. Training courses last three years or more. The curriculum covers general education subjects, basic specialist subjects such as anatomy and oral health, and specialist subjects including clinical placements. Dental hygienists need an interest in and knowledge of medicine, especially dentistry, and the fine skills to remove deposits from teeth and apply medicines in the mouth. You also need to be considerate towards patients and able to explain things clearly when guiding and advising them. Dental hygienist associations and others run training for working hygienists, so you can keep learning new knowledge and skills.
How much does a Dental Hygienist earn in Japan?
Average annual income in the private sector, bonus included, is ¥3,960,300 (Ministry of Health, Labour and Welfare).
Do you need a degree to become a Dental Hygienist?
Usually not. In this job's census occupation group, only 5% of workers are university graduates. Ways in include: Vocational college (専門学校) course: Dental hygiene.
Will AI change the work of a Dental Hygienist?
Generative AI can do relatively little of this work, by the ILO's global estimate.
Sources
- JILPT (職業情報データベース) via MHLW job tag: job tag download data: 解説系 (descriptions, how to become, related qualifications) and 簡易版数値系 (interests, tasks, education) (解説系 ver.7.01 (2026-06-04); 簡易版数値系 ver.7.00 (2026-03-17)), retrieved 4 October 2026
- Ministry of Health, Labour and Welfare: Basic Survey on Wage Structure (賃金構造基本統計調査) 2025: earnings by occupation (2025 survey (June 2025 pay, 2024 bonus), published 2026-03-24), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- Ministry of Health, Labour and Welfare: Employment Referrals for General Workers (一般職業紹介状況): Hello Work job-openings-to-applicants ratio by occupation (2025 annual (release of 2026-10-02)), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- Statistics Bureau of Japan (MIC): 2020 Population Census (令和2年国勢調査) detailed sample tabulation: employed by occupation, sex, age and education (2020 Census (tables 9-1 and 15-1, published 2022-12-27)), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026
独立行政法人労働政策研究・研修機構（JILPT）作成 職業情報データベース 解説系ダウンロードデータ（IPD_DL_description_7_01.xlsx）ver.7.01 職業情報提供サイト（job tag）より2026年10月4日にダウンロード（https://shigoto.mhlw.go.jp/User/download）を加工して作成
独立行政法人労働政策研究・研修機構（JILPT）作成 職業情報データベース 簡易版数値系ダウンロードデータ（IPD_DL_numeric_7_00.xlsx）ver.7.00 職業情報提供サイト（job tag）より2026年10月4日にダウンロード（https://shigoto.mhlw.go.jp/User/download）を加工して作成
Sources: JILPT Occupational Information Database download data via job tag (解説系 ver.7.01 and 簡易版数値系 ver.7.00, downloaded 4 October 2026), processed by Peernovo; MHLW, Basic Survey on Wage Structure 2025; Statistics Bureau of Japan, 2020 Population Census; MEXT, School Basic Survey 2025; MHLW, Employment Referrals for General Workers (Hello Work statistics). Figures processed by Peernovo. English job names, translations and the matching of jobs to statistical groups, schools and degree fields by Peernovo.
Updated 4 October 2026