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University · Tokyo · Japan

Nippon Dental University

In research, Nippon Dental University stands highest in Health Sciences (#5,003 of 11,982 worldwide), Medicine (#8,390 of 10,443 worldwide) and Dentistry (#343 of 367 worldwide), 2022–2025. Relative to its size it is most specialised in Orthodontics, Oral Surgery and Dentistry — Orthodontics is 64.3× its share of world research.

ndu.ac.jp/enROR OpenAlex
World rank, 2022–2025
#13,795
of 28,054 · #10,002 all time
Rank in Japan
#365
of 1,070
Research works
3.3k
▲ 13% vs 2013–17
Citations
40k
12.1 per fractional work
Top-10% rate
6.3%
record average 16.5%
Open access
54%
world 28%

What is Nippon Dental University known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Health SciencesDomain #5,003 of 11,982 6.6%211 #3067
MedicineField #8,390 of 10,443 7.2%115 #6137
DentistryField #343 of 367 4.1%67 #325

Each strip is that field’s whole ranked pool, with the notch where Nippon Dental University sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Health Sciences#3,067 #5,003
  2. Medicine#6,137 #8,390
  3. Dentistry#325 #343
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Nippon Dental University specialise in?

Where its research is concentrated relative to its size: Orthodontics takes 64.3× the share of its output that it takes of world research.

  1. OrthodonticsSubfield · 20.8 works64×
  2. Oral SurgerySubfield · 27.3 works49×
  3. DentistryField · 66.7 works48×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.08× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.87× its world share, 29 worksBiochemistry, Geneti…Immunology and Microbiology: 1.18× its world share, 3 worksImmunology and Micro…Neuroscience: 1.43× its world share, 7 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.22× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 0.11× its world share, 0 worksChemical EngineeringChemistry: 1.71× its world share, 8 worksChemistryComputer Science: 0.08× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.07× its world share, 0 worksEarth and Planetary …Engineering: 0.35× its world share, 15 worksEngineeringEnvironmental Science: 0.09× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.23× its world share, 2 worksMaterials SciencePhysics and Astronomy: 0.12× its world share, 1 worksPhysics and AstronomyDentistry: 47.75× its world share, 67 worksDentistryHealth Professions: 3.34× its world share, 25 worksHealth ProfessionsMedicine: 2.08× its world share, 115 worksMedicineNursing: 2.38× its world share, 3 worksNursingVeterinary: 1.70× its world share, 1 worksVeterinaryArts and Humanities: 0.14× its world share, 1 worksArts and HumanitiesEconomics, Econometrics and Finance: 0.07× its world share, 0 worksEconomics, Econometr…Psychology: 0.44× its world share, 4 worksPsychologySocial Sciences: 0.02× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Dentistry, 47.8×. Every wedge is a field page.

Who are the top researchers at Nippon Dental University?

Ranked on the composite score, Takashi Kameda, Kiyoshi Konishi and Masaaki Ogawa lead among researchers whose main affiliation is Nippon Dental University.

  1. 1 Takashi Kameda Japan · #176,998 worldwide 91 citations · 31 works
  2. 2 Kiyoshi Konishi Japan · #223,629 worldwide 113 citations · 26 works
  3. 3 Masaaki Ogawa Japan · #245,443 worldwide 65 citations · 28 works
  4. 4 Takeshi Kikutani Japan · #255,694 worldwide 124 citations · 17 works
  5. 5 Yuko Aoki Japan · #512,182 worldwide 9 citations · 24 works
  6. 6 Iwao Sato Japan · #585,540 worldwide 65 citations · 41 works
  7. 7 正司 河野 Japan · #636,601 worldwide 0 citations · 17 works
  8. 8 Osami Morita Japan · #781,266 worldwide 24 citations · 21 works
  9. 9 徹 木竜 Japan · #782,480 worldwide 0 citations · 15 works
  10. 10 Hiroshi Ito Japan · #811,480 worldwide 2 citations · 21 works
All ranked researchers at Nippon Dental University

Which keywords describe research at Nippon Dental University?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Quality of Life, Epidemiology, Diagnostic Criteria, Inflammation, Dental Caries, Psychological Factors, Bone Regeneration and Prevention.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Epidemiology41▲ 3.6×45 topics
  2. Quality of Life34▲ 8.3×19 topics
  3. Inflammation22▲ 3.7×34 topics
  4. Diagnostic Criteria16▲ 26×4 topics
  5. Treatment14▲ 4.1×14 topics
  6. Dental Caries12▲ 44×2 topics
  7. Psychological Factors12▲ 20×4 topics
  8. Clinical Trials12▲ 6.1×8 topics
  9. Bone Regeneration12▲ 34×2 topics
  10. Prevention11▲ 9.0×8 topics
  11. Dental Materials11▲ 68×1 topic
  12. Restorative Dentistry11▲ 68×1 topic
  13. Radiotherapy10▲ 9.5×7 topics
  14. Risk Factors10▲ 3.2×8 topics
  15. Bruxism10▲ 124×1 topic
  16. Temporomandibular Disorders10▲ 124×1 topic
  17. Management10▲ 4.3×9 topics
  18. Clinical Practice Guidelines9▲ 5.9×8 topics
  19. Rehabilitation9▲ 7.9×6 topics
  20. Dental Implants8▲ 59×1 topic
  21. Peri-implant Diseases8▲ 59×1 topic
  22. Osteoporosis8▲ 33×2 topics
  23. Periodontal Disease8▲ 46×2 topics
  24. Cone-Beam CT8▲ 54×1 topic
  25. Dental Imaging8▲ 54×1 topic
  26. Biomaterials8▲ 11×3 topics
  27. Diabetes Mellitus7▲ 12×3 topics
  28. Orthognathic Surgery7▲ 51×2 topics
  29. Dental Esthetics7▲ 65×1 topic
  30. Orthodontic Tooth Movement7▲ 65×1 topic
  31. Lymphoma7▲ 15×2 topics
  32. Stroke7▲ 13×4 topics
  33. Angiogenesis7▲ 7.0×10 topics
  34. Bacterial Diversity7▲ 20×2 topics
  35. Cancer Treatment7▲ 9.8×5 topics
  36. Microbial Ecology7▲ 13×2 topics
  37. Oral Health6▲ 39×3 topics
  38. Autoimmune Disease6▲ 35×1 topic
  39. Saliva6▲ 94×1 topic
  40. Fluoride6▲ 40×1 topic

Which research topics does Nippon Dental University publish most on?

By volume in 2022–2025: Dental materials and restorations, Temporomandibular Joint Disorders, Dental Implant Techniques and Outcomes and Dental Radiography and Imaging.

Dental materials and res…11Dental materials and restorations: 11 fractional worksTemporomandibular Joint …10Temporomandibular Joint Disorders: 10 fractional worksDental Implant Technique…8Dental Implant Techniques and Outcomes: 8 fractional worksDental Radiography and I…8Dental Radiography and Imaging: 8 fractional worksOrthodontics and Dentofacial Orthopedics: 7 fractional worksSalivary Gland Disorders and Functions: 6 fractional worksOral microbiology and pe…6Oral microbiology and periodontitis research: 6 fractional worksDental Health and Care Utilization: 6 fractional worksDental Trauma and Treatments: 6 fractional worksDysphagia Assessment and…5Dysphagia Assessment and Management: 5 fractional works
OrthodonticsComplementary and Manual TherapyOral SurgeryPhysiology3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Dental materials and restorations Orthodontics 11 works
  2. 2 Temporomandibular Joint Disorders Complementary and Manual Therapy 10 works
  3. 3 Dental Implant Techniques and Outcomes Oral Surgery 8 works
  4. 4 Dental Radiography and Imaging Oral Surgery 8 works
  5. 5 Orthodontics and Dentofacial Orthopedics Orthodontics 7 works
  6. 6 Salivary Gland Disorders and Functions Physiology 6 works
  7. 7 Oral microbiology and periodontitis research Periodontics 6 works
  8. 8 Dental Health and Care Utilization Periodontics 6 works
  9. 9 Dental Trauma and Treatments Emergency Medical Services 6 works
  10. 10 Dysphagia Assessment and Management Speech and Hearing 5 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available54.0%not open46.0%

World: 28% of research is openly available.

with international co-authors8.3%domestic only91.7%

World: 19% is written across borders.

How has Nippon Dental University's research output changed?

Output in 2018–2022 was 13% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Tokyo

All research institutions in Tokyo

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.