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Subfield · Dentistry

Periodontics research

Periodontics is a subfield of Dentistry. Science Explorer counts 124k research works in it since 1950. 9.9% of them reached the world's top 10% most cited for their field and year.

In short: field of dentistry.

Research works
124k
fractional, since 1950
In the world top 10%
12k
per year above
Top-10% rate
9.9%
share of its works in the world top 10%
Topics
4
Growth, 2018-21 → 2022-25
+24%
the tick is no change
Largest producer
India
26% of the 10 largest, 2022-now
Periodontics

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

What is Periodontics research about, and what is growing?

By the world's output in 2021-25, its most used keywords are Dental Caries, Epidemiology, Risk Factors, Oral Microbiome, Periodontal Diseases, Oral Health. Gaining share since 2011-15: Dental, Treatment, Oral Health.

▲ gaining share of this field◆ holding its share▼ losing share

Size is the world's fractional works in 2021-25 in the topics tagged with each word; colour compares the word's share of this field with 2011-15. Each links to the topic it comes from most.

All 12 words, with their numbers
  1. Dental Caries27k◆ 0.96×2 topics
  2. Epidemiology19k◆ 0.93×2 topics
  3. Risk Factors19k◆ 0.93×2 topics
  4. Oral Microbiome16k◆ 0.94×1 topic
  5. Periodontal Diseases16k◆ 0.94×1 topic
  6. Oral Health14k▲ 1.17×2 topics
  7. Global Burden11k◆ 0.98×1 topic
  8. Prevention11k◆ 0.98×1 topic
  9. Oral Mucosal Disorders7,543◆ 0.87×1 topic
  10. Potentially Malignant Disorders7,543◆ 0.87×1 topic
  11. Dental3,071▲ 3.9×1 topic
  12. Treatment3,071▲ 3.9×1 topic

Which countries lead Periodontics research?

On research quality in 2022-now, China, the United States and the United Kingdom rank highest in Periodontics. By volume, India and China publish the most (5.6k and 4.1k works in 2022-now).

By research quality, 2022-now

  1. 1 China #2 all time 1.66× citation excellence · 1.54× journals · 100% breadth 20.4% top 10% · 3.4k works
  2. 2 United States #1 all time 1.09× citation excellence · 2.02× journals · 100% breadth 12.2% top 10% · 2.8k works
  3. 3 United Kingdom #3 all time 1.23× citation excellence · 1.44× journals · 100% breadth 13.2% top 10% · 925 works
  4. 4 Germany #4 all time 1.56× citation excellence · 1.39× journals · 100% breadth 15.0% top 10% · 588 works
  5. 5 Australia #7 all time 1.36× citation excellence · 1.23× journals · 100% breadth 14.3% top 10% · 434 works
  6. 6 Italy #14 all time 2.15× citation excellence · 0.63× journals · 100% breadth 24.7% top 10% · 592 works
  7. 7 Spain #10 all time 1.63× citation excellence · 0.99× journals · 100% breadth 14.6% top 10% · 437 works
  8. 8 Netherlands #5 all time 1.60× citation excellence · 1.49× journals · 100% breadth 18.1% top 10% · 218 works
  9. 9 Japan #13 all time 0.92× citation excellence · 1.00× journals · 100% breadth 8.4% top 10% · 873 works
  10. 10 France #8 all time 1.40× citation excellence · 1.28× journals · 100% breadth 12.0% top 10% · 267 works

The track on each row is that row's top-10% rate. The ranking itself is the quality score, which compares the rate with what each place's own topics predict, adds its share of papers in the Nature Index journals, and counts output and breadth too.

Of 30 countries ranked in Periodontics. Ranked on the quality score for 2022-now; the bracket is the all-time rank.

All countries ranked in Periodontics

By volume, 2022-now

  1. 1 India 5.6k works
  2. 2 China 4.1k works
  3. 3 United States 3.3k works
  4. 4 Brazil 2.2k works
  5. 5 Indonesia 1.3k works
  6. 6 United Kingdom 1.1k works
  7. 7 Japan 1k works
  8. 8 Türkiye 1k works
  9. 9 Iran 852 works
  10. 10 Saudi Arabia 834 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

India: 26.2%China: 19.2%United States: 15.6%Brazil: 10.3%6 others listed: 28.7%26%largest
India5,580 · 26.2%China4,094 · 19.2%United States3,317 · 15.6%Brazil2,203 · 10.3%6 others listed6,129 · 28.7%

Shares of the rows listed above, not of the whole node.

Which institutions lead Periodontics research?

Sichuan University (China) ranks first in Periodontics on research quality in 2022-now, followed by Harvard University and University of Hong Kong.

By research quality, 2022-now

  1. 1 Sichuan University China · Chengdu · #2 all time 27.1% top 10% · 239 works
  2. 2 Harvard University United States · Cambridge · #1 all time 18.9% top 10% · 93 works
  3. 3 University of Hong Kong China · Pok Fu Lam · #3 all time 25.2% top 10% · 108 works
  4. 4 Shanghai Jiao Tong University China · Shanghai · #11 all time 21.2% top 10% · 132 works
  5. 5 University of Michigan United States · Ann Arbor · #4 all time 21.3% top 10% · 66 works
  6. 6 Stomatology Hospital China · Xi'an · #24 all time 21.0% top 10% · 179 works
  7. 7 Wuhan University China · Wuhan · #10 all time 29.2% top 10% · 69 works
  8. 8 Peking University China · Beijing · #17 all time 19.3% top 10% · 78 works
  9. 9 King's College London United Kingdom · London · #19 all time 17.4% top 10% · 98 works
  10. 10 Fudan University China · Shanghai · #42 all time 19.1% top 10% · 79 works

The track on each row is that row's top-10% rate. The ranking itself is the quality score, which compares the rate with what each place's own topics predict, adds its share of papers in the Nature Index journals, and counts output and breadth too.

Of 41 institutions above the floor of 40 fractional works in Periodontics.

Top 100 Periodontics institutions

By volume, 2022-now

  1. 1 Saveetha UniversityIndia 618 works
  2. 2 Sichuan UniversityChina 265 works
  3. 3 Stomatology HospitalChina 220 works
  4. 4 Universidade de São PauloBrazil 177 works
  5. 5 Shanghai Jiao Tong UniversityChina 149 works
  6. 6 University of BaghdadIraq 143 works
  7. 7 Kamineni Institute of Dental SciencesIndia 137 works
  8. 8 University of Hong KongChina 126 works
  9. 9 Airlangga UniversityIndonesia 122 works
  10. 10 All India Institute of Medical SciencesIndia 119 works

Who are the leading researchers in Periodontics?

Counting only their work in Periodontics, S. S. Socransky, Robert J. Genco and Maurizio S. Tonetti have the most papers in the world top 10% for their subfield and year beyond the 10% expected.

  1. 1 S. S. Socransky United States · #5,923 worldwide overall 58.5 of 126 papers here in the top 10%
  2. 2 Robert J. Genco United States · #21,832 worldwide overall 61.8 of 139 papers here in the top 10%
  3. 3 Maurizio S. Tonetti China · #4,423 worldwide overall 46.2 of 95 papers here in the top 10%
  4. 4 Saman Warnakulasuriya United Kingdom · #47,624 worldwide overall 41.1 of 122 papers here in the top 10%
  5. 5 Steven Offenbacher United States · #43,456 worldwide overall 41.7 of 129 papers here in the top 10%
  6. 6 Edward Chin Man Lo China · #40,437 worldwide overall 40.2 of 127 papers here in the top 10%
  7. 7 Jan Lindhe Sweden · #7,393 worldwide overall 37.5 of 94 papers here in the top 10%
  8. 8 Falk Schwendicke Germany · #5,223 worldwide overall 37.7 of 112 papers here in the top 10%
  9. 9 James D. Beck United States · #97,506 worldwide overall 39.1 of 132 papers here in the top 10%
  10. 10 Thomas E. Van Dyke United States · #61,010 worldwide overall 39.3 of 107 papers here in the top 10%

Ranked on their work in Periodontics alone: how many more of their papers here reached the world top 10% for their subfield and year than the 10% expected, among 366,444 ranked researchers with a paper here. Each paper counts once, so many strong papers outrank one famous one, and a long record of ordinary papers does not climb. Identities come from OpenAlex author disambiguation, which occasionally merges or splits people.

Top 100 Periodontics researchers

What are the most cited papers in Periodontics?

The most cited paper in Periodontics is "APACHE II-A Severity of Disease Classification System" (William A. Knaus, Elizabeth A. Draper, Douglas P. Wagner et al., 1986), with 13,426 citations. Next come "Bacterial Biofilms: A Common Cause of Persistent Infections" (12,236) and "The biofilm matrix" (10,070).

Most cited papers
#PaperReleasedCitations
1 APACHE II-A Severity of Disease Classification System William A. Knaus, Elizabeth A. Draper, Douglas P. Wagner et al. · Critical Care Medicine Aug 1986 13,426
2 Bacterial Biofilms: A Common Cause of Persistent Infections John William Costerton, Philip Shook Stewart, Everett Peter Greenberg · Science 21 May 1999 12,236
3 The biofilm matrix Hans‐Curt Flemming, Jost Wingender · Nature Reviews Microbiology Review 2 Aug 2010 10,070
4 Periodontal Disease in Pregnancy II. Correlation Between Oral Hygiene and Periodontal Condition John Silness, Harald A. Löe · Acta Odontologica Scandinavica Open access 1964 7,977
5 Periodontal Disease in Pregnancy I. Prevalence and Severity Harald A. Löe, John Silness · Acta Odontologica Scandinavica Open access 1963 7,274
All 99 most cited papers, with filters and sorting

Where is Periodontics research done?

The largest centres of Periodontics research in 2022-now are Chennai (India), São Paulo (Brazil), Beijing (China) and London (United Kingdom). Among places with at least 20 works in it, it is an unusually large share of all research in Bubwith, Nalgonda and Medak.

Largest cities, 2022-now

  1. 1 ChennaiIndia 1.1k works
  2. 2 São PauloBrazil 456 works
  3. 3 BeijingChina 403 works
  4. 4 LondonUnited Kingdom 372 works
  5. 5 ShanghaiChina 352 works
  6. 6 Xi'anChina 330 works
  7. 7 RiyadhSaudi Arabia 300 works
  8. 8 SeoulSouth Korea 282 works
  9. 9 TokyoJapan 276 works
  10. 10 TehranIran 272 works

Where it is the local speciality

  1. BubwithGB · 23.9 works85×
  2. NalgondaIN · 137.0 works72×
  3. MedakIN · 57.7 works71×
  4. CaparicaPT · 25.8 works34×
  5. PimpriIN · 41.1 works34×
  6. DhuleIN · 26.7 works33×
  7. Rāj-NāndgaonIN · 20.4 works32×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Periodontics than the world average.

See Periodontics on the map

Periodontics research by country

The best places for Periodontics research inside each country, with that country's researchers and world standing.

Where is the best place to study Periodontics?

Among universities, judged by research, Sichuan University, Harvard University and University of Hong Kong score highest, combining standing in the field's ranking, citation excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 21.51%fractional works in this field (log) →share of work in the world top 10% →Sichuan UniversityUniversity of Hong K…University of MichiganHarvard University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Standingthis field's institution ranking, three quarters all time and a quarter 2022-now
50%
Citation excellenceshare of its work in the world top 10%, 2022-now and all time averaged
20%
Specialisationhow much of its work is in this field, counted up to 10× the world share
5%
Sizeits output in this field, on a log scale
15%
Growthoutput growth, counted from -20% to +20%
5%
Internationalshare of its work with a co-author abroad
5%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreRank in field (all time)Top 10%SpecialisationWorksGrowth
1Sichuan UniversityChina 81.1#1 (#2)25.9%4.0×265 +59.3%
2Harvard UniversityUnited States 77.4#2 (#1)18.4%1.1×106 +17.5%
3University of Hong KongChina 74.3#3 (#3)24.3%4.6×126 +14.8%
4University of MichiganUnited States 62.1#5 (#4)19.8%1.8×81 +12.1%
5Shanghai Jiao Tong UniversityChina 56.9#4 (#11)20.4%1.8×149 +90.6%
6Wuhan UniversityChina 56.9#7 (#10)28.6%1.9×81 +81.9%
7University of AmsterdamNetherlands 52.3#11 (#12)16.9%4.4×78 +13.7%
8University of PennsylvaniaUnited States 50.2- (#6)19.3%1.6×51 +39.3%
9Peking UniversityChina 48.1#8 (#17)18.3%1.4×85 +22.0%
10University of BernSwitzerland 47.4- (#18)23.2%3.5×56 +24.5%

Universities only. The score blends standing (50%), citation excellence (20%), size (15%), specialisation (5%), growth (5%), international reach (5%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise. Standing is the score in this field's institution ranking, three quarters over all time and a quarter 2022-now; excellence averages the two windows too. Four years alone undercount fields such as AI, where many conference and arXiv papers from 2022 on carry no affiliation in the data.

Every institution in Periodontics, country by country

Is Periodontics research growing?

Output in 2022-2025 was 24% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Scientific and Engineering Research Topics, Oral microbiology and periodontitis research and Dental Health and Care Utilization.

still counting19801990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Periodontics as a percentage of every work published that year, 0.13% in 2024.

still counting0.050%0.10%0.15%Periodontics0.15% in 202519801990200020102020

Fractional works of Periodontics over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Periodontics10.0% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.

  1. Scientific and Engineering Research Topics+78%
  2. Oral microbiology and periodontitis research+23%
  3. Dental Health and Care Utilization+21%
  4. Oral Health Pathology and Treatment+16%
← shrinkingno changegrowing →

Growth in output from 2018-21 to 2022-25. Every topic is a page of its own.

What does Periodontics include?

Oral microbiology and pe…54kOral microbiology and periodontitis research: 54k fractional worksDental Health and Care U…37kDental Health and Care Utilization: 37k fractional worksOral Health Pathology an…28kOral Health Pathology and Treatment: 28k fractional worksScientific and Engineeri…Scientific and Engineering Research Topics: 5,510 fractional works

Area is fractional works in that topic. Every name below is a page of its own.

Share who leads Periodontics

Who leads Periodontics, on Science Explorer

A card with the countries and institutions that lead Periodontics, for a post or a slide.

Download the card

1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

The leading institutions' badges6Each links to that institution's page and updates with every snapshot

Discussion

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