Ken Osaka

4.1k total citations
166 papers, 2.9k citations indexed

About

Ken Osaka is a scholar working on Periodontics, Health and General Health Professions. According to data from OpenAlex, Ken Osaka has authored 166 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Periodontics, 48 papers in Health and 44 papers in General Health Professions. Recurrent topics in Ken Osaka's work include Dental Health and Care Utilization (71 papers), Health disparities and outcomes (45 papers) and Geriatric Care and Nursing Homes (15 papers). Ken Osaka is often cited by papers focused on Dental Health and Care Utilization (71 papers), Health disparities and outcomes (45 papers) and Geriatric Care and Nursing Homes (15 papers). Ken Osaka collaborates with scholars based in Japan, United Kingdom and United States. Ken Osaka's co-authors include Jun Aida, Katsunori Kondo, Toru Tsuboya, Shihoko Koyama, Richard G. Watt, Tatsuo Yamamoto, Kenji Takeuchi, Yusuke Matsuyama, Taro Kusama and Hiroshi Hirai and has published in prestigious journals such as PLoS ONE, Scientific Reports and American Journal of Epidemiology.

In The Last Decade

Ken Osaka

151 papers receiving 2.8k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ken Osaka Japan	31	1.1k	904	810	362	310	166	2.9k
Efigênia Ferreira e Ferreira Brazil	29	981 0.9×	356 0.4×	891 1.1×	115 0.3×	195 0.6×	226	2.9k
Cléa Adas Salíba Garbin Brazil	25	773 0.7×	305 0.3×	745 0.9×	127 0.4×	155 0.5×	392	2.7k
David S. Brennan Australia	32	2.5k 2.4×	446 0.5×	1.5k 1.9×	177 0.5×	115 0.4×	200	3.8k
Anne Nordrehaug Åstrøm Norway	35	1.9k 1.8×	229 0.3×	855 1.1×	162 0.4×	197 0.6×	161	3.9k
Ratilal Lalloo Australia	26	1.5k 1.4×	181 0.2×	565 0.7×	176 0.5×	133 0.4×	138	2.6k
Anders Halling Sweden	25	471 0.4×	142 0.2×	410 0.5×	183 0.5×	79 0.3×	121	2.4k
Woosung Sohn United States	36	3.0k 2.9×	267 0.3×	1.2k 1.4×	223 0.6×	234 0.8×	133	5.0k
Jeffrey J. Stoddard United States	31	164 0.2×	324 0.4×	1.5k 1.8×	297 0.8×	308 1.0×	56	3.7k
Vânia Naomi Hirakata Brazil	22	152 0.1×	515 0.6×	1.2k 1.4×	476 1.3×	508 1.6×	100	4.6k
Peter G. Robinson United Kingdom	39	2.7k 2.6×	231 0.3×	1.2k 1.5×	271 0.7×	182 0.6×	164	4.8k

Countries citing papers authored by Ken Osaka

Since Specialization

Citations

This map shows the geographic impact of Ken Osaka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ken Osaka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ken Osaka more than expected).

Fields of papers citing papers by Ken Osaka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ken Osaka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ken Osaka. The network helps show where Ken Osaka may publish in the future.

Co-authorship network of co-authors of Ken Osaka

This figure shows the co-authorship network connecting the top 25 collaborators of Ken Osaka. A scholar is included among the top collaborators of Ken Osaka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ken Osaka. Ken Osaka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Takeuchi, Kenji, et al.. (2025). Removable partial denture, complete denture, and fixed partial denture use and health-related quality of life among older adults with tooth loss: A JAGES cross-sectional study. Journal of Prosthodontic Research. 70(1). 109–117.

Kusama, Taro, Sakura Kiuchi, Masashige Saito, et al.. (2025). Tooth loss, dental prosthesis use, and cause-specific mortality in older Japanese adults: a 7-year cohort study. Scientific Reports. 15(1). 40650–40650.

Kino, Yasushi, Tsutomu Sekine, Toshitaka Oka, et al.. (2025). Development of an electron spin resonance spectroscopy code for measuring carbonate radicals in tooth enamel and verification of its practicality using irradiated Japanese macaque teeth. International Journal of Radiation Biology. 1–8.

Kudo, Yoko, Kenji Takeuchi, Taro Kusama, et al.. (2024). Differences in prevalence of self‐reported oral hypofunction between older adult patients with rheumatoid arthritis and the general older population: A cross‐sectional study using propensity score matching. Journal of Oral Rehabilitation. 51(6). 924–930. 3 indexed citations

Kusama, Taro, et al.. (2024). 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. 34(11). 553–559. 1 indexed citations

Kusama, Taro, et al.. (2024). Tooth loss mediates the association between smoking and an increased risk of dementia among older adults: The JAGES prospective cohort study. Journal Of Clinical Periodontology. 51(12). 1610–1618.

Kiuchi, Sakura, Kumi Nakaya, Upul Cooray, et al.. (2024). A Principal Component Analysis of Metabolome and Cognitive Decline Among Japanese Older Adults: Cross-sectional Analysis Using Tohoku Medical Megabank Cohort Study Data. Journal of Epidemiology. 35(1). 39–46.

Ikeda, Takaaki, et al.. (2023). In-hospital Rehabilitation Therapy Outcomes in Adult Down’s Syndrome Patients with Community-acquired Pneumonia: A Nationwide Observational Study. Progress in Rehabilitation Medicine. 8(0). n/a–n/a.

Kusama, Taro, Kenji Takeuchi, Sakura Kiuchi, et al.. (2023). Dental prosthesis use is associated with higher protein intake among older adults with tooth loss. Journal of Oral Rehabilitation. 50(11). 1229–1238. 9 indexed citations

10.

Takeuchi, Kenji, et al.. (2023). The role of science communication and academic health advocacy in improving population oral health and tackling inequalities. Community Dentistry And Oral Epidemiology. 51(4). 606–608. 2 indexed citations

11.

Takeuchi, Kenji, et al.. (2022). Association Between Toothbrushing Habits and COVID-19 Symptoms. International Dental Journal. 73(2). 302–310. 3 indexed citations

12.

Ikeda, Takaaki, et al.. (2021). Maintaining Moderate or Vigorous Exercise Reduces the Risk of Low Back Pain at 4 Years of Follow-Up: Evidence From the English Longitudinal Study of Ageing. Journal of Pain. 23(3). 390–397. 9 indexed citations

13.

Kusama, Taro, Takafumi Yamamoto, Sakura Kiuchi, et al.. (2021). Association of poor dental status with eating alone: A cross-sectional Japan gerontological evaluation study among independent older adults. Appetite. 168. 105732–105732. 11 indexed citations

14.

Kiuchi, Sakura, Upul Cooray, Taro Kusama, et al.. (2021). Oral Status and Dementia Onset: Mediation of Nutritional and Social Factors. Journal of Dental Research. 101(4). 420–427. 33 indexed citations

15.

Kusama, Taro, Noriko Nakazawa, Sakura Kiuchi, et al.. (2021). Dental prosthetic treatment reduced the risk of weight loss among older adults with tooth loss. Journal of the American Geriatrics Society. 69(9). 2498–2506. 19 indexed citations

16.

Aida, Jun, et al.. (2021). Oral status and homebound status: A 6‐year bidirectional exploratory prospective cohort study. Oral Diseases. 29(3). 1291–1298. 12 indexed citations

17.

Oka, Toshitaka, Yasushi Kino, Tsutomu Sekine, et al.. (2020). External exposure dose estimation by electron spin resonance technique for wild Japanese macaque captured in Fukushima Prefecture. Radiation Measurements. 134. 106315–106315. 6 indexed citations

18.

Aida, Jun, Hiroyuki Hikichi, Yusuke Matsuyama, et al.. (2017). Risk of mortality during and after the 2011 Great East Japan Earthquake and Tsunami among older coastal residents. Scientific Reports. 7(1). 16591–16591. 33 indexed citations

19.

Kino, Yasushi, Toshihiko Suzuki, Yoshinaka Shimizu, et al.. (2017). 90 Sr specific activity of teeth of abandoned cattle after the Fukushima accident – teeth as an indicator of environmental pollution. Journal of Environmental Radioactivity. 183. 1–6. 13 indexed citations

20.

Matsui, Tamano, Michael H. Kramer, James M. Mendlein, et al.. (2003). Evaluation of National Tsutsugamushi Disease Surveillance-Japan, 2000. Japanese Journal of Infectious Diseases. 55(6). 197–203. 24 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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