Purnima Kumar

13.1k citations

104 papers · 6.5k indexed · 1 hit paper · h-index 40

Impact in

Periodontics top 0.02%
- Oral microbiology and periodontitis research
- Oral Health Pathology and Treatment
- Dental Health and Care Utilization
Oral Surgery top 0.5%
- Dental Implant Techniques and Outcomes

Papers in ⓘ

Periodontics 66
- Oral microbiology and periodontitis research 61
- Oral Health Pathology and Treatment 19
- Dental Health and Care Utilization 17
Oral Surgery 25
- Dental Implant Techniques and Outcomes 16

Co-authors: Eugene J. Leys (4 shared papers)Ann L. Griffen (4 shared papers)Shareef M. Dabdoub (22 shared papers)Melvin L. Moeschberger (3 shared papers)Haikady N. Nagaraja (9 shared papers)Matthew R. Mason (7 shared papers)Dimitris N. Tatakis (5 shared papers)Michael R. Brooker (2 shared papers)
Journals: Journal Of Clinical Periodontology (9 papers)Journal of Periodontology (9 papers)The Journal of the American Dental Association (8 papers)Journal of Dental Research (7 papers)Periodontology 2000 (6 papers)
Partner nations: United States United Kingdom India

In The Last Decade

Purnima Kumar

101 papers receiving 6.2k citations

Hit Papers

align trajectories log scale

Distinct and complex bacterial profiles in human periodontitis and health revealed by 16S pyrosequencing 2011 · 774 citations

Peers

Countries citing papers authored by Purnima Kumar

Since Specialization

Citations

This map shows the geographic impact of Purnima Kumar'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 Purnima Kumar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Purnima Kumar more than expected).

Fields of papers citing papers by Purnima Kumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Purnima Kumar. 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 Purnima Kumar. The network helps show where Purnima Kumar may publish in the future.

Co-authors

The 25 scholars most cited alongside Purnima Kumar, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Purnima Kumar Line = papers co-authored together Purnima Kumar links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 104 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Distinct and complex bacterial profiles in human periodontitis and health revealed by 16S pyrosequencing The ISME Journal ·Ann L. Griffen, Clifford J. Beall, James H. Campbell, Noah D. Firestone, Purnima Kumar, Zamin K. Yang, Mircea Podar, Eugene J. Leys Hit paper breakdown →	2011	774
2	New Bacterial Species Associated with Chronic Periodontitis Journal of Dental Research ·Purnima Kumar, Ann L. Griffen, J.A. Barton, Bruce J. Paster, Melvin L. Moeschberger, Eugene J. Leys	2003	407
3	Identification of Candidate Periodontal Pathogens and Beneficial Species by Quantitative 16S Clonal Analysis Journal of Clinical Microbiology ·Purnima Kumar, Ann L. Griffen, Melvin L. Moeschberger, Eugene J. Leys	2005	378
4	Exposure to a social stressor disrupts the community structure of the colonic mucosa-associated microbiota BMC Microbiology ·Jeffrey D. Galley, Michael C. Nelson, Zhongtang Yu, Scot E. Dowd, Jens Walter, Purnima Kumar, Mark Lyte, Michael T. Bailey	2014	301
5	Pyrosequencing reveals unique microbial signatures associated with healthy and failing dental implants Journal Of Clinical Periodontology ·Purnima Kumar, Matthew R. Mason, Michael R. Brooker, Kelly A O'Brien	2012	268
6	Changes in Periodontal Health Status Are Associated with Bacterial Community Shifts as Assessed by Quantitative 16S Cloning and Sequencing Journal of Clinical Microbiology ·Purnima Kumar, Eugene J. Leys, Jennifer M. Bryk, Francisco Javier Villamarín Martínez, Melvin L. Moeschberger, Ann L. Griffen	2006	245
7	Etiology and Pathogenesis of Periodontal Diseases Dental Clinics of North America ·Dimitris N. Tatakis, Purnima Kumar	2005	233
8	The subgingival microbiome of clinically healthy current and never smokers The ISME Journal ·Matthew R. Mason, Philip M. Preshaw, Haikady N. Nagaraja, Shareef M. Dabdoub, Anis Rahman, Purnima Kumar	2014	204
9	Target Region Selection Is a Critical Determinant of Community Fingerprints Generated by 16S Pyrosequencing PLoS ONE ·Purnima Kumar, Michael R. Brooker, Scot E. Dowd, Terry Camerlengo	2011	202
10	Subgingival Microbial Profiles of Smokers with Periodontitis Journal of Dental Research ·A.Y. Shchipkova, Haikady N. Nagaraja, Purnima Kumar	2010	200
11	Tobacco Smoking Affects Bacterial Acquisition and Colonization in Oral Biofilms Infection and Immunity ·Purnima Kumar, Chad Matthews, Vinayak Joshi, Marko de Jager, M. Aspiras	2011	176
12	From focal sepsis to periodontal medicine: a century of exploring the role of the oral microbiome in systemic disease The Journal of Physiology ·Purnima Kumar	2016	173
13	Patient-specific Analysis of Periodontal and Peri-implant Microbiomes Journal of Dental Research ·Shareef M. Dabdoub, Alexandra Tsigarida, Purnima Kumar	2013	167
14	Deep Sequencing Identifies Ethnicity-Specific Bacterial Signatures in the Oral Microbiome PLoS ONE ·Matthew R. Mason, Haikady N. Nagaraja, Terry Camerlengo, Vinayak Joshi, Purnima Kumar	2013	159
15	A tale of two risks: smoking, diabetes and the subgingival microbiome The ISME Journal ·Sukirth M. Ganesan, Vinayak Joshi, Megan L. Fellows, Shareef M. Dabdoub, Haikady N. Nagaraja, Benjamin OʼDonnell, Neeta Rohit Deshpande, Purnima Kumar	2017	122
16	The nucleocapsid protein of the SARS coronavirus is capable of self-association through a C-terminal 209 amino acid interaction domain Biochemical and Biophysical Research Communications ·Milan Surjit, Bo Liu, Purnima Kumar, Vincent Chow, Sunil K. Lal	2004	101
17	The structures of the colonic mucosa-associated and luminal microbial communities are distinct and differentially affected by a prolonged murine stressor Gut Microbes ·Jeffrey D. Galley, Zhongtang Yu, Purnima Kumar, Scot E. Dowd, Mark Lyte, Michael T. Bailey	2014	94
18	Characterizing oral microbial communities across dentition states and colonization niches Microbiome ·Matthew R. Mason, Stephanie Chambers, Shareef M. Dabdoub, Sarat Thikkurissy, Purnima Kumar	2018	94
19	Oral microbiota and systemic disease Anaerobe ·Purnima Kumar	2013	93
20	Comparative metagenomics reveals taxonomically idiosyncratic yet functionally congruent communities in periodontitis Scientific Reports ·Shareef M. Dabdoub, Sukirth M. Ganesan, Purnima Kumar	2016	91

About Purnima Kumar

Purnima Kumar is a scholar working on Periodontics, Oral Surgery, Physiology, Molecular Biology and Public Health, Environmental and Occupational Health, having authored 104 papers that have together received 6.5k indexed citations. Recurring topics across this work include Oral microbiology and periodontitis research (61 papers), Oral Health Pathology and Treatment (19 papers), Salivary Gland Disorders and Functions (18 papers), Dental Health and Care Utilization (17 papers), Dental Implant Techniques and Outcomes (16 papers), Dental Research and COVID-19 (11 papers), Streptococcal Infections and Treatments (10 papers) and Gut microbiota and health (10 papers). The work is most often cited by research in Periodontics (3.9k citations), Oral Surgery (1.2k citations), General Dentistry (226 citations), Orthodontics (375 citations) and Biological Psychiatry (164 citations). Purnima Kumar has collaborated with scholars based in United States, United Kingdom and India. Frequent co-authors include Eugene J. Leys, Ann L. Griffen, Shareef M. Dabdoub, Melvin L. Moeschberger, Haikady N. Nagaraja, Matthew R. Mason, Dimitris N. Tatakis, Michael R. Brooker, Scot E. Dowd and Vinayak Joshi. Their work appears in journals such as Journal Of Clinical Periodontology, Journal of Periodontology, The Journal of the American Dental Association, Journal of Dental Research and Periodontology 2000.

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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