Beyond Bacteria: The Impact of Protozoa on Periodontal Health

Until recently, bacterial species were the primary etiological factor of periodontal disease, but recent studies have shown that their effective removal from tooth surfaces does not necessarily prevent the progression of the disease. A logical hypothesis leads to the conclusion that various etiologi...

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Main Authors: Bruno Pires Miranda, Marcos Tobias de Santana Miglionico, Rhagner Bonono dos Reis, Júlia de Castro Ascenção, Helena Lúcia Carneiro Santos
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Microorganisms
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Online Access:https://www.mdpi.com/2076-2607/13/4/846
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author Bruno Pires Miranda
Marcos Tobias de Santana Miglionico
Rhagner Bonono dos Reis
Júlia de Castro Ascenção
Helena Lúcia Carneiro Santos
author_facet Bruno Pires Miranda
Marcos Tobias de Santana Miglionico
Rhagner Bonono dos Reis
Júlia de Castro Ascenção
Helena Lúcia Carneiro Santos
author_sort Bruno Pires Miranda
collection DOAJ
description Until recently, bacterial species were the primary etiological factor of periodontal disease, but recent studies have shown that their effective removal from tooth surfaces does not necessarily prevent the progression of the disease. A logical hypothesis leads to the conclusion that various etiological factors contribute to the etiopathogenesis of this disease. Recent evidence also indicates protozoa as potential pathogens. In this review, the role of <i>Entamoeba gingivalis</i>, <i>Acanthamoeba</i> spp., and <i>Trichomonas tenax</i> in periodontal disease was analyzed, and the various aspects of the role of protozoa in the etiopathogenesis of periodontal disease, the bacterial–protozoa model of the disease, and the therapeutic implications were categorized. The multifactorial nature of periodontal disorders requires further research to better identify individuals at risk and prescribe earlier and more definitive treatments. The evidence supporting the role of protozoa in periodontal disease is compelling. These organisms are essential contributors to this complex disease. The key to developing more effective prevention and treatment strategies lies in understanding the intricate interactions between protozoa, bacteria, and the host. A better understanding of the protozoa aspect of periodontal disease progression could significantly change the future perspective of diagnosing, preventing, and treating periodontal disease.
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spelling doaj-art-fda3d808f1904ee2a27b1b4351ca48212025-08-20T02:18:00ZengMDPI AGMicroorganisms2076-26072025-04-0113484610.3390/microorganisms13040846Beyond Bacteria: The Impact of Protozoa on Periodontal HealthBruno Pires Miranda0Marcos Tobias de Santana Miglionico1Rhagner Bonono dos Reis2Júlia de Castro Ascenção3Helena Lúcia Carneiro Santos4Laboratory of Parasitic Diseases, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-360, RJ, BrazilLaboratory of Parasitic Diseases, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-360, RJ, BrazilLaboratory of Parasitic Diseases, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-360, RJ, BrazilLaboratory of Parasitic Diseases, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-360, RJ, BrazilLaboratory of Parasitic Diseases, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-360, RJ, BrazilUntil recently, bacterial species were the primary etiological factor of periodontal disease, but recent studies have shown that their effective removal from tooth surfaces does not necessarily prevent the progression of the disease. A logical hypothesis leads to the conclusion that various etiological factors contribute to the etiopathogenesis of this disease. Recent evidence also indicates protozoa as potential pathogens. In this review, the role of <i>Entamoeba gingivalis</i>, <i>Acanthamoeba</i> spp., and <i>Trichomonas tenax</i> in periodontal disease was analyzed, and the various aspects of the role of protozoa in the etiopathogenesis of periodontal disease, the bacterial–protozoa model of the disease, and the therapeutic implications were categorized. The multifactorial nature of periodontal disorders requires further research to better identify individuals at risk and prescribe earlier and more definitive treatments. The evidence supporting the role of protozoa in periodontal disease is compelling. These organisms are essential contributors to this complex disease. The key to developing more effective prevention and treatment strategies lies in understanding the intricate interactions between protozoa, bacteria, and the host. A better understanding of the protozoa aspect of periodontal disease progression could significantly change the future perspective of diagnosing, preventing, and treating periodontal disease.https://www.mdpi.com/2076-2607/13/4/846<i>Entamoeba gingivalis</i><i>Acanthamoeba</i> spp.<i>Trichomonas tenax</i>co-interactions
spellingShingle Bruno Pires Miranda
Marcos Tobias de Santana Miglionico
Rhagner Bonono dos Reis
Júlia de Castro Ascenção
Helena Lúcia Carneiro Santos
Beyond Bacteria: The Impact of Protozoa on Periodontal Health
Microorganisms
<i>Entamoeba gingivalis</i>
<i>Acanthamoeba</i> spp.
<i>Trichomonas tenax</i>
co-interactions
title Beyond Bacteria: The Impact of Protozoa on Periodontal Health
title_full Beyond Bacteria: The Impact of Protozoa on Periodontal Health
title_fullStr Beyond Bacteria: The Impact of Protozoa on Periodontal Health
title_full_unstemmed Beyond Bacteria: The Impact of Protozoa on Periodontal Health
title_short Beyond Bacteria: The Impact of Protozoa on Periodontal Health
title_sort beyond bacteria the impact of protozoa on periodontal health
topic <i>Entamoeba gingivalis</i>
<i>Acanthamoeba</i> spp.
<i>Trichomonas tenax</i>
co-interactions
url https://www.mdpi.com/2076-2607/13/4/846
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