Journal
ACTA PARASITOLOGICA
Volume 66, Issue 3, Pages 715-732Publisher
SPRINGER INT PUBL AG
DOI: 10.1007/s11686-021-00340-4
Keywords
Prevalence; Trichomonas tenax; Worldwide; Oral health
Categories
Funding
- Metabolic Diseases Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran [IR.QUMS.Rec.1399.273]
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The study revealed a global prevalence of 17% for T. tenax infection, with the highest prevalence in Chile and the lowest in Kenya. The pooled prevalence of T. tenax infection in patients with candidiasis, gingivitis, and periodontitis was found to be 22%, 21%, and 27% respectively. Further epidemiological studies and clinical trials are needed to confirm this association.
Purpose Trichomonas tenax (T. tenax) is a commensal flagellated protozoan found in periodontal microenvironment of the oral cavity, with a possible role in periodontal diseases. The purpose of the present systematic review and meta-analysis was to determine the worldwide prevalence of T. tenax infection and to show the neglected association of this parasitic infection with oral diseases. Methods To find literatures published until August 2020, five English databases (PubMed, Scopus, Science Direct, Web of Science and Google Scholar) were explored. Finally, 65 papers were qualified to be included in the current study. Results Our results revealed a global pooled prevalence of 17% (95% CI 14-22%) for T. tenax infection. The highest prevalence was estimated at 56% (42-69%) in Chile, while the lowest prevalence was related to Kenya with 3% (1-6%). The age-based analysis found that the infection was most common in 46-55 mean age group with 15% (0-100%). The overall prevalence regarding culture method, molecular method and direct method was 21% (12-32%), 19% (8-35%) and 17% (12-23%), respectively. Moreover, the subgroup analysis showed the pooled prevalence in patient with candidiasis [22% (3-52%)], gingivitis [21% (9-36%)] and periodontitis [27% (10-48%)]. Conclusion Our study specified a connection between T. tenax protozoa and periodontitis disease. However, more epidemiological studies as well as clinical trials are needed to precisely identify this relation.
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