Background and aims: Entamoeba gingivalis and Trichomonas tenax are oral protozoa that can cause periodontitis and gingivitis. The present study was done to determine the prevalence of these two protozoa in people over 14 years with periodontitis and gingivitis.
Methods: In this descriptive, cross-sectional study, 540 patients referring Resalat Dental Clinic, Shahrekord in 2015 were enrolled and assigned to two groups of 270 each, patients with periodontitis and gingivitis and healthy individuals. The prepared specimens were examined by extensive wet procedures, Gimsa staining and Trichorom staining. Data were analyzed by chi-square, Fisher’s exact test, and logistic regression in SPSSv.20.
Results: In the healthy group, no E. gingivalis- and T. tenax-positive cases were seen. The prevalence rate of E. gingivalis and T. tenax was obtained 3% by extensive wet procedure, 1.9% by Trichoderma staining, and 0.7% by Giemsa staining. By logistic regression model, none of variables of age, gender, place of residence, smoking, tooth brushing, flossing, and oral PH were associated protozoan infection with E. gingivalis and T. tenax (P>0.05).
Conclusion: The results show that infection with this protozoan is low in this region and other agents should be studied for people’s acquisition of gingivitis and periodontitis.