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The present study determines the incidence of gingivitis among orthodontic patient s of the Department of Orthodontics, College of Dentistry, University of the Philippines, Manila. A nonintervention cohort study on a total number of 36 subjects with fixed orthodontic appliance was carried out to examine the clinical symptoms of gingivitis. Change in color, contour, surface texture, and consistency of the gingival were observed during the period of one month. The Gingival Bleeding Index was employed for the objective qualitative analysis of the gingival status. The questionnaire used in the study, collected information on oral hygiene habits, educational attainment, and monthly family income of income of the patients and these variables were correlated with the age and sex of the patients. The results showed an increase in the incidence of gingivitis based on the development of clinical symptoms observed during the examination period. However, there was no significant difference in the mean bleeding index between the first and second examination(a=0.05).

Inflammation, Gingivitis, Plaque, Fixed orthodontic treatment, Incidence