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Aims & Objectives: Periodontal disease comprises a group of inflammatory conditions of the supporting tissues of the teeth that are caused by bacteria. The present study was undertaken to evaluate whether Oratest could be used as a sensitive indicator of plaque levels and gingivitis. Material and Methods: Hundred caries free patients visiting the out-patient department of A.E.C.S. Maaruti College of Dental Sciences and Research Centre, Banglore were selected according to predetermined selection criteria. The study consisted of two clinical stages: Stage 1. Recording of Plaque Index (Loe, 1967) and Gingival Index (Loe & Silness 1963) in the subjects. Stage 2. Performance of the Oratest and recording the scores in the same subjects. The Oratest was performed by rinsing the mouth with sterilized UHT (Ultra high temperature) milk. About 3 ml of expectorated milk was added to a test tube containing the 0.12 ml of 0.1% methylene blue. The time required for colour change from blue to white attained at the bottom of the tube was recorded. Plaque Index, Gingival Index and Oratest scores were compared using Student t test. Pearson correlation test was applied to assess correlation between the indices and Oratest scores. Results:The results of the study showed that as age increased plaque and Gingival Indexes also increased whereas Oratest scores decreased. No significant difference between males and females was found in mean values of Plaque Index, Gingival Index and Oratest scores. Negative correlation was seen between Plaque Index and Oratest scores (r = 0.724) and also between Gingival Index and Oratest scores (r = 0.728). Conclusions: The study showed high correlation between the plaque and gingival indices and Oratest scores. This study validates Oratest as a predictable & sensitive test to assess periodontal disease

Comparative Evaluation for Assessing Oratest as a Diagnostic Tool for Evaluation of Plaque Levels & Gingivitis