Introduction:Periodontal diseases are becoming ever growing problem, not only for stomatology, but also for medicine overall, as the final result from this disease is loss of the teeth. The main cause for the emergence of the periodontal disease is bacterial activity from dental plaque. CPI index / Community Periodontal Index is recommended from the World Health Organization for epidemiological research, and for its application, graded probe WHO for periodontal tissue, which on the top has a ball with radius of 0.5mm, is essential.
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