PMA index
noun
: a measure of the incidence and severity of gingivitis in a given population based on examination and rating of the degree of involvement of the interdental papilla and the marginal and attached portions of the gingiva in each individual
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“PMA index.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/PMA%20index. Accessed 23 Apr. 2024.
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