MINPP1 and periodontitis: Among them, CMV resulted positive in 44 subjects (50%) (n = 32, 36.36% periodontitis; n = 12, 13.64% MIPP) [17,23,24,26,27,28] and negative in 44 (55.84%) (n = 21, 23.86% periodontitis; n = 16, 18.19% gingivitis; n = 7, 7.95% MIPP) [17,24,25,27,28].