One study [28] identified the bacteria through LAMP method, finding 13 positive subjects (n = 13 periodontitis) [28] and 4 negative ones (n = 4 periodontitis) [28]; one study [27] used cultures as identification technique, of which 14 subjects resulted positive (n = 14 MIPP), with a count of 1.8 ± 2.3 (log10/mL) and 8 were negative (n = 8 MIPP) [27]. This evidence concerns the gene MINPP1 and periodontitis.