Peptostreptococcus micros Smooth and Rough Genotypes in Periodontitis and Gingivitis

Abstract

The results of this study suggest that both the Sm and the Rg genotypes of P micros are part of the normal oral microbiota. However, the elevated prevalence of the Sm genotype in periodontitis and the elevated prevalence of the Rg type in periodontitis patients who smoke implies that both types can behave as opportunistic pathogens in destructive periodontal disease.

Comparison of two full‐mouth approaches in the treatment of peri‐implant mucositis: a pilot study

“…From the examined species, P. micra dominated the peri-implant and periodontal pocket. Because P. micra can be detected under both periodontal and periimplant healthy conditions, it can be concluded that it is part of the oral flora but can become an opportunistic pathogen at higher counts (Tanner et al 1996;Lee et al 1999;Kremer et al 2000;Renvert et al 2007).…”

Effect of smoking and periodontal treatment on the subgingival microflora

“…In contrast, Zambon et al (1996) and Haffajee & Socransky (2001) showed that cigarette smoking increased the likelihood of subgingival infection with periodontal pathogens. Furthermore, Kremer et al (2000) found that a specific genotype of Peptostreptococcus micros ( Pm ) was more prevalent in smokers.…”

Relationship of Subgingival and Salivary Microbiota to Gingival Overgrowth in Heart Transplant Patients Following Cyclosporin A Therapy

“…King et al 41 have reported that the plaque index is not the ideal tool for analyzing the correlation between plaque and the presence of gingival overgrowth. 47 However, this finding does not contribute to an explanation of our results, since heart transplant patients are highly unlikely to smoke. 47 have reported that this microorganism is part of the endogenous oral microbiota.…”

“…There was no difference between the plaque indices and gingival indices in patients with or without gingival overgrowth. 47 have reported that this microorganism is part of the endogenous oral microbiota. This index does not have the required sensi- Table 3.…”