We found a high prevalence of periodontitis in Thai patients with RA. However, there was no association between RA parameters and periodontal conditions.

Our results confirm the previous findings that genotype distribution of A. actinomycetemcomitans varies between ethnic groups. However, no clear relationship between a specific genotype and periodontal conditions was observed.

The presence of A. actinomycetemcomitans and P. gingivalis, but not T. forsythia, in subgingival plaque was associated with chronic periodontitis in this group of Thai adults.

Aim The aim of the present study was to compare patient morbidity and healing outcomes of free gingival graft (FGG) harvesting at palatal donor sites and after using platelet‐rich fibrin (PRF) and oxidized regenerated cellulose (ORC). FGG harvesting leaves open palatal wounds, which heal by secondary intention. Patients might experience discomfort or pain during the first 2 weeks of healing. Methods Eighteen participants requiring two FGG were recruited. The test and control sites were covered with PRF membrane and ORC. The complete epithelialization of the palatal wound, the percentage of wound healing, and postoperative pain were evaluated, 1, 3, and 7 days and 2, 3, and 4 weeks after surgery. Results Similar wound size reduction at 1 week (test: 36.87%, control: 38.78%) was found. At 2 weeks, the majority of the test group (88.89%) showed complete epithelialization, whereas 66.67% of the control group had complete epithelialization (P = .228). Pain was more prevalent in the control group (27.77%) than in the test group (11.1%) on day 1. None of the participants reported any pain or discomfort at the test sites on day 3. Conclusions PRF seems to reduce patient morbidity, but there is no difference in palatal wound healing (P > .05).

The ADAM8 levels are elevated in the GCF of patients with periodontal diseases, including gingivitis, CP, and AgP, in comparison to control participants who are healthy, and they correlate with four clinical parameters that reflect the degree of disease severity.