Experimental model of periodontitis and rheumatoid arthritis potentiates the deleterious effects on functional capacity, leukocyte migration, synovial and periodontal tissues in rats.

Objective: This study aimed to evaluate whether ligature-induced periodontitis and rheumatoid arthritis (RA) potentiate the deleterious effects on functional capacity, periodontal and synovial tissues, leukocyte migration, and interleukin 17 (IL-17) levels, and to investigate the repercussions of single Freund's Complete Adjuvant (FCA) injection associated with periodontitis.

Materials And Methods: Fifty-one male rats were randomised into six groups: control (CG,  = 8), RA (RAG,  = 9), periodontitis (PG,  = 9), periodontitis and RA (PRAG,  = 9), periodontitis and intradermal injection (PIDG,  = 9), and periodontitis and intra-articular injection (PIAG,  = 7). The animals underwent ligature placement and one or two injections with FCA to induce RA.

Effects of the Association of Periodontitis and Type 1 Diabetes Mellitus Induced on Periodontal Tissues and the Duodenal Mucosa of Wistar Rats.

Forty Wistar rats were used: (1) control group (CG); (2) group of periodontal disease (PD); (3) type 1 diabetes mellitus group (T1DM); (4) type 1 diabetes mellitus + periodontal disease group (T1DM + PD). In groups T1DM and T1DM + PD, T1DM induction was performed with the administration of streptozotocin (STZ) 80 mg/kg intraperitoneal body weight. The PD and T1DM + PD groups were submitted to PD induction with ligation.

Maternal periodontal disease as a risk factor for preterm birth and low-birth-weight babies: a case-control study.

Periodontal disease is considered a public health problem because of its high prevalence, while premature birth is a serious perinatal problem, persisting as one of the major causes of perinatal mortality and morbidity. Therefore, the objective of this study was to evaluate the effect of maternal periodontal disease on the occurrence of preterm birth and the birth weight of their babies. The study sample included 45 new mothers, aged 18-35 years, who presented either slight or moderate to severe localized or generalized chronic periodontitis with bleeding on probing and gingival inflammation.