Supragingival biofilm control and systemic inflammation in patients with type 2 diabetes mellitus

The objective of this study was to evaluate the effect of strict supragingival biofilm control on serum inflammatory markers and on periodontal clinical parameters in type 2 diabetes mellitus (T2DM) patients with chronic severe periodontitis. Twenty-four individuals with T2DM and periodontitis were randomly allocated to two treatment groups. The supragingival therapy group (ST, n = 12) received supragingival scaling, whereas the intensive therapy group (IT, n = 12) underwent supra- and subgingival scaling, as well as root planing. Patients from both groups received professional oral hygiene instructions every month. Data regarding visible plaque index (VPI), gingival bleeding index (GBI), bleeding on probing (BOP), probing pocket depth (PPD), clinical attachment level (CAL), serum levels of interleukin (IL)-6, IL-17A, IL-8, tumor necrosis factor α (TNF-α), monocyte chemoattractant protein (MCP)-1 enzyme-linked immunosorbent assay (ELISA), and glycated hemoglobin (HbA1c) levels were obtained at baseline and at 6 months post-therapy. Both therapies resulted in the improvement of almost all clinical periodontal parameters (p < 0.05). There were no differences in TNF-α, IL-8, IL-17A and HbA1c levels in either group (p >0.05), between the two periods. However, MCP-1 levels were significantly reduced in both the ST (p = 0.034) and the IT (p = 0.016) groups, whereas the serum IL-6 levels were significantly reduced only in the IT group (p = 0.001). Strict control of supragingival biofilm has a limited effect on systemic inflammatory markers, and a moderate effect on periodontal clinical parameters.

Serum leveis of inflammatory markers in type 2 diabetes patients with chronic periodontitis

Diabetes has been associated with periodontitis, but the mechanisms through which periodontal diseases affect the metabolic control remain unclear. Objective: This study aimed to evaluate serum leveis of inflammatory markers, IL-8, IL-6 and monocyte chemoattractant protein 1 (MCP-1), in type 2 diabetic patients in the presence of chronic periodontitis. Material and Methods: Forty two individuals were enrolled in this study and assigned to one of five groups: diabetes mellitus with inadequate glycemic control and periodontitis (DMI+P, n = 10), diabetes mellitus with adequate glycemic control and periodontitis (DMA+P, n = 10), diabetes mellitus without periodontitis (DM, n = 10), periodontitis without diabetes (P, n=6), and neither diabetes nor periodontitis (H, n = 6). Periodontal clinical examination included visible plaque index (PL), gingival bleeding index (GB), probing depth (PD), attachment level (AL) and bleeding on probing (BP). Glycemic control was evaluated by serum concentration of glycated hemoglobin (HbAlc). Inflammatory serum markers IL-8, IL-6 and (MCP-1) were measured by ELISA. Results: DMI+P and DMA+P groups presented higher PD (p=0.025) and AL (p=0.003) values when compared to the P group. There were no significant differences among groups for IL-6, IL-8 and MCP-1 serum levels. Conclusions: Although periodontitis was more severe in diabetic patients, the serum levels of the investigated inflammatory markers did not differ among the groups. .

Avaliação de marcadores inflamatórios séricos em indivíduos com diabetes mellitus tipo 2 após tratamento periodontal intensivo não-cirúrgico: estudo clínico randomizado / Evaluation of serum inflammatory markers in individuals with type 2 diabetes mellitus after intensive non-surgical periodontal therapy: a randomized clinical trial effects

O objetivo deste trabalho foi comparar os efeitos sorológicos e clínicos de dois protocolos de terapias periodontais em indivíduos com diabetes tipo 2 (DMT2) e periodontite crônica. Foram analisados 36 pacientes, randomizados em dois grupos: um grupo recebeu terapia intensiva de raspagem e alisamento radicular (INT; n=18) e outro recebeu apenas raspagem supragengival (SUP; n=18). Os grupos foram avaliados quanto aos parâmetros clínicos periodontais e marcadores inflamatórios séricos, antes e após 6 meses do tratamento periodontal. O exame clínico periodontal avaliou: placa visível (IP), índice gengival (IG), supuração (SUPUR), profundidade clínica de sondagem (PCS) e nível clínico de inserção (NCI). Amostras sanguíneas foram obtidas para análise de marcadores inflamatórios e hemoglobina glicada (HbA1c). Os marcadores de inflamação avaliados foram: interleucina (IL)-1, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12, IL-13, IL-17, fator estimulador de colônias granulocitárias (G-CSF), fator estimulador de colônias de granulócitos-macrófagos (GM-CSF), interferon- (IFN-), proteína quimiotática de monócito-1 (MCP-1), proteína inflamatória de macrófago-1 (MIP-1) e fator de necrose tumoral (TNF-), através do imunoensaio multiplex (Bioplex). Ambas as terapias resultaram na melhora de quase todos os parâmetros clínicos periodontais (p<0,05), com exceção do NCI (p=0,09) no grupo SUP. Não houve diferença significativa para os níveis de IL-1, IL-4, IL-5, IL-10, IL-13, MIP-1 e TNF- (p>0,05), após tratamento, em ambas as terapias. Houve redução significativa de IL-6 (p=0,01), IL-12 (p=0,04) e MCP-1 (p=0,02) no grupo INT e de GCS-F nos grupos SUP (p=0,04) e INT (p=0,01). Os níveis de IL-2, IL-7, IL-8, IL-17, GM-CSF e IFN- não foram detectados. A terapia INT tem um efeito benéfico na redução dos níveis séricos de IL-6, IL-12 e MCP-1, na redução de PCS em sítios profundos e no ganho de inserção quando comparado à terapia supragengival em um período de 6 meses...

The objective of this study was to compare the serological and clinical effects of two periodontal therapies in individuals with type 2 diabetes (T2DM) and chronic periodontitis. 36 patients were analyzed, randomized into two groups: one group received intensive t of scaling and root planing (INT, n=18) and another received only supragingival scaling (SUP, n=18). The groups were evaluated for periodontal parameters and serum inflammatory markers before and after 6 months of periodontal treatment. The periodontal parameters assessed were: visible plaque (PI), gingival index (GI), suppuration (SUP), probing pocket depth (PPD) and clinical attachment level (CAL). Blood samples were obtained for analysis of inflammatory markers and glycated hemoglobin (HbA1c). The inflammatory markers evaluated were: interleukin (IL)- 1 , IL- 2, IL -4, IL -5, IL -6, IL -7 , IL-8 , IL-10 , IL-12 , IL-13 , IL -17, granulocyte colony-stimulated factor (G -CSF), colony stimulating factor granulocyte-macrophage (GM -CSF), interferon - (IFN - ), monocyte chemotactic protein-1 (MCP-1) , macrophage inflammatory protein-1 (MIP-1 ) and tumor necrosis factor (TNF- ) through a multiplex immunoassay (Bioplex). Both therapies resulted in improvement of almost all periodontal clinical parameters (p<0.05), with the exception of the NCI in SUP group. There was no significant difference for (IL )- 1 , IL- 4, IL -5, IL-10 , IL-13 , MIP- 1 and TNF- after treatment for both therapies (p>0.05). A significant reduction was observed in IL-6 (p=0.01), IL-12 (p=0.04) and MCP-1 (p=0.02) levels for INT group and in GCS- F levels for SUP (p=0.04) and INT (p=0.01) groups. The levels of IL-2, IL -7, IL-8 , IL-17, GM- CSF and IFN- were not detectable. The INT therapy has a beneficial effect in reducing serum levels of IL-6, IL-12 and MCP-1, in reducing PPD of deep sites and in attachment gain when compared to SUP therapy considering a period of 6 months...

A influência do controle supragengival no nível glicêmico de pacientes portadores de diabetes tipo 2 / The impact of supragingival mechanical control on glycemic level in subjects with type 2 diabetes

O diabetes mellitus (DM) atualmente é considerado pela Organização Mundial da Saúde (OMS) como uma epidemia. Para prevenir as suas complicações e desonerar os sistemas de saúde, tem-se dado mais atenção à saúde primária (ex.: dieta e exercícios físicos) e secundária (ex.: bom controle glicêmico). O controle glicêmico é fundamental para a prevenção das complicações do DM (doenças cardiovasculares, retinopatias, nefropatias, neuropatias etc.). A doença periodontal (DP) é considerada uma das complicações do DM e estudos clínicos e epidemiológicos têm avaliado o impacto do tratamento periodontal no controle glicêmico. Dada à relevância deste assunto, o objetivo foi fazer uma revisão crítica da literatura, assim como relatar um caso sobre a influência do controle mecânico supragengival nos níveis glicêmicos de uma paciente portadora de diabetes mellitus tipo 2 (DM 2).

Effect of non-surgical periodontal treatment on the subgingival microbiota of patients with chronic kidney disease

This study investigated the effect of non-surgical periodontal therapy on the composition of subgingival microbiota of patients with chronic kidney disease (CKD). Sixteen CKD pre-dialysis individuals (CKD) and 14 individuals without clinical evidence of kidney disease (C) presenting chronic periodontitis were treated by scaling and root planing. Subgingival samples were collected from each patient and analyzed for their composition by checkerboard at baseline and 3 months post-therapy. Significant differences between groups at baseline were sought by the Mann-Whitney and χ² tests. Changes over time were examined by the Wilcoxon test. At baseline, the CKD group had significantly lower counts of E. faecalis compared to the C group (p < 0.05). After treatment, the levels of a greater number of species were reduced in the C group. Higher levels of A. israelii, C. rectus, F. periodonticum, P. micra, P. nigrescens, T. forsythia, N. mucosa, and S. anginosus (p < 0.05) were found in the CKD group compared to the C group. Also, non-responsive sites in CKD individuals harbored significantly higher levels of pathogenic species (T. forsythia, P. gingivalis, T. denticola, Fusobacterium spp., D. pneumosintes, E. faecalis and S. aureus; p < 0.05) than sites that responded to therapy, as well as non-responsive sites in the C group. The periodontitis-associated subgingival microbiota of CKD and systemically healthy individuals was similar in composition. However, high levels of pathogenic species persisted in the subgingival microbiota of patients with CKD after treatment.

Como estabelecer confiabilidade e evitar erros de mensuração nas pesquisas clínicas periodontais? / How to establish reliability and to avoid measurement errors in surveys clinical periodontal?

Muitos estudos clínicos na área da Periodontia ainda apresentam erros metodológicos que afetam as suas validades. Um dos motivos que comprometem a reprodutibilidade e a confiabilidade das pesquisas é a prévia falta de treinamento do(s) examinador (es) envolvido(s). Esta revisão tem como objetivo elucidar a importância da calibração na avaliação dos parâmetros clínicos periodontais, assim como apresentar testes estatísticos adequados para que os dados avaliados tenham corretas interpretações.

Methodological errors still may affect the validity of many clinical studies in the field of periodontics. One of the reasons that compromise the research's reliability and reproducibility is the lack of prior training author (s) involved (s). This review aims to elucidate the importance of calibration in the evaluation of clinical periodontal parameters, as well as provide statistical tests appropriate for the data evaluated have the correctinterpretation

Effect of non-surgical periodontal treatment on chronic kidney disease patients

Chronic kidney disease (CKD) is a debilitating systemic condition. Our working hypothesis is that CKD predialysis patients with periodontitis would respond poorly to periodontal treatment owing to immunologic compromise. Twenty-one predialysis patients (group 1) and 19 individuals without clinical evidence of kidney disease (group 2) with chronic periodontitis were subjected to non-surgical periodontal treatment with no antibiotics. Clinical periodontal and systemic parameters were evaluated at baseline and 3 months after treatment. Both groups showed significant and similar post-treatment improvements in all periodontal parameters examined. Most interestingly, periodontal treatment had a statistically significant positive effect on the glomerular filtration rate of each individual (group 1, p = 0.04; group 2, p = 0.002). Our results indicate that chronic periodontitis in predialysis kidney disease patients improved similarly in patients with chronic periodontitis and no history of CKD after receiving non-surgical periodontal therapy. This study demonstrates that CKD predialysis patients show a good response to non-surgical periodontal treatment.

Manifestações bucais e doença renal crônica: revisão de literatura / Oral findings and chronic renal failure: literature review

Este artigo é uma revisão da literatura sobre as manifestações bucais com Doença Renal Crônica (DRC) enfatizando uma possível associação entre DRC e Doença Periodontal. Esta associação tem sido apresentada em estudos mais recentes e com metodologias mais adequadas. Algumas sugestões de mecanismos biológicos para tal associação também são exploradas.