Evaluation of periodontal indices in young adults submitted to chlorhexidine 0. 12% mouthwash: a randomized clinical trial / Avalização dos índices periodontais em adultos jovens submetidos a enxaguatório bucal a 0, 12% de clorexidina: um ensaio clínico randomizado

Introduction Gingivitis is a gingival inflammation which can often be treated with oral hygiene such as brushing, flossing, and an antiseptic mouthwash. Objective The aim of this randomized clinical trial was to clinically evaluate the effectiveness of 0.12% chlorhexidine (CHX) solution as an anti-inflammatory agent and for reducing the presence of plaque and inflammation in young adults. Material and method Thirty patients with gingivitis aged 18 to 30 years with a probing depth ≤ 3 mm and a minimum of 20 teeth in the whole mouth were selected and evaluated at baseline and 30 days after treatment. Periodontal clinical parameters were verified: plaque index (PI), gingival index (GI), Simplified Oral Hygiene Index (OHI-S), Simplified Debris Index (DI-S), and Simplified Calculus Index (CI-S) Patients were then randomly allocated into two groups: CHX Group, received chlorhexidine 0.12% labeled as solution 1, and Placebo Group, received saline solution labeled as solution 2. Both groups were included in a hygiene program and received mouthwash. Result Statistically significant differences between CHX and Placebo groups were observed for the variables PI, GI, DI-S, CI-S, and OHI-S (p<0.05 - Paired T Test) after 30 days. The CHX group presented improved GI compared to Placebo at 30 days. Chlorhexidine 0.12% was efficient in the control of periodontium inflammation. Conclusion It can be concluded that chlorhexidine as a mouthwash is efficient in improving periodontal indices in young adults, but it is still controversial whether age can influence GI and OHI-S.

Introdução A gengivite é uma inflamação gengival que geralmente pode ser tratada com higiene oral, como escovação, uso do fio dental e um anti-séptico bucal. Objetivo O objetivo deste ensaio clínico randomizado foi avaliar clinicamente a eficácia da solução de clorexidina 0,12% (CHX) como um agente antiinflamatório e na redução da presença de placa e inflamação em adultos jovens. Material e método Trinta pacientes com gengivite com idade entre 18 e 30 anos com profundidade de sondagem ≤ 3 mm com mínimo de 20 dentes em toda a boca foram selecionados e avaliados no início do estudo e 30 dias após o tratamento. Foram verificados os parâmetros clínicos periodontais: índice de placa (IP), índice gengival (GI), Índice de Higiene Oral Simplificado (IHO-S), Índice de Debris Simplificado (DI-S) e Índice de Cálculo Simplificado (IC-S). A seguir, os pacientes foram alocados aleatoriamente em dois grupos: Grupo CHX, recebeu clorexidina 0,12% previamente identificada como solução 1 e grupo placebo, recebeu solução salina identificada como solução 2. Ambos os grupos foram incluídos em programa de higiene e receberam enxaguatório bucal. Resultado Diferença estatisticamente significante entre os grupos CHX e Placebo foi observada para as variáveis ​​PI, GI, DI-S, CI-S e OHI-S (p <0,05 - Teste T Pareado) após 30 dias. O grupo CHX melhorou a resposta ao GI em comparação ao placebo em 30 dias. Clorexidina 0,12% foi eficiente no controle da inflamação do periodonto. Conclusão Pode-se concluir que a eficácia da clorexidina como enxaguatório bucal na melhora dos índices periodontais foi confirmada em adultos jovens, mas ainda é controverso que a idade pode influenciar o IG e IHO-S.

Endo-perio lesions prevalence in non-molar and molar teeth: a pilot study / Prevalência de lesões endo-perio em dentes não-molares e molares: um estudo piloto

Introduction Pulp and periodontal tissues may communicate and, in pathological situations, combined endodontic-periodontal lesions may be established. Objective The aim of this study was to evaluate the prevalence of endo-perio lesions in non-molar and molar teeth referred for endodontic treatment. Material and method The sample consisted of 104 teeth evaluated in 79 consecutive patients in a cross-sectional design. Visible plaque, probing depth, and bleeding on probing were evaluated. Endodontic evaluation included the presence or absence of caries, fistulas, pain, and pulp sensitivity. The presence/absence of periapical lesion, bone loss in the furcation region, and proximal area were evaluated. Result The results showed that pain was the main reason for seeking dental care in 63.3% of patients. The molar teeth demonstrated higher presence of probing depth (PD) ≥ 7 mm (38.3%) and higher PD mean (6.17 mm) than non-molar teeth (P<0.05). It was verified that 65.4% of the teeth were diagnosed with a primary endodontic lesion and that the periodontal component was present in 34.6% of the teeth, either in a primary (10.6%), secondary (11.5%), or combined form (12.5%). True combined endodontic-periodontal lesion occurred significantly in molar teeth compared to non-molar teeth (p<0.05). Conclusion The primary endodontic lesion was found in a greater proportion in teeth referred for endodontic treatment; however, approximately 1/3 of the sample had periodontal involvement, which demonstrates the importance of the periodontal examination together with the general clinical examination.

Introdução Os tecidos pulpar e periodontal podem se comunicar e, em situações patológicas, podem-se estabelecer lesões endodônticas-periodontais combinadas. Objetivo O objetivo deste estudo foi avaliar a prevalência de lesões endo-perio em dentes não molares e molares encaminhados para tratamento endodôntico. Material e método A amostra consistiu de 104 dentes avaliados em 79 pacientes consecutivos em um desenho transversal. Placa visível, profundidade de sondagem e sangramento à sondagem foram avaliados. A avaliação endodôntica incluiu a presença ou ausência de cáries, fístulas, dor e sensibilidade pulpar. Foram avaliados a presença / ausência de lesão periapical, perda óssea em região de furca e área proximal. Resultado Os resultados mostraram que a dor foi o principal motivo de procura de atendimento odontológico em 63,3% dos pacientes. Os dentes molares demonstraram maior presença de profundidade de sondagem (PS) ≥ 7 mm (38,3%) e maior média de PS (6,17 mm) do que os dentes não molares (P <0,05). Verificou-se que 65,4% dos dentes tinham diagnóstico de lesão endodôntica primária e que o componente periodontal estava presente em 34,6% dos dentes, seja na forma primária (10,6%), secundária (11,5%) ou combinada (12,5%). Lesão endodôntica-periodontal combinada verdadeira ocorreu significativamente em dentes molares em comparação com os dentes não molares (p <0,05). Conclusão A lesão endodôntica primária foi encontrada em maior proporção nos dentes encaminhados para tratamento endodôntico; entretanto, aproximadamente 1/3 da amostra apresentava acometimento periodontal, o que demonstra a importância do exame periodontal em conjunto com o exame clínico geral.

Estudo in vitro e in vivo de sondas periodontais do tipo Williams disponíveis no mercado brasileiro / In vitro and in vivo study of Williams-type periodontal probes available in the Brazilian market

Resumo Introdução A sonda periodontal é a melhor ferramenta para o diagnóstico clínico da doença periodontal, porém o desenho da sonda pode influenciar nos resultados. Objetivo Avaliar as características estruturais de sondas periodontais do tipo Williams disponíveis no mercado brasileiro e avaliar sua utilização clínica durante a sondagem periodontal. Material e método Os grupos de sondas foram divididos em: 1) Hu-Friedy® (n = 15); 2) Trinity® (n = 15); 3) Fava® (n = 15); 4) Millennium® (n = 15). Foram avaliados in vitro: peso (g), diâmetro da ponta ativa (mm), diâmetro do cabo (mm) e milimetragem das sondas (mm). Para o estudo in vivo, foram selecionados 10 participantes que apresentavam pelo menos quatro dentes com periodontite. As marcas de sondas foram codificadas em A, B, C e D para o cegamento do examinador. Resultado Verificou-se um diâmetro da ponta ativa sugestivo de forma tridimensional cônica para as marcas Trinity®, Hu-Friedy® e Millennium®, com conicidade crescente, enquanto a marca Fava® revelou forma tridimensional cilíndrico/paralelo. A sonda Fava® apresentou os maiores diâmetros nos terços inicial e médio, enquanto a Hu-Friedy® revelou menor diâmetro no terço inicial. Todas as sondas apresentaram milimetragem similar. No estudo clínico, verificou-se que a sonda Fava® resultou em menor média de profundidade de sondagem do que às demais. Conclusão As sondas periodontais apresentam diferenças estruturais que devem ser consideradas durante a seleção do instrumento, sendo que as sondas cônicas apresentam resultados mais confiáveis à prática clínica, pois o desenho da sonda interfere diretamente no diagnóstico clínico da doença periodontal.

Abstract Introduction The periodontal probe is the best tool for the clinical diagnosis of periodontal disease; however the probe design can influence the results. Objective To evaluate the structural characteristics of Williams-type periodontal probes available in the Brazilian market and evaluate their clinical use during periodontal probing. Material and method The probe groups were divided into: 1) Hu-Friedy® (n=15); 2) Trinity® (n=15); 3) Fava® (n=15); 4) Millennium® (n=15). In vitro analyzes were performed: weight (g), diameter of the active tip (mm), cable diameter (mm) and millimeter of the probes (mm). For the in vivo study, 10 participants were selected who had at least four teeth with periodontitis. The probe marks were coded in A, B, C and D for the examiner's blinding. Result There was a diameter of the active tip suggestive of a conical three-dimensional shape for the Trinity®, Hu-Friedy® and Millennium®, with increasing taper, while the Fava® tip demonstrated a suggestive diameter of a cylindrical / parallel three-dimensional shape. The Fava® probe showed the largest diameters in the initial and middle thirds, while the Hu-Friedy® revealed the smallest diameter in the initial third. All the probes presented similar milimeter. In the clinical study, it was found that the Fava® probe resulted in a lower average of probing depth than the others. Conclusion Periodontal probes have structural differences that must be considered during the selection of the instrument, and the conical probes present more reliable results to clinical practice, since the design of the probe directly interferes with the clinical diagnosis of periodontal disease.

Frequency of Porphyromonas gingivalis fimA in smokers and nonsmokers after periodontal therapy

Abstract Porphyromonas gingivalis is one of the most important Gram-negative anaerobe bacteria involved in the pathogenesis of periodontitis. P. gingivalis has an arsenal of specialized virulence factors that contribute to its pathogenicity. Among them, fimbriae play a role in the initial attachment and organization of biofilms. Different genotypes of fimA have been related to length of fimbriae and pathogenicity of the bacterium. Objectives The aim of this study was to identify 5 types of fimA genotype strains in smokers and nonsmokers with periodontitis, before and after periodontal therapy. Material and Methods Thirty-one patients with periodontitis harboring P. gingivalis were selected: 16 nonsmokers (NS) and 15 smokers (SM). Clinical and microbiological parameters were evaluated at baseline and 3 months after periodontal treatment, namely: plaque index, bleeding on probe, probing depth, gingival recession and clinical attachment level. The frequency of P. gingivalis and fimA genotype strains were determined by polymerase chain reaction. Results Type I fimA was detected in the majority of SM and NS at baseline, and the frequency did not diminish after 3 months of treatment. The frequency of type II genotype was higher in SM than NS at baseline. After 3 months, statistical reduction was observed only for types II and V fimA genotypes in SM. The highest association was found between types I and II at baseline for NS (37.5%) and SM (53.3%). Conclusion The most prevalent P. gingivalis fimA genotypes detected in periodontal and smoker patients were genotypes I and II. However, the presence of fimA genotype II was higher in SM. Periodontal treatment was effective in controlling periodontal disease and reducing type II and V P. gingivalis fimA.

Investigations of the prevalence and virulence of Candida albicans in periodontal and endodontic lesions in diabetic and normoglycemic patients

Abstract Pulpal and periodontal tissues have similar microbiota that allows cross-contamination between the pulp and periodontal tissues. Objective The aim of this study was to investigate the prevalence of isolated Candida albicans from periodontal endodontic lesions in diabetic and normoglycemic patients, and the fungi's virulence in different atmospheric conditions. Material and Methods A case-control study was conducted on 15 patients with type 2 diabetes mellitus (G1) and 15 non-diabetics (G2) with periodontal endodontic lesions. Samples of root canals and periodontal pockets were plated on CHROMagar for later identification by polymerase chain reaction (PCR) and virulence test. Results C. albicans was identified in 79.2% and 20.8% of the 60 samples collected from diabetic and normoglycemic patients, respectively. Of the 30 samples collected from periodontal pockets, 13 showed a positive culture for C. albicans, with 77% belonging to G1 and 23% to G2. Of the 11 positive samples from root canals, 82% were from G1 and 18% from G2. Production of proteinase presented a precipitation zone Pz<0.63 of 100% in G1 and 72% in G2, in redox and negative (Pz=1), under anaerobic conditions in both groups. Hydrophobicity of the strains from G1 indicated 16.4% with low, 19.3% with moderate, and 64.3% with high hydrophobicity in redox. In G2, 42.2% had low, 39.8% had moderate, 18% had high hydrophobicity in redox. In anaerobic conditions, G1 showed 15.2% with low, 12.8% with moderate, and 72% with high hydrophobicity; in G2, 33.6% had low, 28.8% had moderate, and 37.6% had high hydrophobicity. There was statistical difference in the number of positive cultures between G1 and G2 (p<0.05) with predominance in G1. There was statistical difference for all virulence factors, except hemolysis (p=0.001). Conclusions Candida albicans was isolated more frequently and had higher virulence in diabetic patients.

Microbiological, lipid and immunological profiles in children with gingivitis and type 1 diabetes mellitus

Abstract Objective The aim of this study was to compare the prevalence of periodontal pathogens, systemic inflammatory mediators and lipid profiles in type 1 diabetes children (DM) with those observed in children without diabetes (NDM), both with gingivitis. Material and methods Twenty-four DM children and twenty-seven NDM controls were evaluated. The periodontal status, glycemic and lipid profiles were determined for both groups. Subgingival samples of periodontal sites were collected to determine the prevalence of periodontal microorganisms by PCR. Blood samples were collected for IL-1-β, TNF-α and IL-6 analysis using ELISA kits. Results Periodontal conditions of DM and NDM patients were similar, without statistical differences in periodontal indices. When considering patients with gingivitis, all lipid parameters evaluated were highest in the DM group; Capnocytophaga sputigena and Capnocytophaga ochracea were more prevalent in the periodontal sites of DM children. “Red complex” bacteria were detected in few sites of DM and NDM groups. Fusobacterium nucleatum and Campylobacter rectus were frequently found in both groups. Similar levels of IL-1-β, TNF-α and IL-6 were detected in DM and NDM children. Conclusion Clinical and immunological profiles are similar between DM and NDM children. The presence of Capnocytophaga sputigena and Capnocytophaga ochracea were associated with gingivitis in DM children.

Aspectos clínicos, microbiológicos e tratamento periodontal em pacientes fumantes portadores de doença periodontal crônica: revisão de literatura / Clinical and microbiological aspects of periodontal treatment in smoker patients with chronic periodontal disease: literature review

Objetivo: o propósito deste estudo foi avaliar, através da revisão de literatura, os aspectos clínicos (índice de placa, índice gengival, profundidade de sondagem, recessão gengival e nível clínico de inserção) e microbiológicos (presença qualitativa e quantitativa de periodontopatógenos) e a resposta de pacientes tabagistas à terapia periodontal. Material e Métodos: foram selecionados artigos científicos publicados entre os anos de 1978 a 2014, através dos bancos de dados MEDLINE, PUBMED e LILACS. Resultados: existem divergências em relação à influência do tabagismo nos parâmetros clínicos e microbiológicos. Conclusão: baseado nos estudos avaliados pode-se concluir que há diferenças clínicas e microbiológicas significativas no paciente tabagista e comprometimento da resposta à terapia periodontal.

Objective: the aim of this study was to evaluate, through literature review, clinical aspects (plaque index, gingival index, probing depth, gingival recession and clinical attachment level) and microbiological (qualitative and quantitative presence of periodontal pathogens) in smokers patients and the response to periodontal therapy. Material and Methods: it was selected scientific articles published between the years 1978 and 2014. We were selected scientific articles from MEDLINE, PUBMED and LILACS databases. Results: there are controversies between tobacco and clinical and microbiological parameters. Conclusion: based on the evaluated studies we can conclude that there are significant clinical and microbiological differences in smoking patients and impaired response to periodontal therapy.

Periodontopathogens, Candida spp. and immunological aspects in type 2 diabetes mellitus patients with chronic periodontitis

This study aimed to evaluate clinical, microbiological and immunological parameters in type 2 diabetes mellitus (DM) in comparison with normoglycemic patients (NDM). Glycemic and lipid profiles and periodontal clinical status were determined for thirty-three patients (17 DM and 16 NDM). The presence of periodontopathogens and species of Candida in subgingival sites were determined by polymerase chain reaction and immunological parameters by ELISA assays. All glycemic and clinical parameters evaluated were higher in the DM group, with statistical difference for fasting glucose, glycated-hemoglobin, and periodontal parameters. Lipid profile (except triglycerides), levels of TNF-α and myeloperoxidase and the prevalence of the tested microorganisms were similar between the groups, except for Candida albicans and Candida glabrata, which was higher in the DM group. In conclusion, although microbiological and immunological parameters were similar in the DM and NDM groups, periodontitis and the levels of some species of Candida were more severe in DM patients. (AU)

Prevalence of periodontopathogens and Candida spp. in smokers after nonsurgical periodontal therapy - a pilot study

Abstract This pilot study aimed to evaluate the influence of smoking on clinical and microbiological parameters after nonsurgical periodontal therapy. Forty-eight subjects were grouped into smokers (SM, n = 24) and nonsmokers (NS, n = 24) and paired according to gender, age, ethnicity, and periodontal status. Both groups received oral hygiene education and scaling and root planing. Clinical evaluation was performed using plaque index (PI), bleeding on probing (BOP), pocket probing depth (PPD), gingival recession (GR), and clinical attachment level (CAL) before instrumentation (baseline) and at 3 and 6 months. The prevalence of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Candida albicans, Candida glabrata, Candida tropicalis, and Candida dubliniensis in subgingival biofilm was determined by polymerase chain reaction. The data were statistically analyzed considering p < 0.05. Clinical conditions improved between baseline and 3 months after periodontal treatment. However, NS had a better clinical response, presenting greater PPD reduction and CAL increase in comparison to SM. Periodontal treatment reduced the levels of P. gingivalis, A. actinomycetemcomitans, and T. forsythia individually after 3 months for the NS group and after 6 months for both groups. The prevalence of Candida species was markedly higher in SM than in NS at all time points evaluated. Periodontopathogens associated or not with C. albicans or C. dubliniensis were more prevalent in SM than in NS at baseline and after 3 months. It was concluded that smoking impairs clinical and microbiological responses to periodontal therapy. Periodontopathogens combined or not with some Candida species are resistant to short-term periodontal therapy in SM.

Effect of periodontal therapy on metabolic control and levels of IL-6 in the gingival crevicular fluid in type 2 diabetes mellitus.

Background: The aim of this study was to compare the efficacy of metabolic control and levels of interleukin 6 (IL-6) in gingival crevicular fluid after periodontal therapy in type 2 diabetes mellitus (DM) and nondiabetic (NDM) patients. Methods: This study was performed in 20 subjects (10 type 2 DM and 10 NDM patients with generalized chronic periodontal disease. Both groups were recorded for clinical parameters (plaque index (PI), gingival index (GI), probing depth (PD), gingival recession (GR) and clinical attachment level (CAL)), metabolic control (fasting glucose levels, glycated a-hemoglobin (HbA1c), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglycerides (TR)), and IL-6 levels at baseline and 3 months after periodontal treatment. Results: DM and NDM patients revealed significant statistical reductions for clinical parameters (P < 0.05, RM ANOVA) after 3 months. DM group had improvements on HbA1c and had significant statistical increased of TRG (P < 0.05, RM ANOVA) after 3 months. No differences of LDL/HDL and IL-6 levels were found after 3 months in both groups. Conclusion: DM group presented a significant reduction of HbA1c levels after periodontal therapy. However, TRG levels increased after 3 months, which suggest more confirmatory studies to investigate if these results will be repeated in other studies.