La plausibilidad biológica entre la periodontitis crónica y el infarto cerebral isquémico / Biological plausibility of the relationship between chronic periodontitis and ischemic stroke

Introducción: Las bolsas periodontales reales constituyen un reservorio importante de bacterias gramnegativas que pueden por diversas vías ejercer influencia en sitios distantes, lo cual provoca alteraciones sistémicas como las enfermedades derivadas de la aterosclerosis. Objetivo: Explicar los fundamentos teóricos que sustentan la propuesta de la periodontitis crónica como un factor de riesgo para el infarto cerebral isquémico. Contenido: 1) La aterosclerosis y las enfermedades cerebrovasculares, generalidades de su patogenia. 2) La microbiota periodontal, fundamentos de su asociación con la aterosclerosis y la enfermedad cerebrovascular isquémica. Exposición del tema: La inflamación es un elemento de vital importancia en todas las fases del proceso aterosclerótico, tanto en su inicio, progresión, como en sus complicaciones. La naturaleza de las enfermedades periodontales inmunoinflamatorias crónicas y la infección subgingival anaerobia asociada a ellas, representa una injuria metastásica que produce y disemina mediadores inflamatorios favorecedores de la ateroesclerosis, participando en la colonización, y ruptura de placas ateromatosas; procesos implicados en la patogenia del infarto cerebral isquémico. Consideraciones finales: El mayor conocimiento de la relación riesgosa entre periodontitis crónica e infarto cerebral isquémico, permitiría una utilización racional de estrategias de prevención y tratamiento de la enfermedad cerebrovascular, basadas en la detección de procesos inflamatorios como las periodontopatías crónicas(AU)

Introduction: True periodontal pockets are an important reservoir of gram-negative bacteria which may exert an influence on distant sites in a variety of manners, bringing about systemic alterations such as diseases derived from atherosclerosis. Objective: Explain the theoretical foundations supporting the proposal of chronic periodontitis as a risk factor for ischemic stroke. Content: 1) Atherosclerosis and cerebrovascular disease, an overview of their pathogenesis. 2) The periodontal microbiota, bases for its association with atherosclerosis and ischemic stroke Topic presentation: Inflammation is an element of vital importance in all the stages of the atherosclerotic process, be it its onset, progress or complications. By their nature, chronic immunoinflammatory periodontal diseases and the associated anaerobic subgingival infection, constitute a metastatic injury that produces and spreads inflammatory mediators leading to atherosclerosis and participating in the colonization and rupture of atheromatous plaques, which are processes involved in the pathogenesis of ischemic stroke. Final considerations: Better knowledge about the risk relationship between chronic periodontitis and ischemic stroke would allow a rational use of strategies for the prevention and treatment of cerebrovascular disease based on detection of inflammatory processes such as chronic periodontal conditions(AU)

Role of 1% alendronate gel as adjunct to mechanical therapy in the treatment of chronic periodontitis among smokers

Abstract Objective Alendronate (ALN) inhibits osteoclastic bone resorption and triggers osteostimulative properties both in vivo and in vitro, as shown by increase in matrix formation. This study aimed to explore the efficacy of 1% ALN gel as local drug delivery (LDD) in adjunct to scaling and root planing (SRP) for the treatment of chronic periodontitis among smokers. Material and Methods 75 intrabony defects were treated in 46 male smokers either with 1% ALN gel or placebo gel. ALN gel was prepared by adding ALN into carbopol-distilled water mixture. Clinical parameters [modified sulcus bleeding index, plaque index, probing depth (PD), and periodontal attachment level (PAL)] were recorded at baseline, at 2 months, and at 6 months, while radiographic parameters were recorded at baseline and at 6 months. Defect fill at baseline and at 6 months was calculated on standardized radiographs by using the image analysis software. Results Mean PD reduction and mean PAL gain were found to be greater in the ALN group than in the placebo group, both at 2 and 6 months. Furthermore, a significantly greater mean percentage of bone fill was found in the ALN group (41.05±11.40%) compared to the placebo group (2.5±0.93%). Conclusions The results of this study showed 1% ALN stimulated a significant increase in PD reduction, PAL gain, and an improved bone fill compared to placebo gel in chronic periodontitis among smokers. Thus, 1% ALN, along with SRP, is effective in the treatment of chronic periodontitis in smokers.

Effects of periodontal treatment on primary sjogren's syndrome symptoms

Abstract The aim of this longitudinal prospective study was to evaluate the effects of periodontal treatment on the clinical, microbiological and immunological periodontal parameters, and on the systemic activity (ESSDAI) and subjective (ESSPRI) indexes in patients with primary Sjögren’s Syndrome (pSS). Twenty-eight female patients were divided into four groups: pSS patients with or without chronic periodontitis (SCP, SC, respectively), and systemically healthy patients with or without chronic periodontitis (CP, C, respectively). Periodontal clinical examination and immunological and microbiological sample collection were performed at baseline, 30 and 90 days after nonsurgical periodontal treatment (NSPT). Levels of interleukin IL-1β, IL-8 and IL-10 in saliva and gingival crevicular fluid (GCF) were evaluated by ELISA, as well as the expression of Porphyromonas gingivalis (Pg), Aggregatibacter actinomycetemcomitans, (Aa) Tannerella forsythia (Tf), and Treponema denticola (Td), by qPCR. Systemic activity and pSS symptoms were evaluated by ESSDAI and ESSPRI. NSPT resulted in improved periodontal clinical parameters in both SCP and CP groups (p>0.05). Pg, Aa, and Tf levels decreased after NSPT only in CP patients (p<0.05). Significantly greater levels of IL-10 in GCF were verified in both SCP and CP groups (p<0.05). SCP patients showed increased salivary flow rates and decreased ESSPRI scores after NSPT. In conclusion, NSPT in pSS patients resulted in improved clinical and immunological parameters, with no significant effects on microbiological status. pSS patients also showed increased salivary flow and lower ESSPRI scores after therapy. Therefore, it can be suggested that NSPT may improve the quality of life of pSS patients.

Predictors of smoking cessation in smokers with chronic periodontitis: a 24-month study

Abstract The purpose of this 24-month study was to identify predictors of smoking cessation in a cohort of smokers with chronic periodontitis, attending a multidisciplinary smoking cessation program. Of the 286 subjects screened, 116 were included and received non-surgical periodontal treatment and smoking cessation therapy, which consisted of lectures, cognitive behavioral therapy, and pharmacotherapy, according to their individual needs. During initial periodontal treatment, dentists actively motivated the study subjects to stop smoking, using motivational interviewing techniques. Further smoking cessation counseling and support were also provided by the dentists, during periodontal maintenance sessions at 3, 6, 12 and 24 months of follow-up. Smoking status was assessed by means of a structured questionnaire, and was validated by exhaled carbon monoxide (CO) measurements. The Fagerström Test for Cigarette Dependence was used to assess smoking dependence. Of the 61 individuals that remained up to the 24-month examination, 31, 21 and 18 declared that they were not smoking at 3, 12 and 24 months, respectively. Smoking cessation after 24 months was associated with the male gender (OR = 3.77, 95%CI = 1.16-12.30), baseline CO levels less than 10ppm (OR = 5.81, 95%CI 1.76-19.23), not living or working with another smoker (OR = 7.38, 95%CI 1.76-30.98) and a lower mean Fagerström test score (OR = 5.63, 95%CI 1.55-20.43). We concluded that smoking cessation was associated with demographic, smoking history and cigarette dependence variables.

Proteína C reactiva en pacientes con periodontitis crónica / C-reactive protein in patients with chronic periodontitis

La Periodontitis Crónica surge en las últimas décadas como un posible factor de riesgo para el desarrollo de eventos cardiovasculares. Bajo estas premisas, nace un nuevo paradigma que orienta el logro de diagnósticos, formas de prevención, intervención temprana y estrategias en el tratamiento de la Periodontitis Crónica. La Proteína C Reactiva (PCR) ha resultado ser un marcador de inflamación sistémica asociado a la Enfermedad Arterial Coronaria y a la Periodontitis Crónica.Objetivo del estudio: Conocer los niveles de Proteína C Reactiva en pacientes con Periodontitis Crónica Material y métodos: Se seleccionaron 80 pacientes del Postgrado de Periodoncia de la Facultad de Odontología de la Universidad Central de Venezuela. El estudio fue de tipo descriptivo, observacional, prospectivo. La data fue migrada a SPSS 17.0, para el análisis estadístico. Para las variables cuantitativas se utilizó la media y la desviación standart. Para evaluar la correlación entre variables se utilizó el coeficiente de correlación de Pearson, la prueba de Chi cuadrado de independencia y el análisis de Varianza para un solo factor. Resultados: De la muestra poblacional, El nivel sérico de Proteína C Reactiva ultrasensible resultó Factor de Riesgo Cardiovascular en 47 pacientes (58,8 por ciento). Discusión y conclusiones: No existe asociación entre los niveles de la Proteína C Reactiva ultrasensible y la presencia de Periodontitis Crónica generalizada.

Microbiological effects of periodontal therapy plus azithromycin in patients with diabetes: results from a randomized clinical trial

Evidencia actual sugiere que la infección periodontal puede agravar el control de la diabetes. El objetivo de este estudiofue determinar los cambios en la frecuencia de detección de porphyromonas gingivalis, Tannerella forsythia, Treponema denticola y Aggregatibacter actinomycetemcomitans en pacientes con diabetes con el uso de terapia mecánica no quirúrgica mas azitromicina en un estudio clínico controlado aleatorizado.Ciento cinco pacientes (105) con diabetes y perio -dontitis fueron asignados aleatoriamente en tres grupos: terapiamecánica mas azitromicina, terapia mecánica mas placebo y profilaxis supragingival mas azitromicina. Un análisis periodontal completo y detección de patógenos perio dontales por medio de reacción en cadena de la polimerasa (PCR) se realizaron al inicio, 3, 6 y 9 meses después de la terapia pe -riodontal. La frecuencia de detección de Porphyromonas gingivalis, Treponema denticola y Aggregatibacter actinomycetemcomitans disminuyó a los 3 meses en todos los grupos. La frecuencia de detección de Tannerella forsythia se incrementó a los 3 meses en todos los grupos. Todos los patógenosperiodontales mostraron una frecuencia de detección similar a los 9 meses en todos los grupos. La terapia periodontal mas azitromicina no tuvo efectos adicionales sobre la frecuencia dedetección de los patógenos periodontales investigados en pacientes diabéticos...

Níveis séricos de vitamina D e periodontite crônica em pacientes com doença renal crônica / Serum levels of vitamin D and chronic periodontitis in patients with chronic kidney disease

INTRODUÇÃO A concomitância de periodontite crônica (PC) em pacientes com doença renal crônica (DRC) tem sido associada a desfechos adversos. A deficiência de vitamina D (25(OH)D) parece desempenhar papel importante na PC e níveis inadequados de vitamina D têm sido descritos em pacientes com DRC. OBJETIVO: Examinar a relação entre níveis séricos de vitamina D e PC em pacientes com DRC pré-dialítica. MÉTODO: Estudo de caso-controle, definidos, respectivamente, como pacientes com DRC e PC e DRC sem PC. Os dados demográficos, de exame físico e laboratoriais foram obtidos no dia da consulta. A DRC foi definida e estagiada segundo a NKF QDOKI TM. Os níveis séricos de 25(OH) D foram dosados por quimioluminescência quando da avaliação da PC, a qual foi caracterizada segundo os critérios de Academia Americana de Periodontologia (1999). Os resultados de 25(OH)D foram estratificados em deficiência (< 14 ηg/mL), insuficiência (15-29 ηg/mL) e suficiência (> 30 ηg/mL). RESULTADOS: Um total de 29 pacientes foram estudados, 15 no grupo caso e 14 no grupo controle. Os pacientes casos apresentaram mediana de 25(OH) D inferior a dos pacientes controles (22,6 vs. 28,6 ηg/mL; p < 0,01). A frequência de pacientes casos com insuficiência/deficiência de vitamina D foi maior do que entre os pacientes controles (93,3% vs. 57,1%, p < 0,004). Por outro lado, o percentual de pacientes com suficiência de vitamina D foi maior entre os controles se comparados aos integrantes do grupo casos (42,9% vs. 6,7%, p < 0,004). CONCLUSÃO: Em pacientes com DRC, a deficiência de vitamina D se associa com PC.

INTRODUCTION: Concomitance of chronic periodontitis (CP) in patients with chronic kidney disease (CKD) have been associated with adverse outcomes. Vitamin D (25(OH)D) deficiency my play a role in CP and inadequate vitamin D status is common among patients with CKD. OBJECTIVE: To examine the relationship between vitamin 25(OH)D and CP in patients with CKD not yet on dialysis. METHOD: A case-control study was conducted. Cases and controls were defined as patients with CKD with and without CP, respectively. The demographic, clinical and laboratory data were obtained when the patient was attended in the outpatient clinic. CKD was defined and staged according to the NKF QDOKI TM. Serum 25(OH) D levels were measured by chemiluminescence when assessing the CP, which was definined according to the American Academy of Periodontoly (1999). Serum 25(OH)D levels were stratified into deficient (< 14 ηg/mL), insufficient (15-29 ηg/mL) and sufficiency (> 30 ηg/ mL). RESULTS: A total of 15 cases were compared with 14 controls. Cases had lower median 25(OH)D levels than controls (22.6 versus 28.6 ηg/mL, p < 0.01) and were more likely to be categorized as vitamin D insufficiency/deficiency (93,3% versus 57,1%, p < 0,004). On the other hand, the percentage of controls with vitamin D sufficiency was higher then cases (42,9% versus 6,7%, p < 0,004). CONCLUSION: In patients with CKD not yet on dialysis, vitamin D deficiency is associated with CP.