Search results for " plaque"
showing 10 items of 233 documents
Activation of complement by the alternative pathway as a factor in the pathogenesis of periodontal disease.
1976
Dental plaque and a bacterium, Actinomyces viscosus, isolated from plaque that can reproduce periodontal disease in germ-free rats, are activators of complement by the alternative pathway. It is suggested that this process is involved in the pathogenesis of chronic inflammatory periodontal disease.
Comparison of the detection of periodontal pathogens in bacteraemia after tooth brushing by culture and molecular techniques
2016
Background: The prevalence and amounts of periodontal pathogens detected in bacteraemia samples after tooth brushing-induced by means of four diagnostic technique, three based on culture and one in a molecular-based technique, have been compared in this study. Material and Methods: Blood samples were collected from thirty-six subjects with different periodontal status (17 were healthy, 10 with gingivitis and 9 with periodontitis) at baseline and 2 minutes after tooth brushing. Each sample was analyzed by three culture-based methods [direct anaerobic culturing (DAC), hemo-culture (BACTEC), and lysis-centrifugation (LC)] and one molecular-based technique [quantitative polymerase chain reactio…
A randomized clinical trial to evaluate the plaque removal efficacy of an oscillating-rotating toothbrush versus a sonic toothbrush in orthodontic pa…
2018
ABSTRACT Objective: To compare the plaque removal efficacy of an oscillating-rotating electric toothbrush with an orthodontic brush head versus a sonic toothbrush in adolescent patients with fixed orthodontic appliances. Materials and Methods: This was a randomized, examiner-blind, replicate single-use, two-treatment, four-period, crossover study with a washout period between visits of approximately 24 hours. Forty-four adolescent patients with fixed orthodontic appliances in both arches were randomized based on a computer-generated randomization schedule to one of four toothbrush treatment sequences. The primary outcome was plaque score change from baseline, measured using digital plaque i…
Update on the Management of Pediatric Psoriasis: An Italian Consensus
2022
Introduction Psoriasis affects children with a considerable burden in early life. Treating pediatric psoriasis is challenging also because of the lack of updated specific guidelines. With the recent approval of several biologics for pediatric psoriasis and the ongoing COVID-19 pandemic, the management of young psoriatic patients is facing major changes. A revision of treatment recommendations is therefore needed. Methods In September 2021, a board of six Italian dermatologists convened to update treatment recommendations. The board issued evidence- and consensus-based statements covering relevant areas of pediatric psoriasis, namely: assessment of psoriasis severity, management of children …
Evaluación de la eficiencia de la incorporación de pruebas hematológicas al control preoperatorio de pacientes odontoestomatológicos hospitalarios
2015
El manejo del paciente antiagregado en el ámbito odontológico es un tema ampliamente debatido en la literatura actual. Existen diferentes protocolos en los que se diferencian las actuaciones dependiendo del tipo de procedimiento. En los procedimientos simples o menores, parece generalmente establecida la no necesidad de supresión del tratamiento antiagregante oral (AAO). Sin embargo, en los procedimientos mayores, complejos o invasivos existen dudas sobre la decisión a seguir y se presentan varios dilemas como el tiempo de supresión de AAO, los riesgos de supresión o no en relación a la patología que indicó la antiagregación, el manejo de casos de tratamiento antiagregante combinado, o en c…
Optimization of the detection of bacteriophages induced from Listeria sp.
1997
It is necessary to isolate new phages in order to improve the rate of typeability of Listeria monocytogenes strains. We propose a method which increases the detection of induced phages in the presence of inhibitory substances synthesized or liberated by the cells during phage production. Of the 29 phages isolated, 11 (38%) were detected by the spot-on-the-lawn technique and 18 (62%) were revealed by the soft-agar technique. To increase the rate of phage detection, both techniques appear useful. Listeria cultures were subjected to phage typing procedures utilizing these newly isolated phages and the French International set of phages. It appears that the newly isolated phages are good tools …
Purified Membrane-Containing Procapsids of Bacteriophage PRD1 Package the Viral Genome
2009
Icosahedral-tailed double-stranded DNA (dsDNA) bacteriophages and herpesviruses translocate viral DNA into a preformed procapsid in an ATP-driven reaction by a packaging complex that operates at a portal vertex. A similar packaging system operates in the tailless dsDNA phage PRD1 (Tectiviridae family), except that there is an internal membrane vesicle in the procapsid. The unit-length linear dsDNA genome with covalently linked 5'-terminal proteins enters the procapsid through a unique vertex. Two small integral membrane proteins, P20 and P22, provide a conduit for DNA translocation. The packaging machinery also contains the packaging ATPase P9 and the packaging efficiency factor P6. Here we…
Non-surgical periodontal treatment with a new ultrasonic device (Vectortm-ultrasonic system) or hand instruments. A prospective, controlled clinical …
2004
Objectives: The aim of this prospective, randomized, controlled clinical study was to compare the effectiveness of a newly developed ultrasonic device to that of scaling and root planing for non-surgical periodontal treatment. Material and Methods: Thirty-eight patients with moderate to advanced chronic periodontal disease were treated according to an “one-stage procedure” with either a newly developed ultrasonic device (VUS) (Vector™-ultrasonic system) or scaling and root planing (SRP) using hand instruments. Clinical assessments by plaque index (PlI), gingival index (GI), bleeding on probing (BOP), probing depth (PD), gingival recession (GR), and clinical attachment level (CAL) were made …
Le vécu des sujets atteints de sclérose en plaques : modalités intersubjectives et conjugalité, stratégies adaptatives
2016
Supplément consacré aux Journées de Neurologie de langue française 2016; International audience; Introduction : Notre recherche porte sur l’illness, maladie du point de vue du malade, évènement corporel et psychique qui réorganise la vie psychique du sujet, influence son rapport à autrui.Objectifs : Nos objectifs consistent en l’évaluation et l’analyse de la perception des sujets quant à leur vécu émotionnel, leurs modalités intersubjectives, leurs stratégies adaptatives et leurs liens éventuels.Patients et méthodes : L’échantillon se compose de 79 sujets porteurs de SEP rémittente-récurrente (suivis EDMUS ; EDSS : m = 2,75[2,06] ; durée SEP : m = 10,47[6,08]). Sept auto-évaluations ont été…
La Ortopantomografía como método para la detección de las placas de ateroma calcificadas: Revisión de la literatura
2006
Los accidentes cerebrovasculares (ACV) constituyen la tercera causa de muerte en los países industrializados, tras la cardiopatía isquémica y el cáncer. Se trata pues de un importante problema de Salud pública, no sólo por su elevada incidencia, sino también por el alto costo que genera la rehabilitación física y psicológica de estos pacientes. El Odontoestomatólogo, como profesional de la salud, debe implicarse ante esta situación y contribuir, dentro de sus posibilidades, a la detección precoz de los pacientes con riesgo de sufrir un ACV. Desde la década de los ochenta, distintos autores han descrito la posibilidad de detectar las placas de ateroma calcificadas localizadas en la bifurcaci…