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1.
Rev. Fac. Odontol. (B.Aires) ; 33(75): 15-22, jul.-dic. 2018. ilus
Article in Spanish | LILACS | ID: biblio-999406

ABSTRACT

La extrusión dentaria o erupción forzada es una opción de tratamiento con enormes ventajas cuando nos vemos obligados a tratar fracturas corono-radiculares. Se define como el movimiento en dirección coronal a través de la aplicación de fuerzas ligeras y continuas para provocar cambios en los tejidos blandos y hueso. La extrusión dental forzada amplía las alternativas en cuanto a la rehabilitación futura del paciente, ya que se puede optar por la restauración periférica total con anclaje del resto radicular, o bien por la exodoncia posterior a la extrusión, con la consecuente mejoría de las condiciones del tejido óseo para una posterior rehabilitación implanto-asistida. Presentación de caso clínico, pieza dentaria 2.2 con fractura corono-radicular en la cual se realizó tratamiento de erupción forzada y rehabilitación protésica (AU)


Extrusion or forced eruption es a treatment option with enormous advantages when we are forced to treat crown-root fractures. It is defined as the movement in the coronal direction through the application of light and continuous forces to cause changes in the soft tissues and bone. Forced dental extrusion expands the alternatives regarding the future rehabilitation of the patient, since it is possible to choose either total peripheral restoration with anchoring of the radicular rest of the post-extrusion extraction, with the consequent improvement of bone tissue conditions for subsequent implant-assissted rehabilitation. Presentation of a case report: tooth 2.2 with a crown-root fracture in which forced eruption and prosthetic rehabilitation were performed (AU)


Subject(s)
Humans , Female , Adult , Tooth Fractures/therapy , Tooth Root/injuries , Tooth Crown/injuries , Orthodontic Extrusion , Dental Prosthesis, Implant-Supported , Dental Restoration, Permanent
2.
Rev. bras. plantas med ; 18(1,supl.1): 341-348, 2016. tab, graf
Article in Portuguese | LILACS | ID: lil-782984

ABSTRACT

RESUMO Tivemos como objetivo avaliar o efeito da infusão de Cunila microcephala Benth sobre a atividade da enzima acetilcolinesterase (AChE) e marcadores de estresse oxidativo em eritrócitos de agricultores. Foram utilizadas amostras provenientes de 16 trabalhadores rurais expostos a pesticidas agrícolas pelo período mínimo de 5 anos e um grupo controle constituído de 16 indivíduos não expostos a agrotóxicos. As hemácias dos agricultores e o grupo A foram expostos “in vitro” à solução salina (NaCl 0,9%). Os demais grupos foram expostos à infusão de poejo nas concentrações de 0; 5; 10; 25 e 50 g/L (Grupos B; C; D e E, respectivamente). Em seguida, foram realizadas as determinações da atividade da AChE e dos níveis de substâncias reativas ao ácido tiobarbitúrico (TBARS), proteínas carboniladas (PCs) e glutationa reduzida (GSH). Os resultados mostram que a infusão de poejo 50g/L, aumenta a atividade da enzima AChE e os níveis de GSH. Contudo, os níveis de TBARS e PCs diminuíram após o tratamento com a infusão de poejo 25 e 50 g/L. A infusão de poejo, na concentração de 50 g/L, é capaz de reverter, “in vitro” a inibição da atividade da AChE que ocorre pela exposição a pesticidas, e ainda demonstra um importante potencial antioxidante, tendo em vista que diminuiu danos lipídicos e proteicos e ainda, estimulou a produção do principal antioxidante não enzimático endógeno.


ABSTRACT Evaluating the effect of infusion Cunila microcephala Benth on acetylcholinesterase activity (AChE) enzyme and on biomarkers of oxidative stress in farmers erythrocytes. We used samples from 16 rural workers exposed to pesticides for a minimum of five years, and a control group composed of 16 individuals not exposed to pesticides. The erythrocytes of farmers and from group A were exposed “in vitro” the saline solution (NaCl 0,9%). The other groups were exposed to the infusion of “poejo” at concentrations of 0; 5; 10; 25 and 50 g/L (Groups B, C, D and E, respectively). Then, it was realized the analitical determinations of AChE activity and TBARS, PCs and GSH levels. The results showed that “poejo” infusion 50g/L, increased the AChE activity and GSH levels. However, the TBARS e PCs levels decreased after the treatment with “poejo” infusion 25 e 50 g/L. The “poejo” infusion 50 g/L is able to revert “in vitro” the inhibition of AChE activity that occurs by exposure to pesticides and also demonstrates an important antioxidant potential, given that decreased lipid and protein damage and also it stimulated the production of the main non-enzymatic antioxidant endogenous.


Subject(s)
Humans , Acetylcholinesterase/pharmacology , In Vitro Techniques/instrumentation , Biomarkers/analysis , Oxidative Stress , Lamiaceae/classification , Pesticides , Erythrocytes/classification , Farmers/classification
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