Banca de QUALIFICAÇÃO: MARCELA EMÍLIO DE ARAÚJO
Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.DISCENTE : MARCELA EMÍLIO DE ARAÚJO
DATA : 04/05/2018
HORA: 14:30
LOCAL: Departamento de Odontologia
TÍTULO:
Influence of a high potency light emitting diode (led) on the retina of rats
PALAVRAS-CHAVES:
Curing Lights, Orthodontics, Retina, Rats
PÁGINAS: 25
GRANDE ÁREA: Ciências da Saúde
ÁREA: Odontologia
SUBÁREA: Ortodontia
RESUMO:
Introduction: The evolution of photopolymerizers as to their potency and consequent reduction of clinical time has been shown to be of great value for the bonding routine of orthodontic brackets optimization. However, there is a lack in the literature regarding the effect of these devices on the retina of practitioner and/or patient, since they may indirectly receive part of the reflected light during clinical procedures. Objectives: Evaluate the influence of a high power light emitting diode based (LED) light curing device on the ocular structure of Wistar rats. Material and methods:Six Wistar rats were used in the research and their ocular structures were the objects of study. During the photostimulation of each animal, the right eye of the animal, considered as control sample, was covered with a removable PVC tampon, while the contralateral eye - the experimental sample - was exposed to high power LED light, 3200mW / cm2 (Valo Ortho - Ultradent) for 144 seconds at 30cm of distance. The animals were exposed to the LED three times a day for one day (acute injury). Seven days after photostimulation, the animals were anesthetized, euthanized, and their eyes were removed and histologically processed. The slides were be scanned using a camera connected to an optical microscope and their images stereologically analyzed to gauge the morphological parameters of the retina.
MEMBROS DA BANCA:
Presidente - 1009536 - SERGEI GODEIRO FERNANDES RABELO CALDAS
Externo ao Programa - 1378325 - ARTHUR CESAR DE MEDEIROS ALVES
Externo ao Programa - 1076490 - FERNANDO VAGNER LOBO LADD