[en] In this study, we compared the microleakage of composite fillings cured with halogen bulb, LED and argon ion laser (488 nm). Twenty-four extracted human molars were divided randomly in three groups. Six cavities were prepared on the coronal part of each tooth. Standard cavities (1.7 x 2 mm) were prepared. Cavities were acid etched, sealed with Scotch Bond 1 and filled by a hybrid composite. Cavities were exposed to one light source, thermocycled and immersed in a 2% methylene blue dye solution. Dye penetration in the leakage of cavities was recorded using a digital optical microscope. Mean values of percentage of dye penetrations in microleakages of cavities were 49.303 +/- 5.178% for cavities cured with LED, 44.486 +/- 6.075% with halogen bulb and 36.647 +/- 5.936% for those cured by argon laser. Statistically significant difference exists between cavities cured by halogen vs LED (P < 0.01), halogen vs laser (P < 0.001) and LED vs laser (P < 0.001). The lowest microleakage was observed in the cavities and composites cured with argon ion laser.
Disciplines :
Dentistry & oral medicine
Author, co-author :
Tielemans, M.
Compère, Philippe ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Département des sciences et gestion de l'environnement
Geerts, Sabine ; Université de Liège - ULiège > Département de science dentaire > Dentisterie conservatrice de l'adulte - Occlusodontie
Lamy, Marc ; Université de Liège - ULiège > Département de science dentaire > Prothèse amovible - Diagnostic oral
Limme, Michel ; Université de Liège - ULiège > Département de science dentaire > Orthodontie et pédodontie
De Moore, R. J. G.
Delmé, K. I. M.
Bertrand, M. F.
Rompen, Eric ; Centre Hospitalier Universitaire de Liège - CHU > Médecine dentaire
Namour, Samir ; Université de Liège > Département de sciences dentaires > Département de sciences dentaires
Language :
English
Title :
Comparison of microleakage of photo-cured composites using three different light sources: halogen lamp, LED and argon laser: an in vitro study
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