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- W2394131240 abstract "Objective To evaluate the possibility of using Er:YAG laser irradiation as a preparing method before placing the pit and fissure sealant by observing the microleakage of pit and fissure sealant.Methods 20 extracted molars were selected and divided into four groups.The occlusal fissures were prepared by four methods.A:the occlusal surfaces were cleaned by cup-shaped brush and acid-ected;B:a high-speed bur was associated with acid-etching;C:Er:YAG laser was used to treat the surfaces;D:Er:YAG laser was associated with acid-ecting.Pits and fissures were sealed with a resin-based sealant.The specimens were thermocycled,immersed in 0.5% fuchsin dye,sectioned,and analyzed for leakage using an optical microscope connected to a video camera.Results Fissures prepared with Er:YAG laser alone showed the highest degree of microleakage(P0.05).No significant difference was found between the 3 types of enamel preparation when etching was performed(P0.05).Conclusion Laser irradiation did not eliminate the need for acid etching enamel prior to the placement of a pit-and-fissure sealant." @default.
- W2394131240 created "2016-06-24" @default.
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- W2394131240 date "2009-01-01" @default.
- W2394131240 modified "2023-09-23" @default.
- W2394131240 title "Study on microleakage of pit and fissure sealant from Er:YAG laser irradiation" @default.
- W2394131240 hasPublicationYear "2009" @default.
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