Effects of a nonrinse conditioner and 17% ethylenediaminetetraacetic acid on the etch pattern of intact human permanent enamel.
作者： Zafer C. Çehreli , Nil Altay
DOI: 10.1043/0003-3219(2000)070<0022:EOANCA>2.0.CO;2
关键词:
摘要: Abstract The purpose of this study was to evaluate the effects 2 new acid-etching solutions, nonrinse conditioner (NRC) and 17% ethylenediaminetetraacetic acid (EDTA), on enamel surface morphology, compare solutions with traditional 37% phosphoric acid. effect prolonged etching time also investigated. buccal surfaces 80 extracted third molars were etched one 3 acids for 15, 30, or 60 seconds. central regions specimens examined a scanning electron microscope. Shorter resulted in relatively smooth compared longer treatments. Irrespective treatment time, NRC produced an aprismatic etch pattern, which suggested potentially retentive morphological character. EDTA had least all etchants tested.
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