Root dentin morphology after different modes of citric acid and tetracycline hydrochloride conditioning.
作者： Roland Labahn , Wolf H. Fahrenbach , Stephen M. Clark , Tryggve Lie , Donald F. Adams
DOI: 10.1902/JOP.1992.63.4.303
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摘要: The purpose of this study was to assess the effect citric acid and tetracycline HCl application dentin surfaces by a “passive dripping” or an “active burnishing” technique. Twenty blocks were prepared from freshly extracted non-diseased human impacted third molars. root planed randomly assigned two groups for treatment with either HCl. duration 30, 60, 120, 240 seconds. Control treated distilled water. After processed observation measurements in scanning electron microscope (SEM). Application solutions resulted removal smear layer. Measurements indicated time dependent increase mean dentinal tubule orifice diameter ranging 1.05 μm control specimens 3.18 after 4 minutes (citric group). significantly greater (P≤ 0.01) both modalities tha...
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