Water evaporation from substrate tooth surface during dentin treatments

概要

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The purpose of this study was to evaluate changes in the quantity of water evaporation from tooth surfaces. The amount of water evaporation was measured using Multi probe adapter MPA5 and Tewameter TM300 (Courage+Khazaka Electric GmbH, Köln, Germany) after acid etching and GM priming of enamel; and after EDTA conditioning and GM priming of dentin. The results indicated that the amount of water evaporation from the enamel surface was significantly less than that from the dentin. Acid etching did not affect the water evaporation from enamel, though GM priming significantly decreased the evaporation (83.48±15.14% of that before priming). The evaporation from dentin was significantly increased by EDTA conditioning (131.38±42.08% of that before conditioning) and significantly reduced by GM priming (80.26±7.43% of that before priming). It was concluded that dentin priming reduced water evaporation from the dentin surface.