to assess the effect of time and temperature (in the pumice mixing phase of olive oil extraction) on the quantity and quality features of the extracted oil, a series of experiments comprised of three levels of mixing time (10, 20, and 30 min), and three levels of mixing temperature (30, 45, and 60°c) were carried out. the recorded data were analyzed in the framework of a randomized complete blo...

PURPOSE To evaluate the shear bond strength of resin luting agent to dentin surfaces cleansed with different agents like pumice, ultrasonic scaler with chlorhexidine gluconate, EDTA and the influence of these cleansing methods on wetting properties of the dentin by Axisymmetric drop Shape Analysis - Contact Diameter technique (ADSA-CD). MATERIALS AND METHODS Forty coronal portions of human th...

Nitrate adsorption onto the physically and chemically modified pumice was investigated as an effort for reducing groundwater pollution. The treatments were heating at temperatures of 300°C, 450°C, 600°C physical soaking in acid solutions (HCl, H 2 SO 4 , HNO 3 ) chemical treatments. performed a batch system room temperature (25±1°C) with optimum condition (pH 4; 0.3 g/L adsorbent dose; <63 µ...

PURPOSE The purpose of this study was to assess the periodicity of the recall examination and frequency and most often used technique for cleaning children's teeth. The resulting data were compared to current scientific evidence and recommendations to determine the appropriateness of practices by board-certified pediatric dentists. METHODS A 28-item questionnaire was mailed to the 1,034 membe...

OBJECTIVES Surface attributes of a restoration play an important role in adherence of plaque bacteria. Prophylaxis methods may be involved in modification of or damaging the restoration surface. The aim of the present study was to evaluate the effect of two prophylaxis methods on adherence of Streptococcus mutans to the surface of two restorative materials. STUDY DESIGN A total of 60 specimen...