Publications by authors named "Elgalaid T"
Design: This was a randomised controlled trial.
Intervention: Ozone treatment was delivered by HealOzone machines, one delivering air (control) and the other ozone (test), prepared and coded by the manufacturer (HealOzone; KaVo, Biberach, Germany).
Outcome Measure: Pain in response to a tactile stimulus or desiccation was assessed using a 100-mm visual analogue scale (VAS).
Objective: This study aimed to verify whether two demineralisation solutions, with different fluoride concentrations, would produce subsurface lesions in dentine, as assessed by microradiography, with different mineral loss profiles and, subsequently, to determine the dentine permeability of the two altered tissues.
Methods: Forty-five human coronal portions were prepared and randomly divided into two test groups (20 specimens each) with the remaining five as a control group. Each test group was exposed to a demineralisation solution containing either 1 or 5 ppm fluoride for five days.
Objective: The aim of this study was to determine the repeatability of apparatus designed to assess dentine permeability at two different pressures.
Method: Forty-five human coronal tooth portions were prepared and permeability was measured at two separate time points, 5h apart, at 14 cm H2O pressure and then at 100 cm H2O pressure. Repeatability was determined using the limits of agreement (LOA) method.
Objectives: The objectives of this experiment were to determine in vitro the permeability of teeth exhibiting a range of natural dentine caries and the effects of caries excavation and subsequent restoration on the dentine permeability of extracted teeth.
Methods: Forty-five human permanent molars with obvious occlusal caries were selected and coronal dentine permeability was measured before (baseline) and after caries excavation, as well as after acid etching the prepared cavity and finally, after restoration.
Results: The small permeability values for all teeth made statistical testing between the different stages of specimen preparation both meaningless and inappropriate.
Objective: The aim of this study was to determine whether a dentine bonding agent (DBA) had an effect in reducing fluid filtration under cemented provisional crowns.
Methods: Crown preparations on 34 premolars, randomly allocated to two equal-sized test and control groups, were assessed for dentine permeability by a fluid filtration technique. In the test group, prepared crowns were acid-etched and then treated with a DBA (Prime & Bond NT).