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Source publication
This study was designed to evaluate the effects of an air-powder polishing system on the hot cure acrylic denture base material, which was cured in the water bath and microwave method, and comparing it with a conventional dental lathe polishing specimens.Thirty samples were made from the hot cure acrylic resin denture base after being cured in wate...
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Context 1
... plate 80x10x3.0 mm in dimensions as in figure-1 (length, width and thickness respectively) was prepared and fixed into flat glass plate. Stone slurry was prepared (33ml water/100gm powder) and poured in the lower half of flask, and the rest of stone mixture, poured into the wax plate and vibrated to allow trapped air to come out, then turned over the stone in the lower half of flask [11] . ...
Context 2
... paired test for WB method (before and after polishing) using airflow polishing system (10 and 30 seconds) compared with the dental lathe polishing method (2 minutes) (as control group) for polished acrylic denture base material. The mean surface roughness Figure (10) there are showed increase from (0.01250m) to (0.01720m) in the period (10 seconds), and in the period (30seconds) had shown increase from (0.01580m) to (0.02230m), while in the period (2 minutes) polishing show decrease from (0.01350m) to (0.004100m). However, in (10 seconds) the mean weight factor of hot cure acrylic resin was increased from (0.333060 mg) to (0.334380 mg) and in the period (30 seconds) shows decreased from (0.329020 mg) to (0.328000 mg), while in the control group (2 minutes) polishing show increased from (0.313740 mg) to (0.315700 mg). ...
