Gradually pour the dental stone from roughly an inch over the impression, beginning in an area that is beyond the impres

So basic ingredients of plaster dental stone and die stone is the calcium sulfate hemihydrate but the main difference is

ثم يتم وضع هذه الخرسانة المختلطة على هزاز. يستخدم الهزاز لإزالة ال

This mixed concrete is then placed on a vibrator. A vibrator is used to remove air from the mixture and fill the impress