Within any dental laboratory, the dusts generated during routine procedures by dental technicians such as trimming and polishing acrylic dentures and orthodontics appliances can’t be avoided. The floating dusts in the dental laboratory created a dirty and dusty workplace. It has been worse reported that the dental technicians may be exposed to potentially harmful and hazardous workplace because of the materials used and the procedures . The air in the dental laboratory is also polluted due to the floating concentration of silica to be up to 0.051 mg/m3. Case reports indicated that dust generated through grinding metallic dental materials have caused pneumoconiosis .