Dental crowns are most widely used as a shield to weak, damaged or injured tooth. A tooth which is severely decayed or the one which has a large tooth filling may need a protective cap which can provide it physical support to withstand bite forces. The crown should be designed to perfection to perfectly cover the natural tooth and mimic its appearance. A dental crown is made of metal or ceramic materials which can be finely moulded into shape. This restoration prevents the tooth from falling out and avoids tooth decay and other problems.