These are fixed replacements to your missing teeth and are cemented over the existing teeth. Crowns act as a cap or covering over the damaged or root canal treated teeth and hence reinforce its strength. Bridges, in the same way with the help of existing adjacent teeth closes the gap of missing teeth. Fixed bridges take the support from healthy natural teeth and replace the missing tooth. It restores the normal functions of chewing, speaking and maintains the facial form. The bridges are mostly made of porcelain fused to metal and range from steel crowns to full ceramic crowns. These are of superior strength and can withstand forces of chewing. They are also durable for long term if maintained properly.