When decay has been taken out of the tooth, it is replaced with "filling" material. In the past, amalgam (silver/mercury) fillings were placed into the cleaned out portion of the tooth. You may notice that silver fillings look dark, and can be easily seen when you laugh. With advancements in dentistry, you can now have tooth-colored fillings instead of silver fillings. Tooth colored fillings bond to the tooth, creating a seal that helps to prevent future decay. Your smile will also look wider and brighter, giving you a more youthful appearance. You may even elect to remove your old silver fillings and replace them with natural tooth-colored fillings.