Just recently, I switched to a new dentist that was closer to my work and I really love the work he does. He told me that over time, silver fillings will expand and contract (like metal tends to do) and create problems with the teeth. This could be in the form of cracking a tooth or contracting to allow cavities to form under the current filling. His advice to me was to replace all of my silver fillings over time with white ones that are stronger and last longer. I decided to be bold and do it all in 2 visits rather than extend the agony over a few years of visits.
4 and a half hours, 12 fillings and $1500 later, my mouth feels like a whole new woman :)
Warning: Disgusting close-ups of my mouth below... scroll down at your own risk...
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Before:
After:
I still kept my gold tooth though... I don't want to lose all of my street cred :)