
Nobody ever says they wish they had darker teeth, but that’s exactly what can happen with time with older, porcelain-fused-to-metal crowns. That’s because as you age, your gums can recede, leaving behind a dark line around the edge of your tooth up at your gumline. Thankfully, this poses no risk to your teeth, however it doesn’t exactly look attractive. Thus, if you notice any metal exposure due to gum recession, it’s a great time to consider replacing your crown.
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