Composite resin fillings only have a lifespan of 5-7 years whereas amalgam fillings can last for 10-15 years: – Once a filling wears out it leaves teeth vulnerable to decay and new cavity formation. – Most fillings will need to be replaced at some point – hopefully before a new cavity has formed. – It’s important to visit your dentist for regular check-ups to make sure your fillings are checked. “A damaged filling needs speedy repair by your dentist; although unfortunately, some people don’t know that their filling has been damaged, which is why regular checkups are so important!” Read the full story here: https://yourdentalhealthresource.com/can-cavities-form-under-dental-fillings/
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