Dr Mitch :When a dental crown has to be removed to treat decay underneath it, many patients ask, “Can’t you just put the same crown back on?” It sounds like a reasonable way to save money, but in most cases the answer is no.
Removing a crown is much like removing a light bulb by smashing it with a hammer. The goal isn’t to destroy it, but crowns are cemented so securely that they usually must be cut or pried off, often causing tiny fractures or distortion that can’t be seen with the naked eye. Even if the crown looks perfectly fine, it may no longer fit with the precision needed to protect the tooth.
Once the decay is removed, the shape of the tooth changes. The dentist must eliminate all the damaged tooth structure, leaving a healthy foundation. Because the tooth is now a different size and shape, the original crown no longer fits accurately. Even a microscopic gap between the crown and tooth can allow bacteria to sneak in, leading to more decay, sensitivity, or even the need for root canal treatment.
Dr. Jonathan: Modern crowns are custom-made to fit each tooth with incredible precision. After the tooth is repaired, a new impression or digital scan is taken so a laboratory can fabricate a crown that seals the tooth properly and restores your bite.
Think of a crown like a tailored suit. If the person wearing it changes size, the old suit simply won’t fit the same way. A new, precisely fitted crown is the best way to protect your investment, preserve your tooth, and keep your smile healthy for years to come.