Common signs include tooth sensitivity, visible dark spots, discomfort when chewing, or food repeatedly getting stuck in one area. An examination and dental imaging can help identify whether the tooth can be treated with a filling.

Yes. Early treatment is important because untreated decay can eventually cause severe discomfort, infection, or even tooth loss.

Persistent throbbing pain, swelling, fever, cracked teeth, or prolonged sensitivity may indicate nerve damage or infection that requires additional treatment.

In many cases, yes. X-rays help identify decay between teeth and beneath the surface, where visual exams alone cannot detect damage.

If the pain comes from a cavity, a filling can often restore the tooth and relieve discomfort. However, deeper infections may require more advanced care.