Many patients assume a small cavity is simply a minor inconvenience that can wait until the next dental visit. Unfortunately, tooth decay rarely remains small. Once bacteria penetrate the protective enamel layer, the disease accelerates through the tooth's internal structures, often leading to severe pain, infection, facial swelling, tooth loss, and in rare cases, hospitalization for life-threatening complications.

Understanding how tooth decay progresses helps explain why dentists recommend treating cavities early instead of waiting until symptoms become unbearable.

By a USA Dental Clinical Review Team

Receiving a new dental filling should relieve pain—not create new symptoms. However, some patients in the United States notice that shortly after a filling, their tooth becomes sensitive when drinking cold or hot beverages and may even produce a squeaking, grating, or rubbing sensation while chewing.

Although these symptoms can be concerning, they are usually explainable and, in many cases, easily corrected by your dentist.

A landmark study published in PLOS ONE provides the earliest known evidence of invasive dental treatment in human history. Researchers led by Dr. Alisa Zubova examined a 59,000-year-old Neanderthal molar discovered in Chagyrskaya Cave in the Altai Mountains of Siberia.