Tooth pain can strike suddenly, turning everyday activities like eating or drinking into moments of discomfort. Understanding the root causes is the first step toward relief and prevention. Here are the most common reasons why your teeth might hurt.
One of the leading culprits is tooth decay, also known as cavities. When plaque buildup produces acids that erode enamel, small holes form in the teeth. As decay progresses toward the sensitive dentin and pulp, sharp pain emerges, especially when consuming sweet, hot, or cold foods.
Gum disease (gingivitis or periodontitis) is another frequent offender. Inflamed or infected gums pull away from the teeth, exposing roots that lack protective enamel. This results in sensitivity and aching, often accompanied by bleeding gums or bad breath.
Tooth sensitivity affects millions and often stems from worn enamel or receding gums. Exposed dentin tubules allow stimuli like cold air, icy drinks, or sweets to reach nerves, triggering brief but intense pain.
Cracked or fractured teeth, caused by injury, grinding, or biting hard objects, create pathways for bacteria to enter the pulp, leading to inflammation and throbbing pain. Similarly, abscesses—pockets of pus from bacterial infections—cause severe, persistent pain, swelling, and even fever if untreated.
Teeth grinding (bruxism), often stress-related and occurring at night, wears down enamel and strains jaw muscles, resulting in chronic soreness. Impacted wisdom teeth can also press on neighboring teeth or nerves, causing dull or sharp pain in the back of the mouth.