Poor oral hygiene can lead to tooth decay and gum disease, which are common causes of toothache. Not brushing and flossing regularly allows plaque and bacteria to build up on teeth, leading to cavities and infections.

Dental trauma, such as a cracked or fractured tooth, can result in toothaches. This can occur due to accidents, sports injuries, or biting down on a hard object. The exposed nerves within the tooth can cause significant pain and sensitivity.

Gingivitis and periodontitis, which are forms of gum disease, can cause toothaches. Inflammation of the gums can lead to gum recession, exposing the sensitive roots of the teeth and causing discomfort.

Tooth sensitivity, often caused by tooth enamel erosion or gum recession, can result in toothaches. When the protective layers of the tooth are damaged, the nerves within the teeth become more exposed and susceptible to pain.

An impacted wisdom tooth can cause severe toothache. When a wisdom tooth does not have enough space to fully emerge or is trapped beneath the gum line, it can lead to pain, swelling, and infections.

In some cases, sinus infections can cause toothache. The roots of upper teeth are in close proximity to the sinuses, so when sinuses become infected or inflamed, it can lead to referred pain in the teeth.