What are the main causes of toothache and tooth loss?

The main causes of tooth pain and tooth loss mainly include the following points: 1. **Dental caries**: A lack of nutrients during tooth development or poor dietary habits may lead to dental caries (tooth decay). Dental caries can damage the enamel, cause toothache, and in severe cases, lead to loose teeth or even tooth loss. 2. **Pulpitis**: Long-term consumption of irritating foods may induce pulpitis, causing inflammatory exudate and increased pressure within the pulp cavity, which results in toothache. If the pulpitis worsens severely, it may lead to tooth loss. 3. **Periodontitis**: Damage to periodontal tissues, dental calculus, and other factors can easily trigger periodontitis. Inflammatory granulation tissue may gradually decay and damage the tooth root, thereby increasing the risk of tooth loss. 4. **Trauma**: External impact or biting hard objects may cause exposure of the tooth nerve or fracture of the tooth root, leading to pain and possible tooth loss. Once symptoms of toothache occur, timely medical attention is recommended to obtain an accurate diagnosis and appropriate treatment.