pulpitis
Medical term for inflammation of the dental pulp, often causing toothache.
歯髄炎になると、冷たいものがしみる。
When you have pulpitis, cold things cause a sharp pain.
The dentist performed root canal treatment for the pulpitis.
虫歯 is a cavity or tooth decay, which can lead to 歯髄炎 if it reaches the pulp.
Compound of 歯髄 (dental pulp) and 炎 (inflammation).