Dental fire requires dental treatment or scaling. Tooth fire is a common clinical phenomenon, mostly seen in people with low immunity, the body’s resistance and bacterial invasion ability are in a dynamic balance, when anxious fire, the resistance decreases, the bacterial invasion ability strengthens, and the symptoms of toothache appear. Oral examination can see that the tooth itself is decayed, and the decayed part is close to or reaches the dental nerve, in this case, it is necessary to remove the infected dental hard tissue, remove the bacterial infected part, and then carry out the filling treatment of the tooth to isolate the external stimulation. If the tooth nerve is already infected by bacteria, root canal treatment is needed. Tooth fire can also be caused by gingivitis or periodontitis. Food debris accumulates around the teeth after eating, causing redness and swelling of the gum tissue. When anxious about fire, the bacterial activity of plaque increases, the symptoms of gingivitis are more obvious, and the tooth pain is aggravated, in which case the teeth need to be scaled to remove the irritants, and then a rinse around the gums is applied. Therefore, tooth fire requires a filling or root canal treatment, as well as scaling to improve the periodontal condition.