How to describe toothache? As the saying goes, “a toothache is not a disease, but a pain that kills you”. So, why do teeth hurt? Are all toothaches the same? Guess what? The answer is revealed below – the main cause of tooth pain is the inflammatory reaction caused by bacterial infection of the dental pulp or periodontal tissue. The characteristics of toothache are different at different stages of inflammation. In the early stages of pulp infection, there is congestion, and at this stage, there is usually no significant persistent pain in the tooth. Most people only feel pain from hot and cold stimuli, and many of them are “transient” sensitive, not painful. However, if you ignore the discomfort at this stage, you are likely to miss the best time to treat it. As the inflammation increases, the pulp begins to exude pulp, during which the pressure inside the pulp chamber in the middle of the tooth gradually rises sharply with the development of inflammation, causing nerve pain (kind of like a pressure cooker at home)! The pulp tissue is broken down by bacteria and turns into a fluid liquid, at which point the tooth will feel a constant pain, which will then develop into a throbbing pain (a bouncing pain). The pain at this time is mostly accompanied by a change in the level of pain due to postural changes, and most of them are aggravated at night. What you do feel is that once you try to sleep at night, the pain is heavy when you lie down and relieved when you stand up. When the inflammation progresses again, there will be pulp necrosis, and at this stage you will have a strange feeling: cold water stimulation does not hurt anymore, but feel comfortable, both the pain is not so bad, the root of the tooth is a little itchy, and others have a feeling of swelling, the tooth rises high, and will be comfortable when biting hard. (Very happy? I’m telling you – you’re in danger!) At this moment, the inflammatory substance is moving down the root canal to the root tip, thus causing the root to become inflamed, and in serious cases within a short time, local swelling, loose teeth, afraid to touch, and so on. If the inflammatory material then destroys the bone around the root, it can penetrate the gum and form a “fistula”. You will have a “little bag” on your gums – you see it? And you’ll see some pus and blood coming out, right? At this point, the persistent pain will be over for a while, and if there is no acute aggravation, you may feel that the toothache is better, so you think you are lucky, right? But if there is no fistula, the inflammatory material nest under the root can not be drained, the pressure is not released, the pain is not much lighter than the acute phase of pulpitis. By the way, this stage is very sensitive to thermal stimulation, cold stimulation without pain drops. The above is the general sense of the pain caused by pulpitis and its progression. There are other causes of toothache. The common ones are “cryptoconjunctivitis” – most people may have a sudden pain when they bite into a certain position early on, and it is very sensitive. Some quacks will tell you it’s a tooth allergy, so you try almost every desensitizing toothpaste you can get, but the problem doesn’t go away. Instead, the tooth starts to hurt from hot and cold stimuli, and then, boy, look above, review, it’s the same as “pulpitis”. Yes, it is indeed the same symptoms as pulp infection. Are there any other causes? Well – there can be! “Periodontitis is also a common cause of toothache, except that it usually develops to a severe stage when the root of the tooth is exposed due to the destruction of the alveolar bone, causing inflammation of the pulp inside the tooth caused by external stimulation. Clinically, this type of dental disease is called “retrograde pulpitis”. Another friend said, “I have a wisdom tooth and I have a toothache too!” –That’s right, it’s possible. When a wisdom tooth grows, it usually presses on the surrounding bone and causes discomfort. However, this pain is usually “intermittent”; also, if the wisdom tooth comes out diagonally, it may break the 7th in front, causing the 7th to develop pulpitis. Older friends may also encounter another situation. After the corner of the mouth, the “buccal side of the posterior teeth” (what, you don’t know what “buccal side” is? Then please go back to the first lecture and review the “description of the tooth position”, okay?) Back to the point – on the buccal side of the back teeth near the edge of the gums there is a “groove” defect, and if it is deep, it will hurt even if you brush your teeth or drink water. Please note, if you have this condition, please review your brushing posture. This defect is clinically called “wedge-shaped defect”, and it is only seen when the brushing posture is not correct, yes! –It is only seen when you brush your teeth incorrectly, yes! The reason for the discomfort is the pain caused by the defect being too deep and close to irritating the pulp of the tooth. This area is the closest part of the tooth to the pulp. This is the closest part of the tooth to the pulp. It is also the step of “pulpitis”. So, at this point, it is probably clear that no matter what damage your tooth is suffering from, it generally comes down to a “pulpitis” – “periapical infection” process. The process. The actual “all roads lead to Rome, the gods are all pulpitis” ah.