There are many reasons for<p> toothache. Generally speaking, there are mainly the following reasons that can lead to toothache. & lt/p & gt； & ltp> 1, dentin sensitivity causes toothache, which is caused by caries destroying dentin, poor calcification of enamel development or insufficient dentin exposure. & lt/p & gt； & ltp>2. Due to chewing food on one side for a long time, the teeth on one side are badly worn. This situation does not rule out the symptoms of toothache. & lt/p & gt； & ltp>3. It may be that you brush your teeth incorrectly for a long time, especially with a large saw, which will cause wedge-shaped defects in the neck of your teeth in the long run. & lt/p & gt； & ltp>4. If the root surface is scraped incorrectly, it may lead to gingival recession, exposure of the essence of the tooth neck and toothache. & lt/p & gt； & ltp style = \ " text-align:center \ " & gt； & ltimg src = \ "/uploadfile/image/202005121589244249405284.png \" title = \ "dental chart \" alt=\" dental chart \ "width = \. \ "/>； & lt/p & gt； & ltp> Of course, most people still have toothache due to dentin sensitivity. You can try to brush your teeth with desensitized toothpaste first, and stick to it for a while to see if there is any improvement. If it still doesn't get better, you need to go to the stomatological hospital for related treatment. & lt/p & gt； & ltp> We also need to remind everyone that we must pay attention to protecting our teeth when using them, so as to avoid similar oral problems and prolong the service life of our teeth. & lt/p & gt； & ltp>& ltstrong & gt Who else is paying attention to: