###Human: What is the treatment for a broken back tooth of a 10-year-old? ###Assistant: Hi. If it is the second last tooth of the last side, then it is the last milk tooth that got broken, as it falls off in between age 9 to 11 years. If it is the last tooth of arch that got broken it is the permanent molar tooth. It is the only permanent molar in arch till 12 years of age. If it is molar, it is some serious issue. Get root canal treatment or filling done because this is the primary molar that will aid in chewing for your daughter's entire life. If it is deciduous or milk tooth then you need not to worry. A permanent tooth from beneath might have given pressure for the eruption, and so milk tooth will be wearing off after becoming hollow. A hollow tooth is caused by cavities or a broken part of tooth. I can tell you a better exact diagnosis if you can provide me with clinical picture of your daughter's teeth. If it is painful right now, you can give simple Brufen syrup (Ibuprofen) 8 hourly for three days. Stay happy and blessed.