Why are my children’s teeth sensitive? It is not uncommon for children who have braces to experience sensitivity issues. The metal brackets and wiring can cause teeth to become overly sensitive over time. Dealing with this sensitivity and ensuring that it is kept at bay can help to improve the overall oral health of your child and how they feel. You will notice that they are less likely to complain about how their teeth feel when you take steps to ensure that they are using products that will help and work with what they need.