Body Mass Index (BMI). Body Mass Index (BMI) is measure of body fat based on height and weight that applies to both adult men and women. BMI does not differentiate between body fat and muscle mass. Therefore, body builders and people who have a lot of muscle bulk will have a high BMI but are not overweight or obese.
The bump: or hematoma as we call it, can last for 1-2 weeks. Sometimes it gets slightly worse before it gets better. If the child is acting normally, and not vomiting uncontrollably, she should be fine. If she starts doing those things, call your pediatrician.
Once the braces are on, your child will have to visit the orthodontist every few weeks for monitoring and adjustments. How long your child will need to wear braces depends on the problems the orthodontist is trying to fix, but the average is about 2 years. After that, your child might wear a specially molded retainer â a small, hard piece of plastic with metal wires or a thin piece of plastic shaped like a mouthguard.