<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello sir my female baby 3.5 years old sleeping by opening her mouth.is it will cause her face style or it will affect teeth? what is the remedy to close her mouth at the time of her sleep  <response>: HelloWelcome to Chat Doctor As per Your history your child seems to be having proposal problem. This may be due to congenital defects by birth or may be due developmental problems related to pharynx oral cavity, throat, some lymphoid tissue problemstonsils, adenoidsetc. Please have checkup done by the pediatrician and by ENT surgeon for evaluation of the defects. Early medical and surgical intervention will clear the problem otherwise there may be defects in speech, teething problems enclave a Healthful Day. 