I recently took my 6 yr old ds for a dental check up. Our new (Polish) dentist suggested he'd like to extract one of his perfectly healthy lower milk teeth, to make room for the new one that is beginning to appear. He says it will prevent the need for braces later on but I am slightly alarmed! My dd had exactly the same problem and we just let nature take it's course and her teeth are lovely and straight. Ds isn't bothered but I don't want him to have a bad experience at this early age. What do you think?