Dental crowding happens when there isn’t enough space for all the adult teeth to be nicely aligned. Extra teeth are very rarely the reason behind this. Sometimes it’s due to early loss of baby teeth and this disrupts the normal development of a well aligned set of teeth, so we’d recommend every child have an orthodontic assessment around age 7 or earlier if there have been orthodontic or dental problem. Sometimes it’s a mismatch between tooth size and jaw size, and sometimes it’s related to the shape and development of the jaws. Your orthodontist will be able to examine and investigate the problem and advise you on options to prevent it, minimise it or resolve it.
Sometimes this is due to baby teeth being lost early.