what causes crooked teeth?
It is a common belief that crowded teeth, incorrect jaw development and other orthodontic problems are caused by either large teeth in small jaws, or other hereditary factors.
Modern research has shown that mouth breathing, tongue thrusting, reverse swallowing and thumb sucking – known as incorrect myofunctional habits – are the real causes of incorrect jaw development. Allergies, asthma and an open mouth posture can also contribute towards the jaws developing incorrectly.
Bottle feeding, thumb sucking, and dummies during the early stages of a child’s life can also contribute to the problem.