This is a tricky question and many theories exist. Crooked teeth are most commonly a sign of improper facial growth rather than teeth that are too big for the jaw.
The jaws are usually underdeveloped and this has been linked to narrowed tongue space and airways, which is associated with the progression of sleep disturbed breathing and consequent health risks.
Rather than crooked teeth being a purely genetic condition, the evidence suggests crooked teeth are a result of a complex interplay of our environment with our genes. The balance between the muscles of the tongue and the muscles of the lips and the cheeks will influence whether crowded teeth are expressed.
To find out more about crooked teeth, or to request an appointment with Redlands Gentle Dental Care, please contact us today.