Thumb sucking is a very natural thing for a child to do, and for many it develops as a reflex. While it can be a useful method for stress reduction and coping for infants, it can become a problem as the child ages and starts developing teeth.
Since thumbs or fingers come in direct contact with teeth that are coming in, they have a direct impact on the growth and future state of the teeth and jaw. Not only could this result in crooked or unhealthy teeth, but it could also have impacts on a child’s speech and/or bite. That means that until the child is old enough for braces, talking or chewing may be difficult or irregular.
Normally, children tend to stop sucking their thumbs as their teeth begin to come in. In some cases this is due to the child developing other coping mechanisms due to language or mobility. However, many children continue to suck their thumbs or fingers past infancy. Some studies show that even in children as young as two years, thumb sucking can have negative effects on the jaw. (more…)