Although it is normal for babies to suck their thumb, doing so for long-term could negatively affect their oral and facial development. When children suck their thumbs or fingers, they can affect their teeth and jaws in different ways.
Some children create what is commonly known as a dental open bite (a vertical space between the upper and lower teeth where the teeth do not touch). Open bites are notoriously the most difficult to correct. You can take help from pediatric dentists for thumb sucking prevention in children.
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Other children will suck in such a way that it appears that their top teeth are "sticking out". Surprisingly, in cases like this, it usually the bottom jaw that people are more concerned about. This is because the thumb or finger prevent the lower jaw from coming forward and grow well.
Pressure is applied on the thumb against the chin can affect the normal growth of the jaw which negatively affects the child's face. In addition, note the following positive effect on the elimination of sucking his teeth.
The negative effects of the teeth and jaw depends on the frequency, intensity and duration of sucking habits of children. Frequency is the number of times the sucking child during the day.
The intensity is the amount of force applied to the teeth and jaws during sucking. Duration is the total amount of time spent sucking. More frequent, more intense and longer duration of sucking habits, the more likely it is to affect the structure of children's oral develop and jaw.