2 years old child teeth up and down bite is not aligned, according to the specific situation can be regularly observed or orthodontic treatment.
1. Normal children’s upper and lower bite is not aligned, generally the lower jaw relative to the upper jaw will have a little backward, which is conducive to the health of the temporomandibular joints, but also conducive to the teeth to play the function of mastication, this situation does not need to be treated.
2. If the child’s upper and lower teeth are always biting together, or the lower teeth wrap around the upper teeth when biting, this is not normal, indicating that the position of the lower jaw relative to the upper jaw has moved forward, this situation first need to quit such as biting the upper lip and other bad oral habits, and then according to the recommendations of the orthodontic professional use of functional orthodontic appliances and other orthodontic correction.
If the child is found to have the phenomenon of paronychia, it is necessary to intervene as early as possible, otherwise there is a certain probability that it will become a bony deformity in adulthood, and orthognathic surgery may be required.