The replacement of the baby teeth by the adult teeth occurs in two distinct phases: the first phase of replacement occurs between the ages of 5-7 years of age; the second phase between 11-14 years of age. During the first phase the permanent front teeth erupt in both the upper and lower jaws. In the […]
Most times a Herbst appliance will be sufficient to correct differences in jaw growth. In a few patients, the facial bones grow in so differently that a Herbst appliance or regular orthodontics are not enough to correct the bite. In order to achieve a functional bite the bones have to be realigned. Disparate facial bones […]
In some patients the lower jaw is small and needs assistance to match with the upper jaw. A Herbst (lower jaw advancing) appliance may be the additional help needed. Elastics sometimes are not enough to make the needed correction to the tooth alignment. A Herbst appliance is typically worn 8 months.
The canines (the fangs) are the “rogues” during human tooth development. Canines as a tooth type have the longest eruption time (from 3 months to 11 years). The are two possibilities in which the canines can destroy the permanent incisors: Sudden vertical growth of the face creates space above the maxillary incisors permitting the […]