Timing of orthodontic treatment, especially for children with developing class III malocclusions, has always been somewhat controversial, and definitive treatment tends to be delayed for severe class III cases.
Developing class III patients with moderate to severe anterior crossbite and deep bite may need early intervention in some selected cases.
Class III malocclusion may develop in children as a result of an inherent growth abnormality, i.e. true class III malocclusion, or as a result of premature occlusal contacts causing forward functional shift of the mandible, which is known as pseudo class III malocclusion.
These cases, if not treated at the initial stage of development, interfere with normal growth of the jaw bases and may result in severe facial deformities.
The treatment should be carried out as early as possible for permitting normal growth of the skeletal bases.
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Introduction : The incidence of class III malocclusion is rather small in the population, but it is one of the most difficult malocclusions to treat.
Class III malocclusions in children may have an underlying skeletal or dental component. Skeletal class III malocclusions are often seen with maxillary retrognathia, mandibular prognathia, or a combination of both, of which maxillary retrognathia constitutes in majority of these patients.
Pseudo class III malocclusion is a habitual established crossbite of all anterior teeth, without any skeletal discrepancy, resulting from functional forward positioning/shift of the mandible on closure.
MR Yelampalli / MR Rachala