Class III malocclusion and anterior crossbite are common clinical problems,
especially in patients of Asian ancestry. Management of the developing Class III
malocclusion continues to challenge practicing clinicians. This chapter focuses on the
treatment of Class III malocclusions in growing patients. The question arises as to what
type of Class III malocclusion will benefit from early treatment; when is a good time to
start an early phase of orthodontic or orthopedic treatment; how successful are these
treatments long-term; and do we have evidence in the literature to support early
treatment? Protraction facemask is used in the treatment of Class III malocclusions with
maxillary deficiencies. The question is whether side effects such as proclination of
maxillary incisors and loss of arch length can be resolved using a bone anchored
protraction device. These questions will be addressed and illustrated with clinical cases.
Keywords: Class III malocclusion, Frequency, Etiology, Diagnosis, Growth
Prediction, Early treatment, Chin cap therapy, Maxillary protraction, Bone
anchored protraction.
