11/05/2019

Correction of a Skeletal Class III with Anterior Cross Bite using Maxillary Protraction Therapy

Orthodontic

The skeletal Class III malocclusion though comparatively small in incidence is one of the most difficult malocclusion to treat.

It can be due to maxillary retrognathism, mandibular prognathism or both. Reverse pull Headgear or Face Mask have been used for early maxillary protraction.

Face mask therapy has been shown to improve the skeletal relationship. The article presents a case report of the skeletal class III treated using a Face mask and Reverse Twin block appliance.


INTRODUCTION : The incidence of skeletal class III is rather small in the population but it is one of the most difficult malocclusion to treat.

Class III malocclusions are often seen with maxillary retrognathia, mandibular prognathia or a combination of both. Ellis and McNamara found that 65-67 % of all Class III malocclusion were characterized by maxillary retrognathia.

Read Also: ORTHODONTICS : Serial extraction of primary teeth

Thus maxillary protraction is an important paradigm in early management of Class III malocclusion. It was Jean Delaire who popularized in 1970s the concept of maxillary protraction with his device called the facial mask.

In 1983 Henry Petit modified the Delaire mask by increasing the amount of force generated by the appliance. Present article shows a skeletal class III with anterior cross bite treated with face mask and a reverse twin block appliance.

READ FULL ARTICLE HERE


° Vineet G, Pooja S (2014) Correction of a Skeletal Class III with Anterior Cross Bite using Maxillary Protraction Therapy. JSM Dent 2(2): 1028.


Tambien te puede gustar