Ratio of non-extraction and extraction treatments for patients with class II malocclusion

Orthodontic treatment with extraction is technically more complex due to a number of factors. Therefore, good finishing results can be more difficult to achieve. With the method of distalization of upper molars, we increase the dimensions of the tooth arch in the distal area, gaining space in the middle and frontal segment for the alignment of the teeth. This approach is appropriate alternative in borderline cases between treatment with extractions and non-extraction treatment of patients with class II malocclusion.

Aim: To determine the ratio between the treated by us cases of class II malocclusion with extraction of two upper premolars and these with distalization of the first molars by the Pendulum appliance. To determine the average age at which these treatments start and the distribution by gender.