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.

Prevalence and Clinical Manifestation of Mesiodens

Supernumerary teeth are rare orthodontic phenomenon. The most common observed supernumerary tooth is mesiodens. It develops between the maxillary central incisors and leads to severe disturbances. We found out that the prevalence of supernumerary teeth is 1.82% and the prevalence of mesiodens is 40.74% from all of the cases with supernumerary teeth.