Intraoral examination showed a light crowding in both arches, Class III dental relationship on the right side and Class I dental relationship on the left side.
Egyptian patients, on the other hand, showed an opposite tendency toward increased frequency of ovoid arch form in Class II malocclusion, a finding that supports the observation of ethnic variations in the distribution of arch forms [ 25].> -wrap-foot> *Chi-square testatisticallyally significant.
95 101 Furthermore, more generalised anomalies in the craniofacial region have also been shown to be associated with missing teeth, including alterations in dental arch form, presence of Class II division 2 craniofacial type and sella turcica bridging.
Dysmorphic features include frontal bossing, a long and narrow face with a prominent maxillary arch, a class II malocclusion with relative micrognathia, slightly large ears, a smooth upper lip, and a smooth philtrum (Figure 2A B).
However, other studies reported that Class II arches were more commonly associated with tapered arch forms and lower prevalence of the ovoid arch form in Caucasian subjects [ 22, 23].
No association was observed between the presence of a significant Bolton discrepancy and the sagittal molar relationship or arch form (Table 3).> -wrap-foot> *significantly significANOVANOVA showed no significant difference in anterior ratio or overall ratio by sagittal molar class or arch form for the study sample as a whole.
Ciger et al. [9] evaluated changes in dental arches in class II division 1 malocclusion patients after non-extraction treatment with cervical headgear and full fixed orthodontic appliances.
The vertical growth patterns are correlated with the transverse growth of the upper arch in skeletal class II.
In this study, conclusions can be summarized as follows: The vertical growth patterns are correlated with the transverse growth of the upper arch in skeletal class II.
The fixed appliance edgewise technique was used for upper arch expansion, and Class II traction force 120 200 g per side was prescribed for full-time traction after obtaining arch compatibility.
