أبعاد القوس السنية حالات الصنف الثاني النموذج الأول في مرحلة الإطباق المختلط عند مرضى السوريين : دراسة على الأمثلة الجبسية

الملخص EN

Background & Objective: The measurements of dental arch dimensions have had considerable implications in diagnosis and treatment planning in a modern dentistry.

Regarding the importance of this side, so the purpose of this study was to evaluate dentoalveolar arch dimensions of Syrian subjects with normal occlusion compared with those with Class II division 1 malocclusion, and to determine the gender effects on dentoalveolar arch dimensions.

Materials & Methods: This study was performed using measurements on dental casts of 40 normal occlusion (22 male, 18 female) and 40 untreated Class II division 1 (19 male, 21 female).

The age of the patients ranged 8-10 years in mixed dentition.

Two-sample t-test was used to compare dimensions of arches in the two study groups.

Results: The findings of this study indicated that substantial narrowness in the width measurements of the upper and lower dental and alveolar arches are found between Class II division 1 malocclusion group and normal occlusion group.

This study showed that substantial increases in the anterior and total dental arch length and anterior and posterior palatal height are found between Class II division 1 malocclusion group and normal occlusion group.

There wasn΄t relation between the gender and dimensions of the dental and alveolar arches in groups of this study.

Conclusions: The results have shown important differences in the dimensions of the dental and alveolar arches of Syrian society subjects from most previous studies, so we can conclude that there are special attributes and dimensions for dental arches of our people which are dissimilitude than other societies.

The transverse discrepancy in Class II division 1 patients originates In both arches from dental and alveolar regions.