Comparison of the occluso-gingival crown length between Egyptian and Saudi Arabian samples

ABSTRACT

This investigation was carried out on a sample of 200 Saudi adolescent subjects [100 males and 100 females]. All the subjects had accepted normal occlusion. Their ages ranged from 16-21 years. This study was carried out to establish normative data of the occluso-gingival crown height of the twelve permanent maxillary and mandibular anterior teeth and to compare the results of this sample with that of the Egyptian one. New vertical standards for bracket levels were developed. The coronal height of all the teeth investigated were found to be significantly larger in the Saudi males than the females. The maxillary teeth of the Egyptian males were found to be significantly longer than that of the Saudi one except the central incisors and canines which showed no statistical significant difference. The mandibular teeth of the Egyptian males were found to be significantly longer than that of the Saudi one except the central and lateral incisors and the first molar, which showed no statistical significant difference. The maxillary and mandibular teeth of the Egyptian females were found to be longer than those of the Saudi ones except the central incisors which revealed no statistical significant difference