الفهرس 
Incisor crowdingOnly 14 pages are availabe for public view
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Abstract
Dental crowding is a discrepancy between tooth and jaw size. The dental arch may be predisposed to crowding due to excessively large teeth, small dental arch dimensions or combination of large teeth and small dental arches. It was prevalent in the anterior region of the mandible. The aim of the present study was to assess the lower anterior crowding in relation to tooth size and arch dimensions in the early mixed dentition and find a correlation between them. The present study was carried out on 300 children in mixed dentition stage with fully erupted permanent mandibular incisors, class I molar relation with mandibular anterior crowing and no appearant skeletal discrepancies. The stone casts were categorized according to the amount of
crowding into crowded (more than 1.6 mm) and noncrowded (less than or equal to 1.6 mm) groups. Digital caliper was used to measure the space
available of permanent mandibular incisors, tooth size and arch dimensions.Our results revealed that, Space available, arch perimeter, primary
intercanine width, first and second primary intermolar widths, permanent
intermolar width and arch depth were significantly decreased in crowded
group. While, the tooth size and overbite showed significant increase in
crowded group. Positive correlation was found between tooth width and crowding. While, Negative correlation was found between space available, arch perimeter, primary intercanine width, first and second primary intermolar widths,permanent intermolar width, overjet and crowding