en ارتودنسی Orthodontics پژوهشي Research <strong>Introduction </strong><p> The aim of this study was to examine whether there is a relationship between the position of impacted maxillary canines and the morphology of the maxilla.</p><strong>Methods</strong> <p> The palatally impacted canine group included 18 boys and 27 girls with an average age of 12 years 9 months (±2 years 1 month). The buccally impacted canine group comprised 19 boys and 26 girls with an average age of 12 years 2 months (±1 year 4 months). Arch length/intermolar width × 100 was used as the value for comparison of maxillary arch shapes, and palatal vault depth/intermolar width × 100 was used to compare the shapes of palate between the 2 groups. Each category was directly measured from the diagnostic model.</p><strong>Results</strong> <p> Both the arch length/intermolar width × 100 and the palatal vault depth/intermolar width × 100 formulas showed statistically significant differences (<i>P</i> <0.0001), indicating differences in the shape of maxillary arch and the palatal vault between the 2 groups.</p><strong>Conclusions</strong> <p> The shape of the maxillary arch was narrower and longer in the palatally impacted canine group compared with the buccally impacted canine group, and the palatally impacted canine group had a deeper palatal vault than did the buccally impacted canine group. </p><hr><p></p><p> <strong> Source: </strong>American<strong> </strong>Journal of Orthodontics and Dento facial Orthopedics </p><p><a href="http://www.ajodo.org/article/PIIS0889540612000790/abstract" target="_blank"><font color="#0000cc">  Full text</font></a> </p> 0 0 http://idai.ir/browse.php?a_code=A-10-32-484&slc_lang=en&sid=1 Yoojun Kim 10031947532846001964 10031947532846001964 No School of Dentistry, Seoul National University, Seoul, Korea Jong-Keun Hyun 10031947532846001965 10031947532846001965 No School of Dentistry, Seoul National University, Seoul, Korea Ki-Taeq Jang jangkt@snu.ac.kr 10031947532846001966 10031947532846001966 Yes School of Dentistry, Seoul National University, Seoul, Korea