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The mesiodistal Crown Width Measurements and Bolton Analysis in Down's Syndrome with Class I Normal Occlusion. (A Comparative study) | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 4, Issue 1, 2007, Pages 74-81 | ||
| Authors | ||
| Dr.Tariq Talal Raiq B.D.S; ; ; Dr. Nidhal H. Ghaib B.D.S; Dr. Dheaa H. Abd Awn B.D.S; | ||
| Abstract | ||
| Information concerning tooth size in human population is important for clinician, since it may explore the role of genes and their possible effect on the dental characters, as the tooth size and morphology served as genetic markers. Aims of study: to compare the mesiodistal crown width of patient with Down's syndrome to that of control norms and explore the possible irregularities between the left and right side for both jaws in different sexes and to totaled and computed the Bolton ratios for the different groups. Material and methods: This study was conducted on 58 patients with Down's syndrome aged (13-21) years; the mesiodistal crown dimension was estimated for the upper and lower permanent teeth and compared with those of control group matching the age and the Angle classification (Class 1) Results showed a non significant sexual dimorphism in both arches and showed a similar size order distribution to the control group .but the mean width value of the Down's patient significantly smaller than that of norms with some exceptions, these factors make the Bolton value to increase to a great extent than the original one | ||
| Keywords | ||
| Keyword; Bolton ratio; Down | ||
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