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Dental and Alveolar Arch Widths in Normal Occlusion and Class II Division 1 Malocclusion | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 1, Issue 1, June 2011, Pages 37-44 PDF (437.66 K) | ||
| DOI: 10.25130/tjds.1.1.7 | ||
| Authors | ||
| Jamal K. Mahmod BDS, MSc1; Anas K. Hamdy BDS, MSc2; Muhammed I. Hazem BDS, MSc.3 | ||
| 1(1) lecturer, Department of Preventive, Orthodontics and Pedodontics, College of Dentistry,University of Tikrit. | ||
| 2(2) Assistant lecturer Department of Preventive, Orthodontics and Pedodontics, Dentistry,University of Tikrit. College of Dentistry,University of Tikrit. | ||
| 3(3) lecturer, Department of Periodontolog, College of Dentistry, University of Tikrit. | ||
| Abstract | ||
| This study was to evaluate and compare dental arch and alveolar widths of patients with ClassII division one malocclusion with group of untreated normal occlusion subjects. This study was performed using measurement on dental casts of 30 normal occlusion and 30 Class II division 1 malocclusion of Iraqi sample aged 15-22 years. T-test was applied for comparing the groups , the finding of this study indicated that maxillary interpremolar width, maxillary canine, maxillary premolar and maxillary first molar and mandibular premolar and molar alveolar widths were found significantly narrower in the Class II division 1 group when compared with the normal occlusion sample (P<.001). The maxillary and mandibular intermolar and mandibular intercanine alveolar widths were statistically significantly larger in the Class II division 1 group ( P<.01) . Maxillary molar teeth in subjects with Class II division 1 malocclusion tend to incline to the buccal to compensate the insufficient alveolar base therefore rapid maxillary expansion rather than slow maxillary expansion should be considered during treatment of Class II division 1 patients. The results of our study suggested that transverse discrepancy in Class II division one malocclusion originated from upper posterior teeth and maxillary alveolar base. | ||
| Keywords | ||
| Normal occlusion malocclusion | ||
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