Amir Manouchehri
Shiraz Dental University,Fars,Iran
Title: The new expansion appliance with routine 3 axis expansion appliance in terms of dental arch changes and patient’s problems during treatment
Biography
Biography: Amir Manouchehri
Abstract
The aim of this study is to evaluate the correlation between lateral cephalometry and Hand-wrist in short stature in Shiraz and also to evaluate craniofacial morphology in short stature patients.
Method and materials:
178 patients divided into two groups containing 76 patients (38 female and 38 male) as familial short stature and 102 patients (52 female and 50 male) patients as other short stature except as familial origin. Lateral cephalometry and Hand-wrist radiogragh in determining skeletal age were measured using K-statistic. In addition 50 patients were selected for comparing craniofacial morphology in short stature patients with patients with 147 (47 female and 73 male) class II malocclusion without short stature status.
Result: In familial short stature patients the Kappa static between lateral cephalometry and Hand-wrist radiographs for determining skeletal age was measured as 0.6361, which can be considered as good relationship. In short stature patients with other etiologic factors the Kappa statistic between lateral cephalometry and Hand-wrist radiographs for determining skeletal age was measured as 0.615 which is also a good relationship. In evaluation of craniofacial morphology of patients with short stature male patients had shorter anterior cranial(P=0.01) base and more convex profile than normal patients with class I malocclusion (P=0.005). Female patients had shorter (P=000.1) , more convex profile and more vertical anterior cranial base (P=0.0001). Class II growth tendency than normal class I patients malocclusion patients had more convex profile, larger anterior cranial length and more vertical growth pattern comparing to short stature patients both female and male (p<0.05).
Conclusion: Lateral cephalometry radiographs can be used instead of Hand-wrist radiographs for determining skeletal age without the need for further exposure in short stature patients. Short stature patients have more vertical growth pattern and more convex profile than normal class I malocclusion patients.