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ابعاد البلعوم فيما يتعلق ببعض المتغيرات السنية والقحفية للصنف الهيكلي الاول والثاني : دراسة مقارنة بالاشعة القياسية الجانبية عند البالغين == Nasopharyngeal Dimensions In Relation To Some Dento - Cranium Variables of Class I And II Skeletal Patterns (A Cephalometric Comparative Study In Adults)
Author name:
عمار عباس فضل
Supervisor name:
فخري عبد علي الفتلاوي
General topic:
Dentistry
Specific topic:
Orthodontics
Degree:
Master
University:
University of Baghdad - Faculty Of Dentistry - Orthodontics Department
Language:
English
University location:
Baghdad
First pages:
20T364 - p.pdf
Abstract:
The size of the nasopharyngeal airway was believed to have an important role in the development of the dentofacial structure. Therefore, this study was done on 60 subjects (30 males and 30 females) at age range 18 - 25 years. Cephalometric radiograph has been taken to each subject and the measurements were recorded. The sample was divided into two groups, class I skeletal relationship (15 males and 15 females) and class II skeletal relationship (15 males and 15 females). Comparisons between the different study groups were undertaken and the following results were obtained.In class I skeletal relationship, all the nasopharyngeal liner measurements and all the dento - cranium linear measurements are significantly higher in males than females, except lower airway thickness (PNS - ad1) and upper airway thickness (PNS - ad2)showed no significant gender difference. While all the angular measurements showed no significant gender difference.In class II skeletal relationship, most of the nasopharyngeal liner measurements have no significant gender difference, while all the dento - cranium linear measurements are significantly higher in males than females. In comparison for class difference between class I and class II skeletal relations in total sample, all the nasopharyngeal linear measurements have no significant class difference, except lower airway thickness showed significant difference which were higher in class II than class I and upper airway thickness showed significant difference which were higher in class I than class In the whole sample of the study, positive correlation was found between lower airway thickness and upper airway thickness.
