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Register a new userThe relationship between impacted mandibular third molar area morphology and mandibular length in adults with skeletal malocclusion in the sagittal plane
العلاقة بين الصفات الشكلية لمنطقة الرحى الثالثة السفلية المنطمرة و طول الفك السفلي عند مرضى بالغين لديهم سوء اطباق هيكلي في المستوى السهمي
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اعتبرت منطقة الرحى الثالثة السفلية موضوعا مثيرا للاهتمام لزمن طويل ، و واحدة من القياسات التي تم دراستها لسببين و هما: أولا أن الارحاء الثالثة السفلية هي ثاني أكثر الاسنان انطمارا [1,2 ]، ثانيا أن نقص هذه المنطقة يعتبر سببا أساسيا لانطمار الرحى الثالثة السفلية، لذلك يعتبر التشخيص الشعاعي لمنطقة بزوغ الرحى الثالثة السفلية مسألة هامة لأخصائي تقويم الأسنان و الفكين و ذلك لدورها الهام في بزوغ الرحى الثالثة السفلية التي تلعب دورا في ازدحام القوس السنية السفلية و استقرار المعالجة التقويمية. هدف البحث: دراسة العلاقة بين الصفات الشكلية لمنطقة الرحى الثالثة السفلية المنطمرة و طول الفك السفلي عند مرضى بالغين لديهم سوء اطباق هيكلي في المستوى السهمي و تحري أي تأثير للجنس على هذه المنطقة عند هؤلاء المرضى باستخدام الصور الشعاعية السيفالومترية.
Impacted mandibular third molar area has been a topic of interest for a long time, and one of the most investigated parameters for two reasons:1- the lower third molars are the second most frequently impacted teeth[1,2 ]. 2- the lack of space is considered to be the major cause of this.so the radiographic diagnosis for this area is an important issue for orthodontists because of it's important role in mandibular third molar eruption wich play an impact on lower arch crowding and stability of orthodontic treatment. Objective:to study the relationship between impacted mandibular third molar area morphology and mandibular length in adults with skeletal malocclusion in the sagittal plane and to investigate the effect of sex on this area in these subjects by using cephalometric radiographic.
References used
BISHARA SE, ANREASEN G. Third Molars: a review. Am J Orthod 1983; 83(2):131−7
GROVER PS, LORTON L. The incidence of unerupted permanent teeth and related clinical cases. Oral Surg Oral Med Oral Pathol 1985; 59(4): 420−5
BJORK A, JENSEN E, Palling M. Mandibular growth and third molar impaction. Acta Odontol Scand1956;14:231-72
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