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Article
Dental arches dimensions, forms and its association to facial types in a sample of Iraqi adults with skeletal and dental class II-division 1 and class III malocclusion (A cross sectional study)

Authors: Hanadi M. H. Al-Taee --- Sami K. Al-Joubori سامي كاظم الجبوري
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 2 Pages: 160-166
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The association between facial types and dental arches forms has considerable implications inorthodontic diagnosis and treatment planning. The aim was to establish the maxillary and mandibular dental archeswidth and length in skeletal and dental class II division 1 and class III malocclusion groups, find out the most frequentdental arch form and facial type and the association between them and to check the gender differences.Materials and Methods: Frontal and lateral facial photographs and maxillary and mandibular occlussal photographsfor 90 iraqi subjects with age 18-25 years old (45 males and 45 females) divided equally into three groups, the 1stgroup with class II division 1malocclusion (overjet more than 3mm but less than or equal to 6mm), the 2nd group withclass II division 1malocclusion (overjet more than 6mm) while the 3rd group with class III malocclusion (edge to edgeor reverse overjet).Six linear measurements for each maxillary and mandibular dental cast photographs and twoliner measurements for frontal and profile facial photographs was analyzed with (AUTO CAD 2013), which simplifiedthe analyzing process and reduced the time and effort spent on taking measurements directly from the records tofacilitate work and to gain more accurate results.Results: All the mean value of dental arches and facial measurements were higher in male than female, the mostfrequent maxillary and mandibular dental arch form in the three groups was the mid arch form follow by the narrowthen the wide arch form except in the mandibular dental arch of the 3rd group it follow by the wide then the narrowarch form.The most frequent facial type in the 1st group is the Mesoprosopic one,followed by the Leptoprosopic thenthe Euryprosopic face type while in the 2nd and 3rd group the most frequent facial type is the Leptoprosopic, followby the Mesoprosopic then the Euryprosopic facial type. An association was found between mid arch form and theMesoprosopic face type in the 1st group, while no clear association was found between dental arch form and facialtype in the 2nd and 3rd group for both genders.Conclusions: It was concluded that there was an association between facial type and dental arch form in subjectwith class II division 1malocclusion (overjet not more than 6mm), while in subject with class II division 1malocclusion(overjet more than 6mm) or with class III malocclusion (edge to edge or reverse overjet) no clear association wasfound between dental arch form and facial type


Article
Prevalence of Bad Oral Habits and Relationship with Prevalence of Malocclusion in Sammawa City Students Aged (6-18) Years Old
سعه انتشار عادات الفم السيئة وعلاقتها بسعة انتشار سوء الاطباق في طلاب مدينه السماوة بعمر (6-18) سنه

Author: Hayder S. Al-Atabi
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2014 Volume: 11 Issue: 1 Pages: 70-83
Publisher: Babylon University جامعة بابل

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Abstract

Background : These oral habits maybe seen in children, adolescents and adults causing serious effect on their facial growth and dentition that is to say they may be related to malocclusion which is a condition where there is departure from the normal relation of the teeth in the same dental arch or to the teeth in the opposing arch.Materials and methods: This study was conducted from 10 April 2011 to 29 may 2013 on (3300 ) students and (300) students as control group aged (6-18) years old attending primary ,intermediate and secondary schools in Sammawa city which lies 280km to the south of Baghdad, itself part of middle furat of Iraq were studied with respect to bad oral habits ,sagittal occlusion according to Angle's classification, overjet, overbite, posterior crossbite and spacing and crowding. Results: The sample consisted of 3300 students. 786 students of all the age groups were found to have bad oral habits, which represented 23.8% of the total sample examined in this study (411,52.3%) of the 786 were males and (375,47.7%) were females. Some of the students had a single habit ( 481,61.2%) and others were found to have multiple habits (305,38.8%). The most prevalent habit was nail biting (184,23.4%),followed by tongue thrust (169,21.5%), digit sucking (147, 18.7%), mouth breathing (129,16.4%), lip habit (111,14.1%), and the least was other habits (46,5.9%).Conclusion: The Prevalence of malocclusion in digit sucking group had very highly significant difference when compared with control group followed by tongue thrust group, mouth breathing group while other groups had low significant difference.

الخلفية العلمية:- عادات الفم السيئة يمكن مشاهدتها في الاطفال ,المراهقين والبالغين وتسبب تأثير خطير على نمو الوجه والاسنان بطريقه ترتبط بسوء الاطباق وهو حالة الابتعاد عن العلاقة الطبيعية بين الاسنان في نفس الفك السني اوبين الاسنان في الفك المقابل.المواد والطرائق:- هذه الدراسة اجريت من العاشر من شهر نيسان اعام 2011 ولغايه التاسع والعشرين من شهر ايار لعام 2013 على عينه متكونه من (3300) طالب و(300) طالب كمجموعه تحكم بعمر (6-18) سنه يحضرون في المدارس الابتدائية ,المتوسطة والثانوية في مدينه السماوة التي تقع على بعد 280 كم الى الجنوب من بغداد وهي نفسها جزء من الفرات الاوسط في العراق وتم تطبيق المقاييس من ناحية عادات الفم السيئة, الاطباق في المستوى السهمي حسب تصنيف انكل ,فرط البروز, فرط العظة, الاطباق المعكوس الخلفي ,الفراغات والازدحام.النتائج:- العينة تتألف من 3300 طالب. 786 طالب فقط من كل مجاميع الاعمار يمتلكون عادات فم سيئة وهي تمثل نسبة 23.8 % من العينة الكلية المفحوصة في هذه الدراسة (52.3,411% ) منهم ذكور و (47.7,357% ) منهم اناث .بعض الطلاب يمتلكون عاده سيئة واحده فقط (61.2,481% ) والاخرين يمتلكون عادات سيئة متعددة (38.8,305% ). العادة السيئة الاوسع انتشارا هي قضم الاظافر (23.4.184% ) تليها عاده دفع اللسان (21.5,169% ),مص الاصابع (18.7,147% ) ,التنفس من الفم (16.4,129% ) ,عادات الشفه (14.1,111% ) وكانت الاقل انتشارا العادات الاخرى (5.9,46% ). الخاتمة:- سعه انتشار سوء الاطباق في مجموعه مص الاصابع عالية جدا عند مقارنتها بمجموعه التحكم تليها مجموعه دفع اللسان ,مجموعه التنفس من الفم اما بقيه المجاميع فلم يظهروا اختلافات كثيرة عند مقارنتها بمجموعه التحكم.

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