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Article
Dental arches dimensions, forms and the relation to facial types in a sample of Iraqi adults with skeletal and dental class I normal occlusion

Authors: Haider M.A. Ahmed حيدر احمد --- Fakhri A. Ali فخري عبد علي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2012 Volume: 24 Issue: special issue 1 Pages: 99-107
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The face is a three dimensional object, facial structures are arranged to give the face its normal form.The teeth are arranged in an arch that’s based on the jaw which is a part of the facial structure. The dental arch hascertain forms depending on several factors including the skeletal form of the jaw and it is calculated in terms ofdifferent ratios of several arch dimensions. The aim of this study is to establish normative values for the Maxillary andMandibular Dental arches dimensions represented by dental arch width, length and to find out the most frequentdental arch form and facial type and the role of gender differences and to find out if there is a the relationshipbetween the facial type and dental arches form and which is the most frequent facial type and dental arch form.Materials and methods: The sample was selected from Baghdad University, college of Dentistry. A total of 72 Iraqiadult Dental students fit the criteria of this research with an age range between 18 and 25 years. The samplecomposed of one hundred forty four Dental casts, seventy two frontal photographs, seventy two profile photographsand One hundred forty four Dental casts’ photographs six linear measurements for Maxillary dental cast and six linearmeasurements for Mandibular Dental cast and two liner measurements for frontal and profile facial photographs.Orthodontics is one of the fields that took advantage of high speed personal computers such as Pentiums by utilizingspecialized orthodontic programs (software) which have automated some of the more laborious tasks in diagnosisand treatment planning, storage and sorting of information. So the use of computers is obligatory in our modern lifethat’s why it was used in almost everything in this study from obtaining the record and analyzing them for typing anddirecting this thesis. Specialized computer software for orthodontic record analysis (AUTO CAD 2007) were used,which simplified the analyzing process and reduced the time and effort spent on taking measurements directly fromthe records to facilitate work and to gain more accurate results.Results: It had been found that all of the maxillary dental arch dimensions are greater than mandibular dental archdimensions in the total sample and both genders and all of the measured dental arch dimensions have asignificantly greater mean value in males than in females also in general facial measurements were higher in femalesthan males with a high significant difference except in the nasion gnathion distance in which it was not significantdifferences between both genders. The most frequent facial type in males and females is the Mesoprosopic one,followed by the Euryprosopic while the least frequent is the Leptoprosopic face type while the mid arch form is themost frequent arch form and it is usually associated with Mesoprosopic face type in both genders followed by thewide dental arch form and the narrow dental arch form.Conclusions: It was concluded that the relation between facial type and dental arch form is a perfect positivecorrelation and as the facial type graduated from Leptoprosopic to Mesoprosopic to Euryprosopic then the MaxillaryDental arch form increases from narrow to mid to wide


Article
Proposal auditing program to achieve Sustainable Development
برنامج تدقيق مقترح لتحقيق التنمية المستدامه

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Abstract

That sustainable development is the best use of resources and wealth manner that does not disturb the destiny of future generations, so research aims to design audit program includes a set of procedures and classified to the dimensions of sustainable development (economic, environmental, social and Institutional) and indicators, to the Ministries of State for ensures policy and strategies control of the State by the parties responsible for control whether internal or external to the achieve needs of current and future generations and development goals.

إنَ التنمية المستدامة هي الاستغلال الامثل للموارد والثروات بطريقة لا تخل بمقدرات الاجيال القادمة، لذا يهدف البحث الى وضع برنامج تدقيق يتضمن مجموعة من الاجراءات ومبوبة حسب ابعاد التنمية المستدامـــــة(اقتصادية، بيئية، اجتماعية ومؤسسية) ومؤشراتها وحسب وزارات الدولة يضمن مراقبة السياسات واستراتجيات الدولة من قبل الجهات المعنية بالرقابة سواء الداخلية او الخارجية لتحقيق حاجات الاجيال الحالية والمستقبلية و تحقيق الاهداف الانمائية.


Article
Maxillary Arch Dimensional Changes in the Extraction and Non Extraction Orthodontic Treatment

Author: Nada M Al–Sayagh
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2008 Volume: 8 Issue: 1 Pages: 26-37
Publisher: Mosul University جامعة الموصل

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Abstract

Aims:To investigate whether extraction status and gender had any significant influence on the maxillary
arch dimensions. Materials and Methods: A sample of 40 orthodontic patients (20 extraction and
20 non extraction) were included in this study. Males and females were evenly represented in both
groups. All patients were treated with fixed edgewise appliances. Dental casts were taken before and
after final orthodontic treatment, fifteen maxillary arch parameters were evaluated at pre – and post –
treatment stage and included; dental arch width at the canine, 1st premolar, 2nd premolar, 1st molar (at
mesiobuccal and distobuccal cusp tips), arch depth at canine and 1st molar, arch lengths (incisal canine
length, canine molar length and incisal molar length ), and arch perimeter. A paired sample t– test was
used to evaluate the treatment changes in the extraction and non extraction groups and also to compare
between males and females before treatment and after treatment. Results: Generally, in both genders,
most pretreatment arch dimensions were not significantly different between extraction and non extraction
groups, while after treatment the extraction treatment resulted in the reduction in the arch perimeters,
arch depth, and arch length. Where as the non extraction group showed a significant increase in
most maxillary arch dimensions. In addition both the extraction and non extraction treatment did not
cause narrowing of the dental arch at the canine region. The direction of post treatment changes were
similar in male and female subjects. However, the magnitude of the post treatment changes in some
parameters differed significantly between females and males particularly in the non extraction group.
Conclusions: the extraction and non extraction groups showed similar trend in some maxillary dimensions
and different in other dimensions, thus it was concluded that the kind of treatment may affect the
maxillary arch dimensions. In addition the non extraction group had a larger number of significant
gender differences between females and males than the extraction group


Article
The effect of mouth breathing on SNA angle and maxillary arch dimensions

Author: Nagham M. Abdulla B.D.S., M.Sc *. د. نغم عبد الله
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2005 Volume: 2 Issue: 1 Pages: 124-129
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Mouth breathing is associated with many dental and facial problems andthought of as having a bad effect on orthodontic treatment .The aim of this study was to study the effect of mouth breathing on SNA anglemaxillary incisor to SN angle and dental arch dimensions. And to compare thesevalues with those of nasal breathers. A study sample of 17 mouth breathers werecompared with 17 nasal breathers. Results showed for the mouth breather's very smallincrease in SNA angle with marked proclination of upper incisors, and constriction ofupper arch which is more in the posterior segment .


Article
The Dimensions of Globalization and Their Effect on Innovation Abilities Development for the Managers
أبعاد العولمة وأثرها في تنمية القدرات الإبداعية لدى المدراء

Author: Sundus R.khwein سندس رضيوي خوين
Journal: Journal of Al-Ma'moon College مجلة كلية المأمون ISSN: 19924453 Year: 2011 Issue: 17 Pages: 107-125
Publisher: AlMamon University College كلية المامون الجامعة

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Abstract

This research is concerned with measuring the relationship and effect of globalization dimensions (economical, political, cultural, and technological) on innovation abilities development that is crystallized in the Ministry of Higher Education and Scientific Research environment.The effects of these dimensions, if available in Ministry of Higher Education and Scientific Research environment, will contribute properly in advanced innovation abilities development.A questionnaire has been used that is distributed on (35) managers who work at the Ministry that is under investigation. Statistical methods have been used for testing the hypotheses on which the research depends such as mean, standard deviation, as well as using chi-square to recognize the relationship among variables, then multiple linear regression analysis to recognize the effect with meaning level (0.05).Finally, the research sums up a number of conclusions and recommendations.

يهتم البحث بقياس علاقة وأثر أبعاد العولمة (الاقتصادي والسياسي والثقافي والتقاني)، في تنمية القدرات الإبداعية المتبلورة في بيئة ديوان وزارة التعليم العالي والبحث العلمي.إذ تساهم آثار هذه الأبعاد، والتي اذا ما تواجدت في بيئة ديوان وزارة التعليم العالي والبحث العلمي في تنمية القدرات الإبداعية الراقية وبشكل صحيح.وقد استخدمت الاستبانة الموزعة على (35) مديراً يعملون في ديوان الوزارة ، ولغرض اختبار الفرضيات المعتمدة في البحث، استخدمت أساليب إحصائية تمثلت بالأوساط الحسابية المرجحة، والانحراف المعياري واستخدام Chi-square لمعرفة العلاقة بين المتغيرات، وأخيرا تحليل الانحدار الخطي المتعدد لمعرفة الأثر وبمستوى معنوية (0.05).وأخيراً اختتم البحث بجملة من الاستنتاجات والتوصيات.


Article
Searching in the unknown dimensions
البحث في الأبعاد المجهولة

Author: م . باحث فيزياوي
Journal: The islamic college university journal مجلة كلية الاسلامية الجامعة ISSN: 62081997 Year: 2009 Issue: 10 Pages: 289-302
Publisher: Islamic University / Najaf الجامعة الاسلامية / النجف الاشرف

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Abstract

ان الفضاء مع مجاميع المجرات المتباعدة عن بعضها بسرع هائلة ومجرتنا بدرب التبانة ومنظومتنا الشمسية والأرض وعالم الذرة والدقائق الأولية كلها عبارة عن حالات مختلفة وتعقيدات متنوعة لنفس النوع من المادة, ويوجد الكون بالمقياس الأكثر شمولية مع مجاميع المجرات وهو ذو أبعاد فسيحة حيث تقاس المسافات بملايين ملايين الكيلومترات في الثانية, لذا فأن الكون من خلال هذه النظرة يعتبر في حالة تمدد, وبالمقياس المعتدل نحن نمتلك عالم بخبرتنا الاعتيادية هو العالم الذي نحيّاهُ من خلال حواسنا ونراهُ بأعيننا المجردة ويحوي المنظومة الشمسية والأرض والحياة المنتشرة عليها, وهذه هي حالة المادة الأقرب لخبرتنا الإنسانية وهي أكثر الحالات التي ألّفناها حيث الطول يُقاس بالسنتمترات أو الكيلومترات والزمن بالثواني وغيرها...


Article
The relationship among bite force with facial dimensions and dental arches widths in a sample of Iraqi adults with Class I skeletal and dental relations

Author: Abeer B. Mahmoud
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 3 Pages: 115-120
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: This study aimed to determine whether there is a relationship among the bite force with facialdimensions and dental arches in a sample of Iraqi adults with Class I skeletal and dental relations.Materials and methods: Forty dental students (20 males and 20 females) were selected under certain criteria. Forthose individuals, dental impressions, frontal facial photographs and maximum bite force at molar and incisor regionswere taken. The dental arches widths and facial dimensions were measured using the AutoCAD program 2007, whilethe bite force was determined using special device. Descriptive statistics for the measured variables were performedand gender difference was determined using independent sample t-test, while the relation among bite force andfacial dimensions and dental arches widths was determined by Pearson’s correlation coefficient test.Results: The results indicated that bite force, facial dimensions and dental arches widths were higher in males thanfemales with a non-significant genders difference for the bite force and upper inter-canine width, while with a highsignificant genders difference for the other measurements. Pearson’s correlation coefficient revealed non-significantcorrelation among the bite force and facial dimensions and dental arches widths.Conclusion: This study proved that there was no relationship among the bite force with facial dimensions and dentalarches widths


Article
The effects of unilateral premature loss of maxillary primary molars on the dental arch dimensions

Author: Dunia A. Al-Dulayme دنيا الدليمي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 4 Pages: 95-99
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The aim of the study was to evaluate the amount of changes in the horizontal and vertical maxillaryarch dimensions measurements following the premature loss of primary molars.Materials and methods: The sample consist of (50) children with unilateral prematurely extracted either first or secondprimary molars at the mixed dentition stage.Results and Conclusions: Results shows that there was an increase in the vertical incisor to canine distance (A) withboth premature loss of first & second primary molars due to distal movement of primary canines and at the sametime there were a significant loss of space in the extraction space with premature loss of second primary molar dueto a mesial movement of maxillary first permanent molars which at the same time tip lingually and this is clearobvious from the decrease in the inter-molars distances horizontally.


Article
Mandibular dental arch dimensional changes following prematurely lost deciduous molars

Authors: Dunia A. AL-Dulayme --- Mohammad Rafid AL-Khannaq
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2014 Volume: 1 Issue: 2 Pages: 22-28
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background: The aimof the study wasto evaluate the changes in the mandibular dental arch width and lengthafter the unilateral premature loss of deciduous molars at the mixed dentition stage.Methods: The sample consist of (50) Iraqi children aged (8-9) years with unilateral prematurely extractedmandibular first or second deciduous molars, each child have a dental study models prepared by taking alginatehydrocolloid impressions,then the measurement were done on the Auto sketch program after scanning of theocclusal surface of the study casts.Results: reveals that in case of unilateral premature Loss of mandibularprimary molars at the mixed dentitionstage lead to changes in most of the vertical and horizontal distances of the dental arch.Conclusion: the findings of the present study indicate us the importance of space maintainer construction followingthe premature loss of mandibular primarymolars at the mixed dentition stage.


Article
The Impact of Marzano`s Third Dimension ‘Extending and Refining Knowledge’ on Students’ Reading Comprehension

Authors: Salah Mohammed Salih --- Hafud Ibraheem Shabeeb
Journal: Journal of Al_Anbar University for Language and Literature مجلة جامعة الانبار للغات والاداب ISSN: 20736614 Year: 2016 Issue: 22 Pages: 208-233
Publisher: University of Anbar جامعة الانبار

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Abstract

The present study aims at identifying the impact of Marzano's model of reading comprehension on fifth-grade/ High school Iraqi students; and measuring the change(s) in fifth grade students’ understanding of English language as a result of using Marzano’s model.Marzano`s model is a modern curricula in teaching because it represents an integrated framework for the organization of learning outcomes. It can be used in various grades to improve the teaching and learning process. Results showed that the level of the experimental group which was taught according to Marzano`s model of teaching did better than the control group which was taught in the traditional way. There were statistically significant differences at the achievement level, in the literal level of reading comprehension, in the inferential level of reading comprehension, and in the critical level of reading comprehension between the scores of the experimental group and the control group.

تهدف هذه الدراسة إلى التعرف على تأثير نموذج مارزانو في الفهم القرائي على الطلبةالعراقيين في الصف الخامس /العلمي. ويقيس التغيرات في فهم طلاب الصف الخامس للغة الإنجليزية نتيجة استخدام نموذج مارزانو. يعد نموذج مارزانو منهاجا حديثا في التدريس لأنه يمثل إطارا متكاملا لتنظيم مخرجات التعلم. ويمكن استخدامه في مختلف المراحل لتحسين عملية التعليم والتعلم. وأظهرت النتائج أن مستوى المجموعة التجريبية التي كانت تدرس وفقا لنموذج مارزانو للتعليم كان أفضل من مستوى المجموعة الضابطة التي كانت تدرس ضمن الطريقة التقليدية. كانت هناك فروق ذات دلالة إحصائية عند مستوى الإنجاز، وفي مستوى الحرفي للفهم القرائي، وفي مستوى القراءة الاستنتاجية ، وفي مستوى القراءة التمحيصة بين درجات المجموعة التجريبية والمجموعة الضابطة.

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