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Article
Clinical measurements of the dimensions of the dental arches and its application on construction of dental prosthesis

Author: Zeina M Ahmed
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2006 Volume: 6 Issue: 7 Pages: 88-97
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To determine the ideal dimensions of the artificial dental arch by measuring the dimensions of dental arch of completely dentulous subjects and to find the relation of these dimensions to some facialmeasurements. Materials and Methods: The sample of study consisted of 54 completely dentulous adult subjects (24 females and 30 males) with Class 1 normal occlusion aged 19–24 years. Dental casts were taken for each subject and the dimensions of the dental casts and the facial measurements were made by using digital vernier caliper. The data were analyzed with Statistical Package for Social Science program. Results: The dimensions of the dental arches and the facial measurements of themale group was larger than that of female and there was high correlation between some dimensions of dental arch with some of the facial measurements. Conclusions: The width of the dental arches of theartificial dental prosthesis could be determined depending on the extraoral facial measurements as the percentage of upper intercanine distance to mouth width is 74.43% and the percentage of the upperinter first molar distance to bizygomatic width was 40.65%


Article
The validity of mucolabial reflection in determining occlusal vertical relation

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Abstract

Background: Different methods are being used in prosthodontics for determiningocclusal vertical dimension. In this study the mucolabial reflection was used as aguide to measure the vertical distance of the maxillary and mandibular centralincisors to the vestibules.Materials and Methods: A total sample of 45 subjects was studied that include (25female and 20 male). Impression of the maxillary and mandibular arch was madewith perforated tray using alginate impression material. Stone casts were madeand the distance from the center of the incisal edge for maxillary and mandibularcentral incisors to the depth of the mucolabial reflection was measured. Also thedistance from the depth of the maxillary to mandibular reflection with cast incentric occlusion was measured. The measurements were recorded by the use of adivider and boley gauge to the nearest 0.1 mm.Results: The mean distance from the incisal edge of maxillary central incisors to themucolabial reflection was 21.1 mm for females and 21.8 mm for males while themean distance from the mandibular central incisors to the mucolabial reflectionwas 16.6 mm for females and 16.9 mm for males. Also the mean distance from thedepth of the maxillary to the Mandibular mucolabial reflections was 34.9 mm forfemales and 35.3 mm for males. No statistical significant differences were foundbetween male and female measurements.Conclusion: The mucolabial reflection provides a good starting point for establishinga tentative occlusal vertical dimension. Also could help for a preliminaryarrangement of teeth.


Article
TWO-WAY MULTIVARIATE REPEATED MEASUREMENTS ANALYSIS OF VARIANCE MODE
نموذج تحليل التباين ذي الطرفين للقياسات المتكررة المتعدد المتغيرات

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Abstract

The two-way multivariate repeated measurements analysis of variance (2-way MRM ANOVA) model for complete data is studied by considering the case of multivariate response variables. The test statistics of various hypotheses on between-units factors, within-units factors and the interaction between them are given.

تمت دراسة نموذج تحليل التباين ذي الطرفين للقياسات المتكررة المتعدد المتغيرات للبيانات الكاملة فـي حـالـة مـتـغـيـرات الاستجابة الـمـتـعـددة الـمـتـغـيـرات. لـقـد أعـطـيـت الاخـتـبـارات الإحصائية لـمـخـتـلـف الـفـرضـيـات الـمـتـعـلـقـة بـالـعـوامـل بـيـن الـوحـدات و الـعـوامـل داخـل الـوحـدات و الـتـفـاعـل بـيـنـهـمـا.


Article
The profile of the for a long jump players According to the level
شبكة الشكل الجانبي للقياسات الجسمية للاعبي الوثب الطويل على وفق التأثير في مستوى الإنجاز

Author: Thelam Younis Allawi ثيـلام يونـس عـلاوي
Journal: Al-Rafidain Journal For Sport Sciences مجلة الرافدين للعلوم الرياضية ISSN: 19939345 Year: 2006 Volume: 12 Issue: 40 Pages: 217-239
Publisher: Mosul University جامعة الموصل

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Abstract

The research aims:- To determine the importance of anthropometric measurements which include (length, circumferences, breadths, and skin fold) which affect the performance of long jump players.- Setting equations to predict the component of anthropometric measurements in long jump .- Constricting the profile range on the a bases through best linier models sharing the anthropometric measurements elements in performance. - Determine the anthropometric measurements profile of high and low level players in accordance to the level of performance.The research sample included (15) long jump players represent Iraqi clubs. while data collection representing (19) measurement, in additional to the measurement of performance level. The result of the research reveals number of significant equations for the long jump performance. as well as constructing the profile on the share of anthropometric measurements of performance and its significant. The researcher recommend to repeat the profiles which was billed formerly for different cams.

هدف البحث الى:- تحديد أهمية مكونات القياسات الجسمية من أطوال ومحيطات وأعراض وسمك الثنايا الجلدية المؤثرة في الإنجاز بالوثب الطويل.- وضع معادلات للتنبؤ لمكونات القياسات الجسمية في الإنجاز بالوثب الطويل.- بناء مديات الشكل الجانبي على أساس أفضل نماذج خطية لمساهمة مكونات القياسات الجسمية في الإنجاز.- تحديد شبكة الشكل الجانبي للقياسات الجسمية للمتفوقين وغير المتفوقين على وفق التأثير في مستوى الإنجاز.وتكونت العينة من (15) لاعبا يمثلون الأندية العراقية ، فيما مثلت متغيرات البحث (19) قياسا جسميا بالإضافة الى مستوى الإنجاز.أما نتائج البحث فقد أظهرت عدد من معادلات التنبؤ بالإنجاز في الوثب الطويل ذات القيم المعنوية والمساهمة العالية،فضلا عن بناء شبكة الشكل الجانبي وفق أسس تعتمد على مدى مساهمة القياسات الجسمية في الإنجاز ومعنويتها،وقد أوصى الباحث بإعادة النظر في شبكات الشكل الجانبي التي أعدت سابقاً ولمختلف الألعاب.

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