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Article
A Comparative Study of Tooth Size and Dental Arch Dimensions be-tween Iraqi Arabs and Kurds with Class I Normal Occlusion

Author: Alaa D Mahmood
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2012 Volume: 12 Issue: 23 Pages: 71-79
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To search for any differences in tooth size and dental arch dimensions between Iraqi Arabs and Kurds. Materials and Methods: Upper and lower dental casts of 40 Kurdish and 40 Arabic subjects ranging in age between 14-18 years and equally divided between males and females, were measured for mesiodistal tooth size as well as for dental arch width, length and perimeter. Results: Kurdish males and females showed larger values for mesiodistal tooth size and dental arch width, perimeter and length than their Arabic counterpart. The majority of differences were significant. Males in both Arabic and Kurdish population had greater tooth and dental arch size than females. Conclusions: Data of tooth size and dental arch dimensions for Iraqi Arabs is not applied to Iraqi Kurdish subjects.


Article
The relationship between the maxillary dental arch width, depth and circumference

Author: Khidair A SALMAN
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2001 Volume: 1 Issue: SpIss Pages: 401-410
Publisher: Mosul University جامعة الموصل

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Abstract

This study was carried out on a random sample of (50) upper stone dental caste for intermediate school student (25 males and 25 females) aged (12-15) years from different areas of Mosul city.The correlation between the dental arch width, depth and circumference was calculated. It was found that male maxillary dental arch is greater in all dimensions than the female one. There was a weak correlation between the dental arch widths and the corresponding palatal vault depths. The correlation was moderate between the maxillary arch circumference and widths except at intercanine distance width, which it showed a high correlation and it was a weak between the arch circumference and the palatal vault depths.


Article
Assessment of Bacterial Contamination of Orthodontic Arch wire

Authors: Suha Saad Hassan --- Nidhal H. Ghaib --- Batool Hassan Al-Ghurabi
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2019 Volume: 31 Issue: 1 Pages: 48-51
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The microorganisms can impend the life of health care professional and particularly the dental practitioners. They can be transmitted by different ways like airborne and droplet transmission. The current study was carried out to identify whether the arch wires that received from the manufactures are free from microbial contamination and to determine the bacterial species attached to the arch wires.Materials and Methods: This study involved eighty samples, consisted of two types of arch wires (nitinol and stainless-steel) from four companies (3M, G&H, Jiscop, OrthoTechnology). These wires inserted in a plane tube that contains 10 -ml of (Tris [tris(hydroxymethyl)aminomethane] and EDTA (ethylenediaminetetraacetic acid) tris-EDTA and brain heart infusion (BHI) broth. A 0.1 ml was withdrawn from the tube and spread on agar plates. The control groups consist of 16 plane tube (8 tubes with tris-EDTA and other 8 tubes with (BHI).Results: Microbial sampling yielded growth from 5 of the 80 arch wires. The predominant bacteria that isolated were Bacillus spp. No growth was recovered from 75 of the samples and from controls. The bacteria were isolated by BHI reagent and no growth was observed by tris-EDTA reagent with statistically significant difference (P<0.05). The Bacillus spp. found only in the G&H and Jiscop companies, however, no statistically significant difference was found among them (P>0.05). With regard to the presence and distribution of bacteria according to the types of wires, the present results clarified that cases of contamination with Bacillus spp. were found in the nitinol arch wires with statistically significant difference (P<0.05).Conclusions: The results of the current study revealed low count of bacterial contamination in the two types of companies (G&H and Jiscop). Not all materials that received from the manufactures are free from contamination and an effective sterilization regimen is needed to avoid cross-contamination.

Keywords

Arch wires --- contamination --- Bacilli


Article
The effect of nutritional status on arch width and length of primary teeth among five years old kindergarten children

Authors: Zaid Saadi Hasan Ahmed زيد سعدي حسن احمد --- Ban Sahib Diab بان صاحب ذياب
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2015 Volume: 27 Issue: 2 Pages: 173-177
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: In human life, malnutrition may adversely affect various aspects of growth at different stages of life. Teethare particularly sensitive to malnutrition. Malnutrition may affect odontometeric measurement involving arch width andlength of primary dentition. The aim of this study is to estimate the effect of nutrition on arch width and length dimensionmeasurements among children aged 5 years old.Material and methods: This study was conducted among malnourished group in comparison to well-nourished groupmatching with age and gender. The present study included 158 children aged 5 years (78 malnourished and 80 wellnourished).The assessment of nutritional status was done by using three nutritional indicators, namely Height-for-age,Weight-for-age and Weight-for-height. Odontometeric measurements including two different orientations. For bothupper and lower study models, photographs were taken using special photographic apparatus for each child, and thedata were then analyzed using special computer software. For primary dentitions, two linear measurements (intercaninedistance and inter-molar distance) were utilized, representing arch measurements.Results: As for primary dentitions, all means value of maxillary and mandible arch width and length were lower amongmalnourished group than well-nourished group with statistically highly significant except for both inter-canine distance ofmaxillary and mandibular, maxillary anterior arch length and mandibular molar vertical length.Conclusion: Malnutrition effect on minimize the odontometric measurements (dental arch width, dental arch length)among children aged 5 years


Article
Comparison of Two Different Intrusion Techniques (An in Vitro Study)

Authors: Khidair A Salman --- Saif S Al-Soufy
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2013 Volume: 13 Issue: 27 Pages: 442-449
Publisher: Mosul University جامعة الموصل

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Abstract

This study was aimed to compare the effects of two different techniques on the position of maxillary incisors during the intrusive movement. Materials and Methods: The sample consisted of two groups, the utility intrusion arch and continuous intrusion arch groups. Upper typodont arch of class II division I was used and the arches were activated to deliver 60 gram of force. Pre and postoperative digital images were taken and analyzed using Autodesk AutoCAD software™. For each group six parameters were measured and compared. A significance value of 0.05 was predetermined. Results: Significant difference was found in vertical change of estimated midpoint of root position, axial inclination, anteroposterior position of incisal edge, relative contribution of torque and protrusion to the change in inclination and insignificant difference in vertical change of incisal edge position. Conclusions: Maxillary incisors intrusion with a minimal protrusion could be achieved with the continuous intrusion arch technique


Article
A method of Craniofacial suspension of the fractured middle third of facial skeleton through a cranial arch bar
طريقة التعليق الوجهي القحفي لتثبيت كسور الثلث الوسطي لهيكل عظام الوجه بواسطة الطوق القحفي

Author: Dr.Ghalib Abid Humaidi د. غالب عبد حميدي
Journal: Thi-Qar Medical Journal مجلة ذي قار الطبية ISSN: 19929218 Year: 2010 Volume: 4 Issue: 3 Pages: 86-99
Publisher: Thi-Qar University جامعة ذي قار

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Abstract

ABSTRACT : Fractures of the middle third of the facial skeleton which associated with the fractured zygomatic process of the frontal bone and or fractured zygomatic arch are happened . And in these cases it was difficult to use frontal or zygomatic suspension for fixation . A technique is described which enables the majority of these fractures to be fixed by maxillary or mandibular suspension to the cranial arch bar implanted inside a plaster of Paris head cap . The plaster head cap can be done in the clinic or in the ward and the only thing you need to do in the theater is reduction and suspension . The benefits of the patient and the hospital are highlighted .

ألخلاصه :كسور الثلث الوسطي لهيكل عظام الوجه التي يكون فيها أيضا كسر عظم الجبهة أو العظم الوجني او كليهما تحدث أحيانا . وفي هذه الحالات تكون عملية تثبيت كسور الأنواع الثلاثة واحد و اثنان وثلاثة لعظام الثلث الوسطي للوجه غير ممكنه عن طريق التعليق الداخلي والذي يعتمد على عظم الجبهة والعظم الوجني . وبالطريقة التي استخدمتها والتي سيتم إيضاحها تمكنت من تثبيت عدد كبير من هذا النوع من الكسور وبنجاح . وقد سميت بطريقة استعمال الطوق القحفي حيث من خلاله تعلق كسور عظام الثلث الوسطي لهيكل عظام الوجه بدون ألحاجه إلى عظم الجبهة او العظم الوجني . وفي هذه ألطريقه يتم زرع طوق من( الأرج بار) والمستعمل في تثبيت كسور الفكين في داخل جبيرة مثبته على فروه الرأس . ومن خلاله تعلق كسور الثلث الوسطي لهيكل عظام الوجه . حيث يمكن عمل هذه الجبيرة داخل الردهة أو في العيادة وهذا مما يقلل من الوقت داخل صالة العمليات . بما في ذلك من منفعه كبيره الى المريض والمستشفى معا


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
Assessment of dental arches symmetry in a sample of Iraqi children at the mixed dentition stage

Author: Dunia Ahmed Al- Dulayme دنيا احمد الدليمي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 2 Pages: 138-143
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Little is known about asymmetry of children's dental arches, the purpose of this study was to verify thepresence of asymmetry of dental arches among Iraqi children in the mixed dentition stage.Materials and methods: The sample included 52 pairs of dental casts, 27 pairs belong to males and 25 pairs forfemales. Three linear distances were utilized on each side on the dental arch: Incisal-canine distance, canine-molardistance and incisal-molar distance, which represent the dental arch segmental measurements using the digitalsliding calipers, which is accurate up to 0.02 mm.Results: No significant sides' differences with high correlation coefficient were found between the right and leftincisal-canine, canine-molar and incisal-molar distances in both dental arches for both genders with males exhibitedhigher mean values than females in all segmental measurements of the dental arches.Conclusion: The findings of the present study revealed the symmetrical pattern of dental arches, since statistically theright and left sides showed no significant difference with high correlation coefficient in all measuring segments


Article
Comparison between Force Deflection Values of Different Types of Orthodontic Arch Wires

Authors: Khudair A Al–Jumaili --- Enas T Al–Jwary
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2007 Volume: 7 Issue: SpIss Pages: S58-S63
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To evaluate the force values of different types of arch wires. Materials and Methods: Five types of arch wires used. The sample consisted of 150 wires specimens divided into three deflections (1 mm, 2mm and 3 mm). A universal tensile testing machine with the use of special designed fixture was used to perform Three Point Bending Test and the force value related to gram (gm) was measured during loading (activation) of the wire to 1 mm, 2 mm or 3 mm deflections. Results: The results of this investigation showed a significant difference (P≤ 0.05) in force values among all arch wires. Conclusions: The conclusions of this study showed that the solid stainless steel wires provided a heavy force, while the multistranded gave rise to the lowest force value.


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: 15 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

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