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Article
The prevalence of root resorption in radiographically examined teeth

Authors: Nazar GH JAMEEL --- Zaydoon M KASIM
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2001 Volume: 1 Issue: 2 Pages: 148-152
Publisher: Mosul University جامعة الموصل

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Abstract

The aim of this study is to determine the prevalence of root resorption in radiographically examined teeth, (256) patients admitted for routine intraoral examination were included in the study. (16%) of the patients show root resorption in one or more teeth, and (5.64%) of all the examined teeth show evidence of external root resorption. The periapicalinflammation was the main cause of external root resorption, Two cases of internal root resorption were found in this study.

Keywords

External --- internal --- root resorption


Article
The Effect of local injection of strontium on inhibition and repair of orthodontically induced root resorption in rats (An experimental study)

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Abstract

Background: Strontium (Sr) is an alkaline earth trace metal cation that has a highaffinity for hydroxyapatite. This study aimed to examine the histological effect oflocally injected strontium (Sr) on prevention and repair of induced root resorptionof rat molar subjected to orthodontic tooth movement.Materials and Methods: Eighteen ten-week- old male Wister rats were randomlydivided into two groups of nine animals for two experiments. In both experiments;uniform standardized expansive springs were used to move maxillary first molarsbuccally for three weeks and then removed. In experiment No.1, at the time ofspring placement, 0.25 ml of the strontium chloride solution at a concentration 240mg/ml was injected at the sub-periosteum of the buccal side of the maxillary leftfirst molar which was the experimental side. On other hand, 0.25 ml of distilledwater was injected at the sub-periosteum of the buccal side of the right maxillaryfirst molar which was the control side. The injections repeated every other day forthree weeks whereas in experiment 2 it was begun at the day of spring removal andrepeated every other day for another three weeks. After that the animals werescarified humanly and biopsies were taken for histological examination.Results: In experiment 1 the side injected with strontium showed statisticallysignificant lesser root resorption than control side, while in experiment two thestrontium injected side showed significantly more repair.Conclusion: Results of the study suggested that local injection of strontium caninhibit root resorption process and enhance repair.


Article
Diagnosis and localization of the maxillary impacted canines by using dental multi-slice computed tomography 3D view and reconstructed panoramic 2D view

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Abstract

Background: Diagnosis and treatment planning can be difficult with conventional radiographic methods as the or-thodontic-surgical management of impacted canines requires accurate diagnosis and precise localization of the impacted canine and the surrounding structures. This study was aimed to localize and evaluate weather there is any differences in the diagnostic information provided by multi-slice computed tomography three dimensional volumet-ric CT images and two dimensional reconstructed panorama images (derived from CT) in subjects with impacted maxillary canines.Materials and Methods: Thirty patients including 24 female and 6 male with mean age of 18 years with suspected unilaterally or bilaterally impacted maxillary canines were evaluated on images taken with Brilliance™ 64, Philips mul-ti-detector computed tomography. The spatial relationships of the impacted maxillary canines relative to the adja-cent structures was evaluated using linear and angular measurements, and the adjacent lateral incisor root resorp-tion was assessed with three dimensional and two dimensional visualization software.Results: The inclination of the impacted maxillary canine measured to the midline and to the occlusal plane did not differ significantly when it was evaluated using the two imaging modalities. However, there were significant differ-ences between the 3D and 2D images with respect to the impacted maxillary canine vertical height, bucco-palatal localization, and in detecting the proximity and root resorption of the adjacent lateral incisors.Conclusion: Dental CT volumetric images provide more reliable and accurate information for diagnosing the maxil-lary impacted canine position, inclination, distance from adjacent structures, and detection of lateral incisors rootre-sorption.


Article
The correlation between root resorption and some immune parameters in well- controlled type Ι diabetic patients during orthodontic treatment

Author: Ayam Alihassoon Taha ايمن علي حسون
Journal: Tikrit Journal for Dental Sciences مجلة تكريت لعلوم طب الاسنان ISSN: 20731213 Year: 2015 Volume: 3 Issue: 1 Pages: 95-104
Publisher: Tikrit University جامعة تكريت

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Abstract

Background:Type 1 diabetes mellitus is the result of a breakdown in immune regulation that leads to expansion of auto reactive CD4and CD8T- cells, autoantibody-producing B lymphocytes and activation of the innate immune system, so disturbances of immune system may be the cause and/or associated with diabetes mellitus. Some of these diabetic patients seek an orthodontic care. The orthodontist must remain vigilant as they may be the only health care professional seen by otherwise fit, young patients on a regular basis, and it is also important to implement risk control procedures during and after orthodontic treatment.Aims: The aim of this study was to analyze serum levels of immunoglobulins ( IgG, IgA , and IgM) ,and complement components (C3, and C4) after 6 months (T6) of orthodontic treatment in well-controlled type Ι diabetic patients wearing orthodontic appliance comparing with non-wearing group and to correlate these immune parameters with grade of root resorption which sometimes happen during orthodontic treatment .Materials and methods: Sixty well- controlled type Ι diabetic patients (HbA1c <8.5), were participating in this study. Thirty cases of them(16 male and 14 females) were wearing fixed orthodontic appliance, and the other thirty cases didn’t wear orthodontic appliances and considered as the controls (12 male and 18 females).The mean age of study groups was(15± 1SD) years. Periapical radiographs of the upper central incisors were obtained of all patients before(T0) and 6 months after(T6) orthodontic treatment. At (T6), root resorption was classified as grade 0 (no resorption) ,grade 1 (slight resorption), and grade 2 (moderate to severe resorption). Serum level of IgG , IgA, IgM ,C3, and C4 were analyzed after 6 months orthodontic treatment were determined using single radial immunodiffusion method (SRID) to the two study groups. Chi square test and T- test were used to assess the association between qualitative and quantitative results respectively ,while paired t- test was used to analyze the results after 6 months (T6) orthodontic treatment, differences were considered significant at P<0.05.


Article
Apical root resorption of maxillary anterior teeth after orthodontic treatment of Class II division 1 occlusion with Roth appliance

Author: Saad S Gasgoos
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2004 Volume: 4 Issue: 2 Pages: 166-172
Publisher: Mosul University جامعة الموصل

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Abstract

The aims of this study were to evaluate the effect of orthodontic treatment on root length (ratios of root length after / before treatment) of the upper anterior teeth after correction of Class II division 1 incisal relation, to evaluate the time of treatment and its effect on root resorption and to show if there is any risk of root resorption in relation to sex. The sample was composed of 25 patients (15 females and 10 males) 15–25 years old age. All patients were treated with 22×30 slot brackets fixed stainless steel Roth system appliances after extraction of bilateral maxillary first premolars. The canines were retracted individually along the base arch wire with power chain elastics that were changed every 1 week, then the four upper incisors were retracted with vertical loops. The results of periapical radiograph measurements before and after treatment indicated that there were a noticeable apical root resorption with blunted irregular apex after the completion of orthodontic treatment. The incisor roots were affected more than the canines. In addition, there were no gender differences in root resorption between males and females (except upper left lateral incisor). The mean treatment time from beginning to end of treatment and obtaining Class I incisal relation was 21.4 months.


Article
Root resorption and anti-dentine antibody level in serum and saliva of well-controlled type Ι diabetic patients undergoing orthodontic treatment

Authors: Ayam A. H. Taha --- Esra H. Al- Hashemy
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 3 Pages: 134-141
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Diabetic mellitus type Ι is a metabolic disorder of diverse etiological factors, characterized byhyperglycemia resulting from an absolute deficiency of insulin affected childhood and adolescent. Some of thesepatients seek an orthodontic care .The orthodontist who is treating these medically compromised patients shouldhave a working knowledge of the multitude of medically complex problems. This information will support and enablefor delivery of high standards of dental care in general and orthodontic care in particular. The aim of this study wasto analyze serum IgG levels and salivary secretory IgA (sIgA) levels in human dentine extract (HDE) before (T0) and 6months after (T6) orthodontic treatment and to correlate anti-HDE autoantibodies to root resorption in well-controlledtype Ι diabetic patients.Materials and methods: Sixty individuals, who were attending to Al-Mustansiriya National Diabetes Center from Aprilto October, 2012 and classified as well- controlled type Ι diabetic patients (HbA1c <8.5), were participating in thisstudy .The mean age of the whole samples was (15±1 SD ) years, thirty three of them(18 males and 15 females) werenot wearing orthodontic appliance and were selected as the controls, while twenty seven of them (12 males and 15females) were wearing orthodontic appliance . Periapical radiographs of the upper central incisors , unstimulatedsaliva and serum samples were obtained of all patients before(T0) and 6 months after(T6) orthodontic treatment.Anti-dentine antibody (Ab) levels were determined by mean of enzyme linked immune sorbant assay (ELISA)technique. At T6, root resorption was classified as grade 0 (no resorption), grade 1 (slight resorption), and grade 2(moderate to severe resorption). Chi square test and T- test were used to assess the association between qualitativeand quantitative results respectively ,while paired t- test was used to analyze the results before(T0) and 6 monthsafter(T6) orthodontic treatment. Differences were considered significant at P<0.05.Results: There was statistical significant difference in the level of (anti- dentine Ab) in saliva between the two studygroups at T0 and T6, its level was higher in the wearing group comparing with non wearing group, while it didn’t differin serum. In the wearing group, the level of anti -dentine antibody in serum and saliva significantly decreased at T6comparing with its level at T0. High level of the (anti -dentin Ab) shown in serum and saliva in grade 1 root resorption(R1) comparing with grade 0 root resorption (R0) at T0 and also at T6.Conclusions: The results of this study indicate that the anti -dentin antibody plays an important role in the detectionof root resorption during orthodontic treatment in well- controlled diabetic patients type Ι and its level is differentaccording to the grade of root resorption in both saliva and serum


Article
External Apical Root Resorption after Orthodontic Treatment in Ramadi City
تأكل قمة الجذر الخارجية بعد المعالجة التقويمية في مدينة الرمادي

Author: Zena Hekmat AL-Taee زينة حكمت بشير
Journal: Al- Anbar Medical Journal مجلة الأنبار الطبية ISSN: PISSN: 27066207 / EISSN: 26643154 Year: 2016 Volume: 13 Issue: 1 Pages: 20-28
Publisher: University of Anbar جامعة الانبار

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Abstract

Background:- External Apical Root resorption is one of the most common and undesirable sequel of orthodontic treatment .Objective:-The purpose of the present study was to research and identify factors related to root resorption during orthodontic treatment in Ramadi city. Patients and Methods: This study consisted of 172 patients who had completed orthodontic treatments and taken the pre- and post-treatment panoramic radiographs. The length of tooth was measured. A NOVA and t test was performed to compare the mean amount of root resorption between right and left side, male and female, between extraction and non-extraction cases, open bite ,deep bite and normal bite and class I ,class II &class III. The correlation coefficients were measured between the amount of root resorption and the beginning age of the orthodontic treatment, and the duration of treatment.Results: In this study the maxillary central incisors were the most resorbed teeth, there is no significant different between male and female, left and right side. There was a significant different between extraction and non-extraction therapy, open bite, normal bite and deep bite and class I,II and III treatment. this study showed that treatment duration and the age of the patient was not related to the degree of resorption . Conclusion :-The radiographic follow up for the assessment of root resorption of all patients undergoing orthodontic therapy .These findings show that orthodontic treatment should be carefully performed to the tooth, moved a greater distances during treatment.

الخلفية : تأكل الجذر واحد من أكثر الحالات شيوعاً وغير مرغوب فيها في علاج تقويم الأسنان. الغرض من هذه الدراسة هو تحديد العوامل المتصلة بتأكل الجذر أثناء المعالجة التقويمية في مدينة الرمادي. المواد والطرق: هذه الدراسة تألفت من 172 من المرضى الذين قد أكملوا علاج تقويم الأسنان و تم أخذ الصور الشعاعية البانورامية ما قبل وما بعد المعالجة. وتم قياس طول الأسنان. وأجرى اختبار t لمقارنة متوسط مقدار تأكل الجذر بين الجانب الأيمن والأيسر، بين الذكور والإناث، وبين حالات القلع وحالات عدم القلع، ومقارنة ما بين العضة المفتوحة والطبيعية وعضه عميقة ومقارنة ما بين اطباق صنف أول وثاني وثالث. ثم قياس معاملات الارتباط بين كمية تأكل الجذر والعمر ، ومدة العلاج النتائج :في هذه الدراسة. كانت القواطع الأمامية في الفك العلوي الأكثر تأكلا، ولا توجد فروقات معنوية بين الذكور والإناث والجانب الأيمن والأيسر . وكان هناك فروق معنوية بين حالات القلع وحالات عدم القلع. وحالات العضة المفتوحة، والعضة الاعتيادية والعضة العميقة .وبين اطباق صنف أول وثاني وثالث وتبين هذه الدراسة أن مدة العلاج وعمر المريض لا ترتبط بدرجة التأكل. الاستنتاج: أهمية المتابعة الشعاعية المتكررة لتقييم تأكل الجذر لجميع المرضى الذين يخضعون للعلاج بجهاز تقويم الأسنان. وتبين هذه النتائج أنه يجب العناية أكثر بالأسنان التي تحركت لمسافات كبيره أثناء فترة العلاج


Article
Association Between Maxillary Impacted Canine Position and Root Resorption of the Adjacent Incisors: A CT Study
العلاقة بين موقع الناب العلوي المطمور و نخر جذور القواطع العلوية الدائمية المجاورة - دراسة بأستخدام التصوير المقطعي

Author: Nadia Bassim Al-Ansari نادية باسم الانصاري
Journal: Al-Rafidain University College For Sciences مجلة كلية الرافدين الجامعة للعلوم ISSN: 16816870 Year: 2016 Issue: 38 Pages: 16-32
Publisher: Rafidain University College كلية الرافدين الجامعة

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Abstract

Resorption of permanent maxillary incisors is a common complication of ectopically positioned maxillary canines and when they occur they may drastically increasing both the cost and complexity of the orthodontic treatment, thus early diagnosis and corrective measures are imperative. This study aimed to investigate the association between the maxillary impacted canines labio-palatal and mesio-distal positions and the associated root resorption of adjacent maxillary incisors. Materials and Methods: The sample included 46 patients with an age ranged between 12 and 30 years referred to the CT scan image to detect unilaterally or bilaterally impacted maxillary canines. The mesio-distal position of the canine cusp tip, the labio-palatal position of the impacted canines, contact and root resorption of permanent incisors were evaluated with CT scan image. The association between the impacted canines position and root resorption of permanent incisors were analyzed using Chi square test.Results: Labially and mid-alveolus impacted canines were more common in sectors I and IV, while palatally impacted canines were most frequent in Sector IV. Lateral incisors were more often affected than central incisors by root resorption. Root resorption of permanent incisors showed a high significant association with sector location [p ≤ 0.001] and was observed in sectors III and IV.Conclusions: When canine impactions are suspected in sectors III or IV, CT scan must be considered to disclose suspected incisor resorption.

ان نخر جذور القواطع العلوية الدائمية المجاورة للانياب الدائمية المطمورة هو احد المضاعفات الشائعة المصاحبة لوجود الانياب في غير مكانها الصحيح وخصوصا في الحالات المصاحبة لاحتباس أنياب الفك العلوي, وعندما يحدث النخر اوالتاكل في الجذور فأنه قد يزيد بشكل كبير كلا من تكلفة وتعقيد العلاج التقويمي لحالات الانياب المطمورة، وبالتالي التشخيص المبكر والتدابير التصحيحية أمران لا غنى عنهما. تهدف هذه الدراسة إلى التعرف على العلاقة بين مكان وجود الانياب المطمورة في عظم الفك العلوي وما قد يصاحبها بها من تاكل الجذورللقواطع العلوية المجاورة وذلك باستخدام الاشعة المقطعية ثلاثية الابعاد بواسطة جهاز المفراس الحلزوني.لقد تمت في هذه الدراسة فحص وتشخيص ستة واربعون مريضا تم تحويلهم الى مستشفى الكرخ العام في بغداد و باعمار تراوحت بين (12-30) سنة وبعد اجراء الاشعة المقطعية للمرضى تم دراسة كل حالة على حدة وتشخيص مكان الناب المطمورالامامي والخلفي بالاضافة الى مكانه الافقي نسبة الى القواطع المجاورة ومن ثم دراسة العلاقة بين موقع الانياب الامامية والخلفية ووجود النخر وايضا موقع الناب الافقي ووجود النخر, وكذلك تمت دراسة علاقة تماس الانياب المطمورة ووجود النخر في جذور الاسنان المجاورة.اظهر البحث وجود علاقة احصائية ذات اهمية بين مكان وجود الناب الافقي وبين حدوث النخر في جذور القواطع المجاورة, علما ان القواطع الامامية الجانبية كانت اكثر تاثرا بنخر الجذور من القواطع الامامية الوسطية,كما لوحظ وجود علاقة ذات اهمية احصائية بين تماس الانياب بالاسنان المجاورة ووجود النخر في جذورها. ولم يتبين وفقا لنتائج هذه الدراسة وجود علاقة ذات دلالة احصائية بين مكان الناب المطمور الامامي والخلفي ووجود النخر في جذور القواطع المجاورة.ان الاشعة المقطعية الحلزونية ثلاثية الابعاد تعد واحدة من افضل اجهزة الاشعة التشخصية حيث انها توفر معلومات ذات قيمة ودقة تشخصية عالية مما يساعد على تشخيص افضل ورسم خطط علاجية جراحية وتقويمية افضل لحالات احتباس الانياب العلوية الدائمية وما يصاحبها من مضاعفات.

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