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Article
The Effect Of Treatment Protocol and Implant Dimensions on Primary Stability Utilizing Resonance Frequency Analysis

Author: Thair Abdul Lateef ثائر عبد اللطيف
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 1 Pages: 111-116
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: According to Branemark’s protocol, the waiting period between tooth extraction and implant placement is 6–8 months; this is the late placement technique. Achieving and maintaining implant stability are prerequisites for a dental implant to be successful. Resonance Frequency Analysis (RFA) is a noninvasive diagnostic method that measures implant stability. The aim of this study was to investigate the influence of treatment protocol and implant dimensions on primary implant stability utilizing RFA.Materials and methods: This study included 63 Iraqi patients (37 male, 26 female; ranging 22-66 years). According to treatment protocol, the sample was divided into 2 groups; A (delayed) & B (immediate). Dental implants were inserted and the implant stability quotient (ISQ) measures for primary stability documented by Osstell device.Results: For both groups fixtures introduced in the mandible showed a higher stability (74 and 71.85) respectively and was lower in maxilla. The mean primary stability of group A was 70.21 (ranged from 51-83), while for group B was 68.55 (46.5-81).Conclusion: primary stability influencing osseointegration and subsequent long term success. It was higher in association with delayed implant placement, mandible, and increased implant diameters


Article
The Effect of Green Tea Polyphenol (EGCG) on Orthodontic Micro-Implant Stability: An experimental study

Authors: Mustafa Muath Hamed Al-Sultan --- Zaid Salim Twafeeq
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2017 Volume: 4 Issue: 2 Pages: 102-109
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background Increasing the orthodontic micro-implant stability and enhancing bone response around it, is a fundamental objective of successful therapy. Materials and Methods Thirty orthodontic micro-implants, 1.3 mm in width and 5 mm in length (Dentos, AbsoAnchor, South Korea), were used with three implants were inserted in the right tibias of ten New Zealand rabbits, the rabbits categories into two groups, fve each. The primary stability was measured once the implant inserted, using Periotest. The experimental group fed (0.5% wt/vol/day) Green Tea, using the loading technique, for four weeks interval. At the end of the experimental period, the rabbits were sacrifced, and the secondary stability measurement was taken. Results Using paired t-test, the results showed a signifcant increase in secondary stability for the experimental group after four weeks experimental period when compared with the primary one. While the control group showed a non-signifcant increase in the secondary stability compared with the primary one. Conclusion This study concluded that the Green Tea could enhance bone response around orthodontic micro-implant within four weeks healing period and consequently increase the stability of orthodontic micro-implant

Keywords

Green Tea --- Micro-Implant --- Stability


Article
Intentional penetration of dental implants into the maxillary sinus: a retrospective study
الاختراق المتعمد لزراعة الأسنان في الجيب الفكي العلوي: دراسة بأثر رجعي

Author: Omed Ikram Shihab
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 1 Pages: 1536-1539
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Perforation of the maxillary sinus by a dental implant isan issue of concern by many dental implant clinicians. This study aimed to assess thesuccess rate and consequences of dental implants emerging into the maxillary sinus.Methods: The maxillary sinus was intentionally perforated for dental implant placementin 35 patients with reduced posterior maxillary bone height (4 mm or more). A total of 70implants engaged bicortically and emerged into the sinus. Nineteen female and 16 malepatients were involved in the study. The patients were followed up for sinus complicationsand dental implant success.Results: From the total, only two implants were failed; one during gingival formerplacement and the other after loading by one year. No patient presented with sinusitisclinically and radiographically. Three patients developed epistaxis just on the day ofsurgery and became well after on.Conclusion: Within the limits of this study, dental implant emergence into healthymaxillary sinus is considered a safe and successful procedure.


Article
Osseointegration of dental implants without primary stability: an experimental study in sheep
Osseointegration من زراعة الأسنان دون الاستقرار الأولي: دراسة تجريبية في الأغنام

Authors: Ahmed A. Haider --- Othman A. Omer --- Hozak Zahir Ali --- Abduljaleel Azad Samad --- et al.
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 1 Pages: 1616-1618
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Primary implant stability is considered necessary forachieving and maintaining osseointegration. This experimental study aimed to evaluate theoutcome of implants without primary stability, clinically and radiographically.Methods: Two adult sheep (3-4 years of age), 70 kg in weight, were included in the study.After sedation and local anesthesia, the lateral side of the basal bone of mandible isexposed by a single long incision. The implant bed performed in the inferior border of thebasal bone of mandible drilling to 5 mm in diameter and 10 mm in length. Five implantswere inserted into the basal bone of mandible for each side (right and left), but the sizes ofinserted implant was 3.8 mm in diameter and 10 mm in length, after 4 months the 2 sheepwere sacrificed and the universal torque ratchet was used to measure the stability of theimplant by a counter torque 30 N/cm test. Cone Beam Tomography (CBCT) was used toevaluate the implants radiographically.Results: Nineteen (from 20) implants successfully tolerated a 30 N/cm countertorque testcomprising (95%). Only one implant failed to osseointegrate (5%). During the healingperiod, no any adverse clinical signs reported.Conclusion: Dental implants may have a chance to osseointegrate even in the lack ofprimary stability.


Article
Evaluation of Osseointegration of Dental Implants Prepared by Piezosurgery (Clinical Study)

Authors: Younus Jabbar Jiheel يونس جبار جحيل --- Jamal Abid mohammed جمال عبد محمد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 1 Pages: 96-103
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Piezosurgery device is a system developed recently to overcome the limitation of the traditional surgical technique in implant site preparation, which use the principle of ultrasonic microvibrations to create precise & selective cut in bone in harmony with the surrounding tissues. The aim of this study was to evaluate the outcomes of implants inserted by ultrasonic implant site preparation protocol (UISP) using piezosurgery device, regarding the survival rate, stability and other related factors, at 16 weeks postoperative follow up period.Materials and Methods: A total of (24) patients, (6) males and (18) females, aged between (19-51) years old, contributed in this study receiving a total of (42) implants, all of these implants bed were prepared by means of special tips mounted in piezosurgery device. For each patient thorough clinical and radiographical preoperative assessment was applied. Implant stability quotient (ISQ) values were measured at baseline, 8 weeks and at 16 weeks. Postoperative clinical and radiographic evaluation was applied for each patient for 16 weeks postoperatively.Results: (24) patients received (42) implants accomplished the follow-up period, After 16 weeks all implants (42) were osseointegrated and the overall implants survival rate was 100% with no failure and no complication was observed. The mean ISQ value at baseline was (74.32±6.42), the mean ISQ value at 8 weeks was (72.62±9.05) and at 16 weeks the mean ISQ (±SD) value was (76.68±7.35) the changes in the mean stability during the healing period showed significant increase in the implant stability (P≤0.05). At the 16th week the number of implants that achieved ISQ≥70 was 35 (83.3%), and 7 implants attained ISQ> 70 (16.7%).Conclusions: high and significant survival rate, significant secondary stability, early positive shifting of the mean ISQ value, no remarkable complications in implants inserted by ultrasonic implant site preparation indicated that piezosurgery is a reliable alternative and safe method used in dental implant osteotomy


Article
Buccal Cortical Bone Thickness in Iraqi Arab Adults by Cone Beam Computed Tomography for Orthodontic Mini-Implants

Authors: Saad A. Abbas --- Akram F. Alhuwaizi اكرم فيصل الحويزي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 1 Pages: 183-187
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Cortical bone thickness is important for the stability of mini implants. Placing mini implants in sites of favorable cortical bone thickness would guarantee better initial stability and long-term success. The aim of this study was to investigate gender, side and jaw differences of the buccal cortical bone thickness as a guide for orthodontic mini screw placement.Materials and Methods: The sample was selected from the patients attending the Specialized Health Center in Al-Sadr City / 3D department. Thirty patients (15 males and 15 females) were selected and cone beam computerized tomographic images were done. Then the buccal cortical bone thickness was measured at thirteen inter radicular sites in the maxilla and mandible from the mesial side of the second molar to the mesial side of the second molar on the other side. The resulting data were statistically analyzed using independent t-test on SPSS program.Results: The buccal cortical bone thickness of the males was more than the females for both jaws. The mandibular buccal cortical bone thickness was thicker than in the maxillary and in the anterior region was thinner than in the posterior region for each jaw. The thickness of the buccal cortical bone was generally greater on the left side


Article
Effect of Platelet-Rich Fibrin on Implant Stability

Authors: Amjed Fouad Hussien امجد فؤاد حسين --- Ali Hussien Al-Hussaini علي حسين الحسيني
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 4 Pages: 58-64
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Preparation of platelet-rich fibrin (PRF) is a simple, low cost and minimally invasive method to obtain a natural concentration of autologous growth factors that is widely used to accelerate soft and hard tissue healing, thus, PRF is used in different fields of medicine. The aim of this study was to evaluate the effect of local application PRF on stability of dental implants.Materials and methods: nineteen healthy patients with adequate alveolar bone with two or more adjacent missing teeth and/or bilaterally symmetric to the midline (split-mouth design) missing teeth participated in this study. Each patient received at least two dental implants (Dentium Co., Korea). After surgical preparation of the implant sockets, the PRF was applied randomly into one of the implant socket before the placement of implant fixture )study group), while the second implant was inserted without PRF (control group). The implant stability was measured by resonance frequency analysis (RFA) using OsstellTM ISQ, at the time of surgery (primary stability), and at 4, 8 and 12 weeks postoperatively (secondary stability).Results: Although in the three records of secondary stability, the mean implant stability quotient (ISQ) in the study group was higher compared to the control group, this elevation was statistically not significant (P value > 0.05). On the other hand, PRF showed a significant effect on implants stability by 2.367 folds for implants that achieved primary stability ≥ 70 and maintained this stability after 12 weeks.Conclusions: Within the limitations of this study, local application of PRF exhibited that there was no statistical beneficial effect on implant stability. No significant correlation was found between local bone density and implant stability in both groups.


Article
Efficacy and Safety of a Single Rod – Contraceptive Implant (Implanon)
فعالية وسلامة قضيب واحد - زرع وسائل منع الحمل (Implanon)

Author: Shiemaa Mohsen Al-Khafajee شيماء محسن الخفاجي
Journal: Al-Qadisiyah Medical Journal مجلة القادسية الطبية ISSN: 18170153 Year: 2017 Volume: 13 Issue: 23 Pages: 92-100
Publisher: Al-Qadisiyah University جامعة القادسية

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Abstract

Background : Implanon is a subdermal contraceptive implant involves the delivery of a steroid progestin(68 mg of etonogesterel) from a single rod placed under the skin at the inner side of the non-dominant upper arm and the hormone diffuses out slowly at a stable rate providing contraceptive effectiveness for 3 years. Advantages of Implanon includes long term contraceptive action without requiring the user's or provider's attention , low dose of highly effective contraception without use of estrogen and fertility is readily reversible after the removal of implant.Objectives: to assess contraceptive efficacy , safety and acceptability of Implanon .Materials and methods: the study was conducted in Iraq- Al-Samawa and Al-Diwaniya maternity and pediatrics teaching hospital, family planning clinics and privet clinics from the period of October 2012 – October 2014 that includes 41 sexually active women 18-45 years seeking for contraception with normal menstrual cycles , no history of ischemic heart disease or stroke and no history of breast or genital tract malignancy.Results: contraceptive efficacy of Implanon was 98% over 2 years follow up and the most common adverse experience was abnormal bleeding pattern in 100% of women ,as amenorrhea affects 51.22% , infrequent bleeding 26.82% ,prolonged bleeding 12.20% and metromenorhagia 9.76%.. Discontinuation rate was 2.44% because of menstrual bleeding abnormality. Other adverse experiences after Implanon insertion were weight gain of ≤ 5kg in7.32% after 2 years follow up , acne in 31.71% , mood changes in 21.95% and headache in 12.20%.Conclusions: Implanon is a safe , highly effective and rapidly reversible new method of contraception and the safety profile is acceptable and not essentially different from progestogens in general.

خلفية: Implanon هو وسيلة لمنع الحمل تحت الجلد تنطوي على تسليم البروجستين الستيرويد (68 ملغ من etonogesterel) من قضيب واحد وضعت تحت الجلد في الجانب الداخلي من الذراع العلوي غير المهيمنة وينتشر الهرمون ببطء بمعدل ثابت توفير فعالية وسائل منع الحمل لمدة 3 سنوات. تشمل مزايا Implanon إجراء منع الحمل طويل المدى دون الحاجة إلى انتباه المستخدم أو المزود ، وجرعة منخفضة من وسائل منع الحمل الفعالة للغاية دون استخدام هرمون الاستروجين والخصوبة يمكن عكسها بسهولة بعد إزالة الزرع.الأهداف: تقييم فعالية وسائل منع الحمل وسلامة ومقبولية Implanon.المواد والأساليب: أجريت الدراسة في مستشفى السماوة والديوانية التعليمي للأمومة وطب الأطفال وعيادات تنظيم الأسرة والعيادات الخاصة من الفترة من أكتوبر 2012 إلى أكتوبر 2014 والتي تضم 41 امرأة ناشطة جنسياً 18-45 سنة يبحثن لمنع الحمل مع دورات الطمث العادية ، لا يوجد تاريخ من مرض نقص تروية القلب أو السكتة الدماغية وليس لديهم تاريخ من سرطان الثدي أو الجهاز التناسلي.النتائج: كانت فعالية وسائل منع الحمل لـ Implanon 98٪ على مدى عامين من المتابعة وكانت التجربة السلبية الأكثر شيوعًا هي نمط النزيف غير الطبيعي لدى 100٪ من النساء ، حيث يؤثر انقطاع الطمث على 51.22٪ ونزيف نادر 26.82٪ ونزيف طويل 12.20٪ و Metromenorhagia 9.76٪. وكان معدل التوقف 2.44 ٪ بسبب نزيف الحيض. كانت التجارب السلبية الأخرى بعد إدراج Implanon زيادة في الوزن بمقدار kg 5 كجم في 7.32 ٪ بعد سنتين من المتابعة ، وحب الشباب في 31.71 ٪ ، وتغيرات المزاج في 21.95 ٪ والصداع في 12.20 ٪.الاستنتاجات: Implanon هو وسيلة جديدة آمنة وفعالة للغاية وقابلة للانعكاس بسرعة لمنع الحمل وملف تعريف السلامة مقبول ولا يختلف جوهريًا عن بروجستيرونيات المفعول بشكل عام.


Article
A Novel Use of Biomaterial Implants For Reconstruction of Orbital Floor Fracture

Authors: Kamal Turki Aftan --- Elham Hazeim Abdulkareem
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2017 Volume: 4 Issue: 1 Pages: 25-34
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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