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Article
Dental implants in an orthodontically created spaces using NiTi open coil spring in anterior and premolar regions

Authors: Omar Fawzi Abduljabbar --- Omed I. Shihab --- Othman A. Omer
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 2 Pages: 1722-1725
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Orthodontic space opening is a common treatment for congenitally missing teeth. Dental implants are often used to replace the missing tooth to establish ideal esthetics without restoring the adjacent teeth. This study aimed to investigate the outcome of implants placed in orthodontically created bone. Methods: Fifty dental implants were used for rehabilitation of lost tooth/teeth in 30 patients after space creation using orthodontic treatment. Patients with congenital and traumatic missing tooth/teeth, who lost the space for accommodation of normal size crown, and patients with spacing were enrolled in the study. NiTi open coil spring was used for space creation. The patients were followed up clinically and radiographically (OPG). Results: Out of 50 implants, the success rate was 78% (39 implants). Eleven implants (22%) failed to get osseointegration. Mean age of the patients was 26.33. Female patients constituted 63.33%, and male patients 36.67%. A new one replaced all the failed implants. Most of the failures were in the mandible. Conclusion: Orthodontic treatment can be used as a type of osteodistraction method for provision of an acceptable amount of bone for dental implants. The quality of the gained bone can be improved by offering sufficient time for healing.


Article
Prevalence of hypodontia of permanent dentition in a sample of orthodontic patients In Erbil City: An orthopantomograph study
انتشار نقص الأسنان للأسنان الدائمة في عينة من مرضى تقويم الأسنان في مدينة أربيل: دراسة تقويم العظام

Authors: Muhammad Husain Saleh --- Omar Fawzi Abduljabbar --- Rebin Ali Mohammed
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 2 Pages: 1751-1756
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Developmentally missing teeth include hypodontia, oligodontia, and anodontia. In the case of absence of one or more teeth or supernumerary one, the need for treatment is very great. Aesthetic concerns, periodontal diseases and malocclusion are some of the complications following hypodontia. This study aimed to find out the prevalence and distribution of hypodontia in Erbil orthodontic patients in relation to the side, jaw, tooth types and gender.Methods: Orthopantomograms of 600 patients (10-34 years old), seeking orthodontic treatment from different orthodontic clinics in Erbil city between 2014 and 2015 were evaluated. A tooth diagnosed as congenitally missing when cannot be identified or discerned radiographically on the basis of calcification and there is no evidence of extraction.Results: The prevalence of hypodontia was 6.66%. Maxillary lateral incisors were most frequently missing (42.68%), followed by mandibular second premolars (19.51%). Hypodontia was more frequently found in females with no statistically significant difference. 62.5% of hypodontia located in maxilla while 27.5% located in the mandible and only 10% was in both arches in the same patient.Conclusion: The pattern and prevalence of hypodontia are different among races and ethnic groups. The prevalence of hypodontia in Erbil orthodontic patients was 6.6%. Upper lateral incisor was the most frequently missing teeth. Tooth agenesis in the upper arch was more prevalent than in the lower arch.


Article
Thermal change assessment in the pulp chamber during orthodontic bonding with different light curing sources (An in vitro study)
تقييم التغير الحراري في غرفة اللب أثناء ربط تقويم الأسنان بمصادر علاج مختلفة للضوء (دراسة في المختبر)

Authors: Sazan Sh. Saleem --- Diyar Kh. Bakr --- Omar Fawzi Abduljabbar
Journal: Zanco Journal of Medical Sciences مجلة زانكو للعلوم الطبية ISSN: 19955588/19955596 Year: 2017 Volume: 21 Issue: 1 Pages: 1659-1663
Publisher: Hawler Medical Univeristy جامعة هولير الطبية

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Abstract

Background and objective: Thermal change in pulp chamber with the use of light cured adhesives is one of the contemporary concerns for orthodontists. This study aimed to evaluate intra pulpal temperature rises during bracket bonding using three different light sources.Methods: Sixty intact-extracted mandibular premolars were divided into three groups of twenty teeth for each. Orthodontic brackets were bonded to the buccal surface of all the teeth with Transbond XT adhesive applying a constant force, first group light cured with halogen light, in second group light emitting diode was used, in third group plasma, arc light was used. The measurements were taken with a J-type thermocouple wire, placed in the center of the pulp chamber and connected to a data plugger.Results: Statistical analysis showed that temperatures of pulp chamber change were influenced by a type of light source. The intra pulpal temperature changes for halogen was higher than a light emitting diode and both were higher than plasma arc. All the groups revealed a significant difference between each other.Conclusion: Orthodontic bonding with using different light source did not exceed the critical 5.5° C temperature rise that may induce a thermal change in the pulp.


Article
Evaluation of water atomized solid-state laser apparatus as a method for debonding ceramic orthodontic brackets (An In vitro study)

Author: Dr. Omar Fawzi Abduljabbar Chawshli, BDS, MSc, PhD د.عمر فوزي عبد الجبار
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2018 Volume: 15 Issue: 1 Pages: 69-76
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background and objectives: The contemporary demand for esthetic less visibleceramic bracket is associated with the disadvantage of complicated and difficultdebonding procedure at the end of the treatment. The aim of this study was toevaluate the water atomized laser system for debonding ceramic brackets.Method: Eighty maxillary premolars were divided into two main groups. In group-1,poly crystalline ceramic brackets (Reflections, Ortho technology, USA) werebonded to buccal enamel surface. In group-2, mono crystalline ceramic brackets(PURE, Ortho Technology USA). Were bonded to buccal enamel surface. Forall teeth, the same bracket bonding system was used. Following debonding withboth water atomized laser device and manual debonding instrument, teeth andbrackets were examined under 10X magnification for assessment of bracketfailure (fracture) and of residual adhesive on the enamel surface using amodified adhesive remnant index (ARI). Enamel surfaces were visualized withtrans-illumination prior to bonding and after removal of the residual adhesive, sothe effect of the debonding forces could be determined. The numbers of thefractured brackets were counted.Results: Statistical analysis showed a significant difference in the ARI betweendebonding with water atomized laser and utility-debonding pliers in such awaymore adhesive remnant was revealed on teeth with laser debonding. Also lessenamel damage recorder with laser group debonding compared withconventional debonding procedure, which was statistically significant,additionally more bracket fractures encountered with conventional debondingthan debonding with laser apparatus, which was highly significant statistically.Conclusions: Debonding of ceramic orthodontic brackets could be done with wateratomized laser apparatus with minimal enamel surface cracks and lesser chanceof bracket fractures.

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