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Article
Prevalence of Teeth Number Anomalies in Permanent Dentition in a Sample From Erbil City (an Orthopantomographic Study)

Authors: Khoshee Salih Al-Mufty --- Rebin Ali Mohammed Amin --- Fedil Andraws Yalda --- Ahmad Abdullah Haidar
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2017 Volume: 14 Issue: 1 Pages: 180 -188
Publisher: Babylon University جامعة بابل

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Abstract

Supernumerary teeth are those teeth developed along with normal complement as a result of excess dental lamina in the jaws. Developmentally missing teeth include hypodontia, oligodontia and anodontia. Congenital missing of one or more teeth or a supernumerary tooth requires an urgent treatment as suggested by the Index of Orthodontic Treatment Need. This study tries to evaluate the prevalence and distribution of tooth number anomalies in Erbil patients in relation to the side, jaw, tooth types, and gender. Three thousand orthopantomograms of patients (9-36) years' old who is seeking dental treatments are used to determine the spreading and distribution of the hypodontia, oligodontia, and hyperdontia. Their radiographs are retrieved from Orthodontics and Radiographic Clinics at the College of Dentistry, Hawler Medical University, Erbil/Kurdistan Region of Iraq and private dental radiographic clinic in period from 2013 till 2015. A tooth is diagnosed as congenitally missing in case of no identification or discerned radiographically on the basis of calcification or there is no removal evidence. The chi- square test is to determine the importance of the upper and lower numerical teeth abnormality differences and the differences between genders. Five percent was set as the level of significance.Hypodontia was prevalent by 7.76%, it was more often found in females in right side of maxilla. The most missed tooth was maxillary lateral incisor. The permanent congenital missing teeth were frequently in the maxilla. Mesiodens was the most common supernumerary tooth, and its prevalence was 1.13%.


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
Angle’s classification and hypodontia, is there an association?

Authors: Afrah Kh Al–Hamdany --- Ne’am R Al–Saleem --- Aisha A Qasim
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2007 Volume: 7 Issue: 9 Pages: 1-5
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To find the association between different Angle’s classes of malocclusion and to estimate the distribution of hypodontia according to gender, number of missing teeth and the site of the missing teeth. In addition, the heredity role in hypodontia was investigated. Materials and Methods: About 3415 subjects, 1750 females and 1665 males aging between 18–30 years were examined clinically in addition periapical radiographs were taken for each patient to exclude a possibility of impaction. A family history of hypodontia for each patient was taken (for father, mother, brothers and sisters). Then the sample was divided into 3 groups depending on Angle’s classification of malocclusion. Results: No clear association was found between Angle's classes and hypodontia, females showed higher prevalence of hypodontia than males. Family history was obvious in patients with hypodontia. The upper lateral incisor was the most frequent absent tooth. Conclusions: No association was found between Angle’s classification and hypodontia. The upper lateral incisor was the most frequent missing tooth. Maxilla was affected by hypodontia more than mandible. Females were affected more than males with very obvious effect of family history on hypodontia.


Article
Dental anomalies associated with malocclusion among 13 year old Kurdish students

Author: Tara A. Rasheed تارا رشيد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 2 Pages: 173-178
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The aim of this national oral health survey was to determine the prevalence of malocclusions due tosome anomalies in the dentition among the 13 years old Kurdish students in sulaimani intermediate school.Materials and methods: The total sample was 950 (455 males and 495 females) which assessed by diagnostic set andspecial instrument. The clinical examination was mainly based on the definitions of Björk et al. Some variables wererecorded as present or absent sometimes denoting the tooth or the teeth involved in malocclusion and theirdistribution according to the whole sample.Results: The results showed that 1)The most common extracted tooth was the mandibular first molar (2.9%). 2) At thisage group the most common partially erupted tooth was the maxillary canine (4.2%). 3) The most commonunerupted tooth was the maxillary second molars. 4) The most common retained deciduous tooth was the maxillarycanine (6.8%), then the maxillary second molars (5.4%).5) Hypodontia as judged clinically was found in 2.1% of thesample affecting one or more permanent teeth. The most common congenitally missing tooth was the maxillarylateral incisor (0.9%), mandibular second premolars (0.4%), and then maxillary second premolar (0.2%). 6) 29.2 % ofthe sample had one or more rotated teeth. The most common rotated tooth was the mandibular second premolars(5.3%). 7). The sample showed 30.4% with one or more displaced teeth. The most common displaced tooth was themaxillary lateral incisor (8.8%), then the maxillary canine (7.2%).Conclusion: At the age of 13 both males and females show large range of dental anomalies that are better to becontrolled.


Article
Hypodontia in Iraqi people

Author: Dr Manahel Muhamad Husain Ibraheem B.D.S., D.D.S., M.Sc. د.مناهل محمد
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2009 Volume: 6 Issue: 2 Pages: 125-128
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The most common congenital missing teeth are the upper lateral incisors. This study is performed to find the frequency of missing upper laterals in the young adult Iraqis and to assess their orthodontic treatment. The sample consists of twenty patients with hypodontia of upper lateral incisors (right and left) out of a thousand patients examined for three years in the orthodontic clinic of the Institute of Medical Technology. Gender distribution for patients was 15 females and 5 males. Age distribution for patients ranged from 15 to 25 years. Full record for the hypodontic patients included: photographs, panoramic x-rays and casts taken before and after orthodontic treatment. The treatment by space closure took more orthodontic treatment time and retention period than by space opening and prosthodontic treatment. The frequency of missing upper lateral incisors is 2% (consisting of 1.5% for females and 0.5% for males).


Article
An Orthopantomographic study of hypodontia in permanent teeth of Iraqi patients

Author: Dr. Shahbaa A.Mohammed Al-Ajwadi,B.D.S.,M.Sc. د. شهباء محمد
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2009 Volume: 6 Issue: 2 Pages: 139-144
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

The congenital lack of one or more permanent teeth is a common anomaly in man .By definition, congenitally missing teeth are those that fail to erupt in the oral cavity and remain invisible in a radiograph, which implies this caused by disturbance during the early stages of tooth development.389 orthopantomograms of healthy patients were used the number of males were 194 and the number of females were 195.The patients has visited the hospital of college of dentistry of Baghdad university between 2006 and 2008.Thy were aged between 13 and 27years at the time the OPGs were taken .All OPGs were analyzed by viewer .The congenitally missing teeth were identify first clinically and confirm by the OPGsThe hypodontia mostly seen in upper lateral incisors, and lower second premolar, flowed by lower central incisors, upper central incisors, and lastly the lower lateral incisor, there were gender difference in hypodontia, but both genders show high percentage of upper lateral incisors hypodontia, 60.31%for males, and 72.30%for females. The hypodontia of lower second premolar in males 18.56%,and in females 14.5%.The hypodontia of upper central incisors in males 2.577%,and 0%in females. The hypodontia for lower central incisor in males 12.89%, and 13.3%in females. The hypodontia for lower lateral incisors in males 5.67%, and in females 0%.From these percentages it was clear that there were difference in hypodontia of upper and lower arches.To evaluate the frequency of hypodontia and compare its appearance between males and females and between upper and lower jaw.


Article
Assessment of Congenitally Missing Teeth in Prosthodontic Patients

Author: Dr. Ali Sultan Al-Refai * د. علي سلطان
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2007 Volume: 4 Issue: 1 Pages: 86-92
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Congenital missing of one or more teeth, excluding the third molars is relatively common, but anodontia or oligodontia is rare and may be associated with ectodermal dysplasia. In this study, it was found that among (379) prosthodontic patients, one patient had anodontia representing (0.26 %) of the cases and need complete denture for esthetic and functional demands, and two patients had oligodontia representing (0.52 %). These percentages were higher than other studies in the world, may be due to environmental and / or congenital causes.

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