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Article
Causes of Primary and Permanent Teeth Extraction in Children Aged 3–12 Years in Mosul City

Author: Aghareed Gh. Mohammed
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2008 Volume: 8 Issue: 12 Pages: 238-245
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To establish the different reasons of primary and permanent teeth extraction and the most frequent tooth type extracted among children attending the pedodontic and preventive dentistry clinic atCollage of Dentistry ,Mosul University. Materials and Methods: Out of the 375 pediatric patients aged 3–12 years–old attending pedodontic and preventive dentistry clinic, 130 child patients were selectedfor this study. The teeth were examined carefully, the tooth that needed to be extracted was recorded to determine the cause of extraction for each tooth according to the criteria gathered and modified from the following researchers, Cahen et al; Kay and Blinkhorn and Cawson. Results: Statistical results showed highly significant difference at p < 0.001 between primary and permanent teeth and thecause of tooth extraction, as extraction due to caries was the main reason for primary tooth extraction while extraction for orthodontic treatment was the major cause for permanent tooth extraction. The firstpremolar recorded 43.6% this result showed highly significant difference at p < 0.001 compared with other permanent teeth to be extracted, while the first primary molar registered the higher value as an extracted primary tooth type (35.6%) with high significant difference at p < 0.001. Conclusion: Althoughcaries and it is sequelae were the most common causes of premature loss of a primary tooth, an increasing need for tooth extraction for orthodontic treatment in this population of children was observed.


Article
An in Vitro Comparison of Root Canal Length Measurements in Primary Teeth

Author: Aghareed Gh. Mohammed
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2009 Volume: 9 Issue: 13 Pages: 77-82
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: The current study aims at comparing the accuracy of root canal lengths in primary teeth determined by tactile sense, conventional radiography and electronic apex locator(EAL) Materials and Methods: The study consisted of 30 extracted, single-rooted primary teeth . A comparison was conducted between the root canal length measurements obtained by tactile sensation ,conventional radiography and electronic apex locator (EAL), using the actual root canal length as a standardization to compare the above methods. Root canal length measurements were completed with size15-K file in actual-standard and measuring methods. The accuracy of the three systems to determine the root-canal length were evaluated by measuring the distance from the tip of the file to the apex. Results: Statistical results revealed that the EAL was the most accurate method of measurement with the lowest value ofstandard deviation (0.88±1.41) when compared with the remaining two methods, followed by the conventional radiography while the tactile sense method can be considered the least accurate one since, asignificant difference at p<0.05 was founded between this method (15.80±2.71) from the actual root canal length (16.13±2.32) as well as when compared with the other two methods. Conclusions: The use of radiographs during pediatric therapy should be considered carefully. The diagnostic value is often limited and the exposure of children to X- rays should also be limited. Results from this study indicatedthat the sole use of tactile method is generally depreciated because of it's non reliability. An electronic apex locator method have been proved to be the technique of choice in determining the root canallength in primary teeth.

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