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Article
Removal of mercury contamination from the dental clinic with metal backing for X-ray film

Author: Angham G. AL-Hashimi انغام الهاشمي
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2005 Volume: 17 Issue: 2 Pages: 24-27
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Mercury in dental clinic has been recognized as a potential health hazard. This evaluated the removal of Hg spills from different surface in dental clinic with tin in the metal backing for dental x-ray film.Materials and Methods: Hg 90 drops (each one of 0.2 g) placed on 9 different surfaces in the dental clinic, and were divided into: Group I (protective surfaces) subgroup 1 (mask) subgroup 2 (gloves) subgroup 3 (dental apron)Group II (dental instrument and equipment) subgroup 1 (metals, for example, the metal tray of sterilizer) subgroup 2 (dental chair unit) subgroup 3 (wet surfaces, for example, the vacuum suction tank of the sucker). Group III (other clinical surfaces) subgroup 1 (working bench) subgroup 2 (the floor) subgroup 3 (the carpet). The metal backing for x-ray film (0.4 g) placed on each Hg spill, and the time of adsorption was recorded in seconds using a digital timer.Results: The results showed adsorption of Hg spills to the metal backing for x-ray film in all groups except in the crevice of the carpet. Group I subgroup 2 showed the faster interaction (7.1 + 2.828 sec.) while group II subgroup 3 showed the slowest interaction (90.3 + 20.981 sec.).Conclusion: Hg spills on dental protective surfaces can be removed easily, while the most difficult spills to be removed were on the wet surface. Furthermore, Hg spills in crevis of the carpet can not be removed

Keywords

Mercury --- metal backing --- x-ray film


Article
Loosing or damaging occur in x-ray films and Its effects on patient health
فقدان أو إتلاف يحدث في أفلام الأشعة السينية وتأثيرها على صحة المريض

Author: Samerra H. Abdullah
Journal: The Medical Journal of Tikrit مجلة تكريت الطبية ISSN: 16831813 Year: 2013 Volume: 19 Issue: 2 Pages: 296-304
Publisher: Tikrit University جامعة تكريت

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Abstract

Radiography is the use of X-rays to view a non-uniformly composed material such as the human body. By using the physical properties of the x-ray an image can be developed which displays areas of different density and composition. This retrospective descriptive study aimed to assess the ratio and the reasons why damaged X- ray films had been detected by the staff of the x-ray department of the Azadi Hospital in Kirkuk city. The present study was carried on 1651 patients who attended radiological department, for period from 1-7-2012 to 30-9-2012. The result showed percentage of x-ray film damaging or losing (25.13%), these losing caused by errors occurred during radiology process, the most x-ray films damaging comes from Technical errors (exposure dose and film processing errors) would be 253 (60.9%)of x-ray film. These errors increase the risk of radiation effects on patients health due to retake x-ray film, patient exposed another dose of radiation.increased.X ray.film.loosing. .

التصوير الشعاعي هو استخدام الأشعة السينية لعرض المواد تتألف غير موحد مثل جسم الإنسان. باستخدام الخصائص الفيزيائية للأشعة السينية صورة يمكن وضعها الذي يعرض مجالات مختلفة الكثافة وتكوينها.هذه دراسة وصفية بأثر رجعي تهدف لتقييم نسبة والأسباب قد تم الكشف التالفة أفلام الأشعة السينية من قبل موظفي قسم الأشعة السينية في مستشفى آزادي في مدينة كركوك. وقد أجريت هذه الدراسة على 1651 مريضا الذين حضروا قسم الإشعاعية، للفترة من 1-7-2012 إلى 30-9-2012. وأظهرت نتيجة النسبة المئوية للفيلم الأشعة السينية ضارة أو فقدان (25.13٪)، وهذه سببها فقدان حدثت أخطاء أثناء عملية الأشعة، ومعظم الأفلام الأشعة السينية الإضرار يأتي من الأخطاء التقنية (جرعة التعرض ومعالجة الأخطاء فيلم) سيكون 253 (60.9٪) من فيلم الأشعة السينية. هذه الأخطاء تزيد من خطر الآثار الإشعاع على صحة المرضى نظرا لاستعادة فيلم الأشعة السينية، يتعرض المريض جرعة أخرى من radiation.increased.X ray.film.loosing. .


Article
Study the Effect pf Using Intensifying Screen on Magnitude of Changing Calibration Curve For Dental X-Ray Film in Manual evelopment Method

Authors: Hanaa N Akrawy --- Muna Y Shamon --- Qusay KH O Al-Dulamey
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2008 Volume: 8 Issue: 12 Pages: 259-265
Publisher: Mosul University جامعة الموصل

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Abstract

Aim: To study the effect of using intensifying screen (Rare Earth ),with a film which dose not existwith it. Materials and Methods: The patient received the radiation dose during dental fustigation byx-ray radiation. The optical density of the x-ray film was measured using densitometer. Result: Adecrease in radiation dose was approximately 20% for the same condition . 241Am was used, because itsenergy (59.5keV) is close to the energy of x-ray in dental radiography. Conclusions: It is essential touse intensifying screen I.S in the diagnoses field of dentistry for the purpose of reducing the amountof radiation dose. It could be concluded that small calibration operation must be determined during theregular interval periods for the optical density measurements of the optical density by densitometer toshow its efficiency

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