|تعداد مشاهده مقاله||12,794,578|
|تعداد دریافت فایل اصل مقاله||6,126,750|
Microleakage of Amalgam Restorations after Exposure to Electromagnetic Fields of a Commercial Hair Dryer: An Ex-Vivo Study
|Journal of Biomedical Physics and Engineering|
|مقالات آماده انتشار، اصلاح شده برای چاپ، انتشار آنلاین از تاریخ 16 مرداد 1402 اصل مقاله (772.9 K)|
|نوع مقاله: Original Research|
|شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.2210-1551|
|Maryam Paknahad1؛ Ali Dehghani2؛ Iman Khaleghi3؛ Mahsa Eghildespour4؛ Ghazal Mortazavi5؛ Seyed Mahammad Javad Mortazavi* 6|
|1Oral and Dental Research Center, Oral and Maxillofacial Radiology Department, Dental Faculty, Shiraz University of Medical Sciences, Shiraz, Iran|
|2Department of Oral and Maxillofacial Pathology, Biomaterial Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran|
|3Department of Operative Dentistry, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran|
|4Department of Medical Physics and Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran|
|5Dr. Mortazavi’s Private Clinic, Shiraz, Iran|
|6Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran|
|Background: Dental amalgam is a popular restorative material used in posterior teeth. Hair dryers can emit electromagnetic fields (EMFs) that may affect the microleakage of the amalgam-tooth interface. |
Objective: The aim of this experimental study was to investigate whether the EMFs produced by commercial hair dryers could cause microleakage in amalgam restorations.
Material and Methods: In this experimental study, a total of 100 human extracted teeth without cavities were selected and prepared for class V preparations on their buccal aspects. The teeth were divided into five groups (G1–G5), each containing 20 teeth. Group 1 served as the control group and was not subjected to any treatment. Groups 2 to 5 were exposed to EMFs of a hair dryer (2000 W, 220 V, and 50 Hz). Groups 2 and 3 were exposed to “EMFs +Hot Air” for 20 min at 10 cm and 30 min at 5 cm, respectively. Groups 4 and 5 were exposed to “EMFs +Cool Air” for 20 min at 10 cm and 30 min at 5cm, respectively. After preparation, the sectioned teeth were evaluated for microleakage using dye penetration measurement.
Results: The microleakage scores showed a significant difference among the three exposure groups (G2, G3, and G5) and the control group (P=0.001, 0.002, and 0.01, respectively). However, there was no significant difference between G4 and G1. The microleakage score in G2 was higher than that in G4.
Conclusion: This study suggests that the common use of hair dryers can lead to damage in amalgam restorations.
|Electromagnetic Fields؛ Dental Leakage؛ Dental Amalgams|
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