Does Magnetic Resonance Imaging Affect the Microleakage of Amalgam Restorations?
| Autor: | Ahmet TuranIllca, Feridun Başak, Ceren Yildirim, Pervin Demir, Ozlem Marti Akgun, Gunseli GuvenPolat |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Molar
Dye penetration Orthodontics Design analysis medicine.diagnostic_test Head& Neck Imaging business.industry Dentistry Magnetic resonance imaging engineering.material Dental Amalgam Magnetic Resonance Imaging Amalgam (dentistry) stomatognathic diseases Cementoenamel junction stomatognathic system Microleakage Dentin adhesive Statistical analyses engineering medicine Radiology Nuclear Medicine and imaging business |
| Zdroj: | Iranian Journal of Radiology |
| ISSN: | 2008-2711 1735-1065 |
| Popis: | Background: The effect of MRI on microleakage of amalgam restorations is an important health issue that should be considered. If MRI application causes increase of microleakage, amalgam fillings should be reassessed after MRI and replaced if necessary. Objectives: The aim of this study is to compare the effect of magnetic resonance imaging (MRI) on microleakage of class II bonded amalgam versus classical amalgam restorations. Materials and Methods: Class II cavities (3 mm width × 1.5 mm depth) with gingival margins ending 1 mm below the cementoenamel junction (CEJ) were prepared in 40 permanent molar teeth. The teeth were randomly divided into four groups. Cavities in the first and second groups were restored with dentin adhesive and amalgam (bonded amalgam), and those in the third and fourth groups with amalgam only. MRI was performed with the teeth specimens from the first and third groups. All specimens were then thermocycled at 5° to 55° C with a 30-second dwell time for 1000 cycles. The samples were then immersed in 0.5% methylene blue dye for 24 hours and sectioned longitudinally. Dye penetration at the occlusal and gingival margins was quantified by 15× stereomicroscopy. IBM SPSS Statistics ver. 21.0 (IBM Corp., Released 2012., IBM SPSS Statistics for Windows, Armonk, NY: IBM Corp.) and MS-Excel 2007 programs were used for statistical analyses and calculations. “nparLD” module was used for F2_LD_F1 design analysis at R program. P |
| Databáze: | OpenAIRE |
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