In vitro microleakage of a gallium alloy vs conventional silver amalgam alloy
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Amalgam has been the most commonly used dental restorative material for over 150 years [1-3]. Its continuing popularity is based on its longevity, ease of use, and cost-effectiveness. However, two important disadvantages of amalgam restorations are the toxicity of mercury and marginal leakage. Recently, a Japanese company produced a new mercury free restorative alloy . The goal of this study is to characterize the microleakage property of "Gallium Alloy GF". Eighty extracted human teeth were prepared with Class V cavities and randomly divided into four equal groups of twenty each. These groups were subdivided into another two groups of ten each for a total of eight groups. In the first subgroup, 20 teeth received amalgam restorations with two thin coats of varnish applied to the wall and the margins of the cavities. The second subgroup of 20 teeth received amalgam only. For the third subgroup of 20 teeth GA alloy restorations were placed with two thin coats of varnish. The fourth subgroup of 20 teeth were received the GA alloy only. These were again subdivided into groups to be treated with dye and evaluated by microscope both 24 hours and 30 days after the thermal cycling procedures.
PLEASE NOTE: This work is protected by copyright. Downloading is restricted to the BU community: please click Download and log in with a valid BU account to access. If you are the author of this work and would like to make it publicly available, please contact email@example.com.Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1993 (Pediatric Dentistry)Includes bibliography (p. 92-102)
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