RESEARCH

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AUTHORS Mahler DB. Bryant RW.
INSTITUTION Oregon Health Sciences University, School of Dentistry, Portland, Ore 97201, USA
TITLE Microleakage of amalgam alloys: an update
SOURCE Journal of American Dental Association. 49(2):113-25, 1996 Oct 11.
COUNTRY OF PUBLICATION United States
ABSTRACT Using an in vitro air pressure test, the authors found a wide variation in the microleakage characteristics of amalgam restorations made from 33 recently manufactured precapsulated alloys. Spherical particle alloys as a group exhibited the highest microleakage values. When the authors changed the mercury/alloy ratios to produce 1 percent more mercury in the capsules by weight, microleakage decreased significantly. Because extensive microleakage of amalgam restorations has been related to increased postoperative sensitivity, the authors suggest that practioners should be alert to this potential problem.
PUBLICATION TYPE Journal Article
LANGUAGE English
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