The Journal of the American Dental Association
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J Am Dent Assoc, Vol 127, No 9, 1351-1356.
© 1996 American Dental Association
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Journal of the American Dental Association, Vol 127, Issue 9, 1351-1356
Copyright © 1996 by American Dental Association

Journal Article

Microleakage of amalgam alloys: an update



DB Mahler and RW Bryant
Oregon Health Sciences University, School of Dentistry, Portland, Ore 97201, USA.

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 practitioners should be alert to this potential problem.


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D. B. MAHLER and J. H. ENGLE
Clinical Evaluation of Amalgam Bonding in Class I and II Restorations
J Am Dent Assoc, January 1, 2000; 131(1): 43 - 49.
[Abstract] [Full Text] [PDF]


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