𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Wear of dental amalgam

✍ Scribed by Roberts, J. C. ;Powers, J. M. ;Craig, R. G.

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
684 KB
Volume
11
Category
Article
ISSN
0021-9304

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✦ Synopsis

Abstract

The wear of dental amalgam was studied by single‐ and double‐pass sliding and by a silicon carbide abrasion test. A dispersed amalgam showed significantly better resistance to two‐body abrasion than the spherical amalgams tested. The wear of amalgam was determined by resistance to penetration and by a ductile mode of surface failure over the load range studied. Differences in the wear of amalgam and restorative resins and composites are discussed.

πŸ“œ SIMILAR VOLUMES

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Short-term stress relaxation of four dental amalgam alloys was studied. Test materials included two conventional lathe-cut restoratives, a spherical alloy, and a dispersed phase product. Specimens were 24-hr-old 4 X 8-mm cylinders. The specimens were compressed and held a t constant strain on develo