An evaluation of a lathe-cut high-copper amalgam alloy.
Modification of an amalgam alloy may give rise to improved physical properties. The physical properties of a newly formulated, single-composition lathe-cut amalgam alloy were studied and found to be superior to those of a conventional lathe-cut amalgam alloy. However, such modification in formulation may result in changes in the clinical handling properties of the material. The high-copper amalgam alloy was assessed by a panel of general practitioners who found that the general handling properties of the material were similar to those of conventional lathe-cut amalgam alloys. The longer term performance of the high-copper alloy was assessed by means of a blind, controlled clinical trial carried out by two operators. A 1-year assessment of the resulting restorations and tooth replicas could not distinguish between the high-copper alloy and a conventional alloy. The two alloys had both given good clinical results.
Knibbs
P J
PJ
Department of Conservative Dentistry, Dental School, University of Birmingham, U.K.
Plant
C G
CG
Shovelton
D S
DS
Jones
P A
PA
D000328:Adult; D002986:Clinical Trials as Topic; D003300:Copper; D003722:Dental Alloys / Q000592:standards*; D003723:Dental Amalgam / Q000592:standards*; D003737:Dental Cavity Preparation; D003793:Dental Restoration, Permanent / Q000592:standards; D006801:Humans; D011897:Random Allocation; D013499:Surface Properties
D003722:Dental Alloys; D003300:Copper; D003723:Dental Amalgam