Incorporation of adhesive liners in amalgam: effect on compressive strength and creep.
This study evaluated the effects of two adhesive resin liners (Panavia EX and Amalgambond) on the compressive strength and creep rate of a single composition high-copper amalgam alloy (Tytin). Cylindrical specimens were prepared by dead-loading or hand-condensing amalgam in a Teflon mold which was unlined, lined with Panavia EX, or lined with Amalgambond. Compressive strength specimens were tested at 1 hour, 24 hours, and 7 days after preparation. Creep specimens were tested at 7 days. The adhesive resin liners did not significantly affect the strength of the Tytin specimens prepared by dead-loading (P greater than 0.05). The Panavia EX significantly reduced the strength of the Tytin specimens prepared by hand-condensing (P less than 0.05). The creep rate was not significantly affected by either resin liner.
USAF Dental Investigation Service, Brooks AFB, Texas.
D G
DG
Charlton
D F
DF
Murchison
B K
BK
Moore
D000704:Analysis of Variance; D003722:Dental Alloys; D003723:Dental Amalgam; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003793:Dental Restoration, Permanent / Q000379:methods; D008689:Methacrylates; D010710:Phosphates; D019279:Resin Cements; D014783:Viscosity
C070606:Amalgambond; D003722:Dental Alloys; D008689:Methacrylates; D010710:Phosphates; D019279:Resin Cements; C036886:tytin; D003723:Dental Amalgam; C052304:Panavia EX