Effect of adhesive volume on the bond strength of bonded complex amalgam restorations.
OBJECTIVE
To evaluate in vitro the effect of adhesive volume on the bond strength of bonded complex amalgam restorations using Amalgambond Plus with HPA powder.


METHODS
Standardized 6 mm-diameter dentin cylinders were prepared from 30 extracted human molar teeth. Specimens were divided into two groups (n=15). Group 1 received a minimal volume (5 microl) of Amalgambond Plus with HPA powder and Group 2 received a surplus volume (10 microl) of Amalgambond Plus with HPA powder. Amalgam restorations were placed, and loaded at 45 degrees to the long axis of the tooth using an Instron testing machine.


RESULTS
Group 1: 14.71 (+/- 3.41) MPa, Group 2: 15.67 (+/- 3.72) MPa. A Student's t-test indicated no significant difference between the groups (P> 0.05).
Overton
Johnie D
JD
Department of Restorative Dentistry, University of Texas Health Science Center-MSC 7890, 7703 Floyd Curl Drive, San Antonio, Texas 78229-3900, USA. overtonj@uthscsa.edu
Vance
Richard I
RI
D000268:Adhesiveness; D003723:Dental Amalgam / Q000737:chemistry; D001840:Dental Bonding / Q000379:methods*; D003764:Dental Materials / Q000737:chemistry*; D017268:Dental Prosthesis Retention / Q000379:methods*; D003793:Dental Restoration, Permanent / Q000379:methods; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing / Q000379:methods; D008689:Methacrylates / Q000737:chemistry*; D008963:Molar
C070606:Amalgambond; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D003723:Dental Amalgam