Open AccessTHE USE OF CASTING INVESTMENTS FOR SOLDERING GOLD IMPLANT BARS
Author(s) -
Panagiotis C. Zoidis,
George A. Thoupos,
Nikolaos D. Karellos,
Sheldon Winkler
Publication year - 1996
Publication title -
implant dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.538
H-Index - 65
eISSN - 1538-2982
pISSN - 1056-6163
DOI - 10.1097/00008505-199600530-00004
Subject(s) - gypsum , materials science , implant , abutment , gold alloys , metallurgy , gold alloy , soldering , zinc phosphate , investment (military) , stereo microscope , casting , dentistry , composite material , structural engineering , engineering , zinc , surgery , medicine , alloy , politics , political science , law
The use of gypsum- and phosphate-bonded casting investments for soldering gold implant bars was investigated. Eighteen gold implant bars were sectioned and divided into two groups of nine specimens each. One group of bars was invested with gypsum-bonded investment and the other group invested with phosphate-bonded investment. The accuracy of fit of each group was measured at the gold cylinder-abutment interface in microns using a stereomicroscope. The use of gypsum-bonded investment resulted in a more accurate fit as compared with phosphate-bonded investment.