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Stresses in the anchor crowns of a metal‐ceramic bridge in model experiments
Author(s) -
DÉRAND TORE
Publication year - 1981
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1981.tb00478.x
Subject(s) - crown (dentistry) , bridge (graph theory) , materials science , composite material , ultimate tensile strength , principal stress , structural engineering , engineering , medicine , shear stress
Summary A four‐unit principal model bridge was used. The stresses in the porcelain part of an anchor crown were analysed. When the middle of the span was loaded tensile stresses appeared in the outer surface of the porcelain and compressive ones in the interface. Greater stresses were found when the anchor crown was loaded itself. They were not critical, however, when the gold thickness was > 3 mm.