An investigation of the stress values on a tooth restored by amalgam.
The study was carried out in two stages: (1) MOD amalgam cavities were prepared on maxillary second premolars and three strain gauges were attached to the palatal surface of each tooth. The teeth were filled using amalgam with and without base material (glass-ionomer). Stresses occurred during the hardening phase and also through mastication and were measured by strain-gauge rosettes. (2) The stresses which occurred at the same points were calculated by the finite element method and compared with the values obtained experimentally. The highest stress values were observed when no base material was used.
Toparli
M
M
Department of Metallurgical and Materials Engineering, Faculty of Engineering, Dokuz Eylül University, Bornova, Izmir, Turkey.
Gökay
N
N
Aksoy
T
T
D001641:Bicuspid / Q000502:physiology*; D001732:Bite Force; D019245:Compressive Strength; D003723:Dental Amalgam / Q000737:chemistry; D003736:Dental Cavity Lining; D003737:Dental Cavity Preparation / Q000379:methods; D003793:Dental Restoration, Permanent; D020342:Finite Element Analysis; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008409:Mastication / Q000502:physiology; D008422:Materials Testing; D013314:Stress, Mechanical
D005899:Glass Ionomer Cements; D003723:Dental Amalgam