PubMed · 2002 · 41 citations · 0 references
DentistryDental Materials ScienceRestorative DentistryCavity PreparationDental MaterialsMechanical Properties Of Dental MaterialsAmalgam Cavity PreparationAmalgam RestorationsDental AmalgamFracture ResistanceStrength PropertiesTooth FracturesAmalgam Compressive StrengthCompressionFracture Resistance Of RestorationsOcclusal Cavity PreparationTest Compression
This study evaluated the fracture resistance of maxillary premolars with MOD cavity preparation and simulated periodontal ligament. The teeth were restored with silver amalgam (G1), Scotchbond Multi-Purpose Plus and silver amalgam (G2) and Panavia F and silver amalgam (G3). After restorations were made, the specimens were stored at 37 degrees C for 24 hours at 100% humidity and submitted to the compression test in the Universal Testing Machine (Instron). The statistical analysis of the results (ANOVA and Tukey Test) revealed that the fracture resistance of group 2 (G2=105.720 kgF) was superior to those of groups 1 (G1=72.433 kgF) and 3 (G3=80.505 kgF) that did not differ between them.