Fatigue resistance of all-ceramic fixed partial dentures - Fatigue tests and finite element analysis

The fatigue resistance of the translucent zirconia 3-unit FPDs was about 60-70% higher than that of the lithium disilicate 3-unit FPDs, which may justify their use for molar replacements, provided that a minimal connector size of 4 mm × 4 mm is observed. Even with a limited number of specimens (n = 9) per group it was possible to statistically differentiate between the tested groups.