Objective: As the high strength glass ceramics had attained a profound contribution in prosthodontics, it was aimed to evaluate the fatigue performance of two machinable high strength glass ceramics with further fracture mode analysis.Materials and methods: Twenty crowns were fabricated using Cerec in-Lab CAD\CAM system, ten crowns were fabricated from IPS. E.max CAD: group (EM-LDS) as control gro...