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Mechanical Properties of CAD/CAM Denture Base Resins
Purpose:
To evaluate the influence of fabrication processes on the mechanical properties of denture base resins.
Materials And Methods:
Flexural strength, fracture toughness, and Vickers hardness were measured on a conventional pack-and-press resin (PRO), a resin for injection molding (CAP), and a CAD/CAM disc (CAD).
Results:
For maximal flexural strength, PRO (97.31 MPa) was stronger than CAD (87.98 MPa) and CAP (79.35 MPa). CAD displayed hardness similar to PRO and high fracture toughness.
Conclusion:
CAD/CAM denture base resin mechanical properties result from the evolution of denture base materials, combining high-impact fracture toughness and improved flexural strength and hardness.
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