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Fig. 3 | BMC Oral Health

Fig. 3

From: Effect of abutment design on fracture resistance of resin-matrix ceramic crowns for dental implant restoration: an in vitro study

Fig. 3

Scanning electron microscope photographs of the fractured surface

A (×200) and B (× 2000): Vita Enamic-2 mm, C (×200) and D (× 2000): Lava Ultimate-2 mm. White circle o: fracture origin, arrows: direction of crack propagation. The fracture surface of Vita Enamic (A and B) showed a coarser grain structure, which was related to its double-network structure. Lava Ultimate (C and D) showed more delicate particles and a smooth fracture surface, which was closer to the fracture structure of the composite resin

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BMC Oral Health

ISSN: 1472-6831

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