“Effect of Palatal Metal Collar’s Height on Fracture Resistance of Single Metal-Ceramic Crowns”

Figure 4

(a) Metal coping with 0 mm palatal metal collar in height or collarless. (b) Metal coping with 1.0 mm palatal metal collar in height. (c) Metal coping with 1.5 mm palatal metal collar in height. (d) Metal coping with 2.0 mm palatal metal collar in height.

(a)

(b)

(c)

(d)