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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Dent Mater. 2008 Mar 7;24(8):1107–1113. doi: 10.1016/j.dental.2008.01.002

Fig. 2.

Fig. 2

Fig. 2

Fig. 2a. Stereomicroscope image of a mesial marginal edge chip within the veneering ceramic in zone 1 before cleaning the specimen. Note the localized staining covering the chipped ceramic surface.

Fig. 2b. Stereomicroscope image of the same chipped zone 1 after cleaning the crown part 10 minutes in an ultrasonic ethanol bath removing the stain. The arrow labeled “dcp” shows the direction of crack propagation.