CERCON Zirconia

Preparation for an anterior crown is preformed with a coarse diamond bur; facial reduction of 0.8 mm to 1.5 mm must be achieved.	For the anterior all-ceramic crown, lingual reduction of 0.8 mm to 1.5 mm must be performed with a football-shaped bur.
Preparation of the posterior all-ceramic crown requires at least 0.8 mm to 1.5 mm of reduction on the buccal and lingual aspects.	Posterior CERCON crowns require reduction of at least 1.5 mm from the deepest occlusal pit.

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