94. Plaintiff brings this action under Federal Rule of Civil Procedure 23(a), 23(b)(2), and 23(b)(3) on behalf of Plaintiff and the following Class: All persons in the United States who directly purchased Dental Products from Henry Schein, Inc., Patterson Companies, Inc. or Benco Dental Supply Company at any time during the period from January 20, 2012 until the conduct challenged in this Complaint ends (“Class Period”). Henry Schein, Inc., Patterson Companies, Inc., and Benco Dental Supply Company and their subsidiaries are not included in the Class. Also excluded from the Class are federal and state entities that directly purchased Dental Products from one or more Defendants.  95. Members of the class are so numerous that joinder is impracticable. The class includes thousands of private dental practices and dental laboratories.  96. Defendants’ alleged conduct applies generally to the class as a whole.  A. THE DENTAL PRODUCTS INDUSTRY 