DES 0830 - Expanded Functions I DES 0830 - Expanded Functions I 20 con. hrs. Occupational This course provides you with the knowledge to perform expanded functions permitted by the Florida State Board of Dentistry. The ethical and legal aspects of dentistry and theory behind applying sealants, making impressions for study casts, placing and removing a rubber dam and matrices, applying cavity liners, varnishes and bases, and placing or removing temporary restorations will be discussed. Course Designations: (CH)