DES 2832C - Expanded Functions I DES 2832C - Expanded Functions I This course includes, but is not limited to, the ethical and legal aspects of dentistry, applying sealants, making impressions for study casts, placing and removing rubber dam and matrices, applying cavity liners, varnishes and bases, and placing or removing temporary restorations. Semester Hours: 2 credit hours Semester all Course Designations: AS only