2 Unitek Executives Named to Positions at Anaheim’s Steri-Oss

Kenneth A. Darienzo has been appointed president of Steri-Oss, an Anaheim-based manufacturer of dental implant systems. Before joining the company, Darienzo was general manager of Unitek Corp., a subsidiary of 3M Co. that manufactures orthodontic materials. He had been with 3M since 1969. In addition, Kelly Sheehan has been named vice president of marketing for Steri-Oss. He was previously national sales director at Unitek Corp.