Jan Adriaan (Arjan) Haverhals


Mr. Haverhals brings more than 30 years of sales, marketing, product development, and international expansion experience within the medical device, pharmaceutical, and other industries. Mr. Haverhals has been responsible for the growth and profitability of both startups and global industry leaders, organically and through strategic acquisitions. Prior to joining the Company and Wand Dental, Mr. Haverhals was senior vice president of sales at Xcentric Mold & Engineering, where he was instrumental in increasing sales productivity and efficiency for that company’s prototype injection molding services, which included leading healthcare company clients. Previously, at Straumann, LLC, a global leader in manufacturing medical and dental devices, Mr. Haverhals held a series of senior sales and marketing roles including vice president of customer marketing & education, where he oversaw all product franchises and led the launch of more than 30 products in the North American market. Mr. Haverhals also served as senior vice president for the Nordic Region at Straumann AB, senior vice president of global sales digital solutions, which included oversight of the strategic acquisition of Etkon; and served as vice president of the Prosthetics Business Unit, where he introduced a new implant and prosthetics product line within a new market segment. He also served as vice president of global marketing & sales at Elkem AS, one of Norway's largest industrial companies. Previously, Mr. Haverhals served as executive vice president of marketing & sales at Cresco Ti Systems Sàrl, a global dental implant company, where he was responsible for turning around and managing global sales, marketing, international business. Mr. Haverhals holds an MS in Pharmacy from the University of Leyden in the Netherlands.

Mark Hochman, D.D.S.

Director of Clinical Affairs

Dr. Hochman has served as Director of Clinical Affairs and Director of Research and Development since 1999. He has a Doctorate of Dental Surgery with advanced training in the specialties of Periodontics, Orthodontics and Implant Dentistry from New York University of College of Dental Surgery, and has been practicing Dentistry since 1984. He formally held a part-time faculty appointment as a clinical associate professor at NYU School of Dental Surgery for over ten years and remains an active international lecturer on a variety of topics. He is recognized as a world authority on Advanced Drug Delivery Systems, having published numerous scientific articles in this area, and is credited for developing several new techniques using this innovative technology. Dr. Hochman has been responsible for inventing and contributing to the development of much of the technology currently available from Milestone.

Leonard Osser

Interim Chief Executive Officer and Director

Leonard Osser has been Interim Chief Executive Officer since December 2017. From July 2017 to December 2017, he had been Managing Director –China Operations. Prior to that, he served as Milestone Scientific’s Chairman from 1991 until September of 2009, and during that time, from 1991 until 2007, was also Chief Executive Officer of Milestone Scientific. In September 2009, he resigned as Chairman of Milestone Scientific, but remained director, and assumed the position of Chief Executive Officer. From 1980 until the consummation of Milestone Scientific’s public offering in November 1995, Mr. Osser was primarily engaged as the principal owner and Chief Executive Officer of U.S. Asian Consulting Group, Inc., a New Jersey-based provider of consulting services specializing in distressed or turnaround situations in both the public and private markets. Mr. Osser’s knowledge of our business and background with us since 1980 provides the Board with valuable leadership skills and insight into our business and accordingly, the expertise needed to serve as one of our directors.