About Us

31 Years In Dental Products and Medical Devices

Experience and Education

• COO and Board Member, DenMat Holdings LLC
• COO and Board Member, Discus Dental LLC | Philips
• Board Member, LED Medical
• Board Member, Children's Dental Center
• BS Business Management, Nova Southeastern Univ.

rcartagena@millstreetequity.com

16 Years in Dental Products and Medical Devices

Former General Counsel, U.S. Patent and Trademark Office

Experience and Education

• CAO, Board Member, Investor, DenMat Holdings LLC
• General Counsel, Discus Dental LLC | Philips 
• Attorney, Skadden Arps Slate Meagher & Flom LLP
• BS Chemical Engineering, Carnegie Mellon Univ.
• LLM, Columbia Univ. Law School
• JD Univ. of Pittsburgh School of Law
• Judicial Clerk, U.S. District Court Judge
• Intern, Attorney General of Massachusetts

ttiberi@millstreetequity.com

45 Years in Dental Products and Medical Devices

Experience and Education

• CEO and Board Member, DenMat Holdings LLC
• CEO and Board Member, Discus Dental Inc.
• President & GM Kerr Dental Products (a div. of Sybron)
• Board Member, LED Medical 
• Board Member, C3Jian
• Board Member, American Dental Partners Inc.
• Board Member, Microdental Laboratories, Inc.
• Board Member, Children’s Dental Center
• BA Business Admin, San Diego State Univ.
• MBA Pepperdine Univ.

ssemmelmayer@millstreetequity.com

30 Years in Clinical Practice and Research

Experience and Education

• COO & Chief Scientific Officer, ADA Forsyth Institute 
• Stanford’s World Top 2% Scientists with Career Impact
• Expert-in-Residence, Harvard Innovations Lab
• Chairman, UCLA Department of Bioengineering
• Chairman, UCLA Advanced Prosthodontics
• Board Member, Rodo Medical, Inc, Phase Diagnostic, Inc
• PhD Massachusetts Institute of Technology 
• DDS Univ. of the Pacific
• Residency, Certificate in Prosthodontics Harvard Univ.

bwu@millstreetequity.com