N.J. Stat. § 45:6-12
No corporation shall practice or continue to practice, offer or undertake to practice, or hold itself out as practicing dentistry. No person shall practice or continue to practice dentistry as an officer, agent or employee of any corporation, or under the name of any corporation. No person shall practice or continue to practice dentistry under any firm name or trade name or under any name other than his true name, but nothing herein contained shall prohibit the practice of dentistry by a partnership under a firm name containing nothing but the surname of every member of the partnership, and that nothing herein contained shall prohibit a licensed dentist from practicing under his own name or under a firm name containing only the surnames of each member of such firm. Every person or corporation, violating any of the foregoing provisions of this section shall be subject to a penalty of three hundred dollars for the first offense and six hundred dollars for the second and each subsequent offense.
Every person practicing dentistry under a firm name as herein authorized and every person practicing dentistry or as an employee of another shall cause his name to be conspicuously displayed and kept in a conspicuous place at the entrance of the place where such practice shall be conducted, and any person who shall neglect to cause his name to be displayed as herein required, shall be liable to a penalty of one hundred dollars.
N.J.S. § 45:6-12