Section 332.069 - Practice of dentistry across state lines, restrictions - no license required, when1. Any person or entity not licensed to practice dentistry in Missouri shall not engage in the practice of dentistry, as defined in section 332.171, across state lines except as provided in this section.2. For purposes of this chapter, the "practice of dentistry across state lines" means: (1) The rendering of any written or otherwise documented dental opinion concerning the diagnosis or treatment of a patient within this state by a dentist located outside this state as a result of transmission of individual patient data by electronic, telephonic, or other means from within this state or any other state to such dentist or dentist's agent; or(2) The rendering of treatment to a patient within this state by a dentist located outside this state as a result of transmission of individual patient data by electronic, telephonic, or other means from within this state or any other state to such dentist or dentist's agent.3. A dentist located outside this state shall not be required to obtain a license in this state when: (1) A consultation is requested by a licensed dentist in this state who retains ultimate authority and responsibility for the diagnosis or treatment of a patient located within this state; and(2) The consultation request is not due to a contractual agreement to authorize or request consultations from a person or entity not licensed to practice dentistry in Missouri; or(3) Evaluating a patient or rendering an oral, written, or otherwise documented dental opinion when providing testimony or records for the purpose of any civil or criminal action before any judicial or administrative proceeding of this state or other forum in this state.