Which of the following professionals can provide dental treatment without a license?

All individuals engaging in the practice of dentistry or performing duties that fall under the definition of dental treatment are required to hold a valid dental license to ensure public safety and the delivery of quality care. This requirement protects patients from unqualified individuals performing potentially harmful procedures.

While a dental receptionist plays a crucial role in managing the administrative aspects of a dental practice, their duties do not involve performing any clinical dental treatments. Similarly, while a dental lab technician is essential for creating dental appliances and restorations, they also do not provide direct patient care or treatment without proper licensure.

A dental student, though not fully licensed, may perform certain procedures under the direct supervision of a licensed dentist as part of their educational curriculum. However, this allowance does not equate to providing treatment independently or without supervision. Thus, the correct understanding is that no professional can deliver dental treatment without a proper license.