45:6-14.  Construction of chapter as to unlicensed persons and as to physicians This chapter shall not be construed to prohibit an unlicensed person from performing mechanical work upon inert matter in a dental office or laboratory; nor to prohibit a duly licensed physician from treating the diseases of the mouth or performing operations in oral surgery;  and nothing in this chapter shall be construed to permit the performance of dental operations by any unlicensed person under cover of the name of a registered practitioner.