N.J. Stat. Ann. § 45:6-69.2

5. A licensed dental hygienist shall not perform any intra-oral service, other than administering preventive measures such as the application of fluorides, pit and fissure sealants as well as other recognized topical agents for the prevention of oral disease or associated discomfort and the detection of caries in a school setting, upon any living person who the dental hygienist reasonably believes has not received an examination by a duly licensed dentist within the immediately preceding 365-day period. After performing an assessment, a dental hygienist acting under supervision who reasonably believes that a person has either dental caries or some other medical or dental condition requiring diagnosis or treatment by a dentist shall so inform in writing, within seven days, the dentist who is providing the supervision, except if it appears that emergent care is indicated, the dental hygienist shall immediately notify the supervising dentist.