1. (a) Under general supervision, as defined in Den 101.12:

   1. (1) Perform all the duties a dental assistant may perform under Den 401.01 and all the duties a certified dental assistant and graduate dental assistant may perform under Den 401.02;
   2. (2) Perform complete oral prophylaxis as appropriate, including the removal of subgingival biofilm, its by-products, and biofilm retentive calculus deposits by debridement, scaling, and root planing;
   3. (3) Collect and assess medical and dental histories, including documentation of existing and relevant systemic conditions;
   4. (4) Perform extraoral or intraoral assessment, including oral cancer screening, and document all findings;
   5. (5) Assess the hard tissue and document all findings of existing conditions and deviations from normal;
   6. (6) Assess periodontal structures and conditions and document all findings;
   7. (7) Assess occlusion and document all findings;
   8. (8) Make a complete and accurate recording of all assessment findings regarding dental hygiene services relevant to patient care;
   9. (9) Perform dental radiography;
   10. (10) Perform comprehensive collection of patient data to identify the physical and oral health status;
   11. (11) Assess and analyze data collected and determine the patient’s dental hygiene treatment needs that a dental hygienist is qualified and licensed to treat;
   12. (12) Establish a dental hygiene care plan that reflects the realistic goals and treatment strategies to facilitate optimal oral health;
   13. (13) Implement a dental hygiene care plan and evaluate dental hygiene treatment for effectiveness;
   14. (14) Place prescribed periodontal antimicrobial agents;
   15. (15) Apply topical preventive and anesthetic agents, including silver diamine fluoride; and
   16. (16) The administration, prescription, and dispensing of a fluoride supplement, topically applied fluoride, and chlorhexidine gluconate oral rinse;
2. (b) Under indirect supervision as defined in Den 101.14, in-office tooth whitening;

3. (c) Under direct supervision as defined in Den 101.11:

   1. (1) Remove excess restorative material extending beyond the margins of the preparation, to include the use of a low speed hand piece, if necessary;
   2. (2) Place retraction cord;
   3. (3) Place and remove periodontal dressings;
   4. (4) Place temporary restorations, not to include temporary crowns and bridges, unless qualified pursuant to Den 302.05;
   5. (5) Make cytological smears;
   6. (6) Perform brush biopsies;
   7. (7) Make final impressions;
   8. (8) Place amalgam prior to condensing by a dentist;
   9. (9) Place cavity liners and bases;
   10. (10) Remove temporary restorations, not to include the use of rotary instruments;
   11. (11) Cement bands and bond brackets;
   12. (12) Perform orthodontic duties, if qualified pursuant to Den 302.05;
   13. (13) Fabricate provisional crown and bridge restorations, if qualified pursuant to Den 302.05;
   14. (14) Administer local anesthesia, if qualified pursuant to Den 302.05;
   15. (15) Monitor nitrous oxide inhalation administration, if qualified pursuant to Den 302.05; and
   16. (16) Administer nitrous oxide if qualified pursuant to Den 302.05; and

4. (d) Under public health supervision as defined in Den 101.24:

   1. (1) Collect and assess medical and dental histories, including preliminary inspection of the oral cavity and surrounding structures, and periodontal probing and charting;
   2. (2) Perform complete oral prophylaxis as appropriate, including the removal of calciferous deposits and the removal of subgingival accretions and stains by scaling and root planing;
   3. (3) Apply topical fluoride, including fluoride varnish;
   4. (4) Instruct in oral hygiene techniques;

   5. (5) Administer fluoride rinse programs as follows:

      1. a. Obtain consent from a legally responsible adult;
      2. b. Train personnel in storage, dosage, safety, administration, and rinsing procedures; and
      3. c. Have a legally authorized physician, dentist, advanced practice registered nurse, or physician assistant pursuant to RSA 318:42, II dilute concentrated fluoride solutions prior to dispensing;

   6. (6) Place sealants when authorized by a dentist with an active license provided that:

      1. a. Written informed consent shall be obtained from the patients’ legal guardian; and
      2. b. The supervising dentist and the hygienist shall be responsible for the sealants being indicated and correctly placed; and
   7. (7) Make impressions, fabricate and deliver athletic mouthguards.

Source. #287.2, eff 1-17-74; ss by #2981, eff 2-28-85; ss by #4298, eff 7-28-87; ss by #5110, eff 4-4-91; amd by #5722, eff 10-15-93; ss by #6909, eff 12-9-98; amd by #7778, eff 10-10-02; amd by #7929, eff 8-6-03; amd by #7970, eff 10-10-03; amd by #8100, eff 6-11-04; amd by #8260, eff 1-19-05; amd by #8584, eff 3-16-06; ss by #8838, eff 3-9-07; amd by #9256, eff 9-10-08; amd by #9408-B, eff 3-10-09; amd by #9633, eff 1-7-10; amd by #9778, eff 9-3-10; amd by #9973, eff 8-9-11; amd by #10437, eff 10-8-13; ss by #10824, eff 5-6-15; ss by #10991, eff 12-9-15; ss by #12428, eff 12-6-17; ss by #13021, eff 4-9-20