1. A. The following intraoral functions may be performed in the practice of dental hygiene:

   1. (1) Preliminary dental examination;

   2. (2) Dental prophylaxis, which includes:

      1. (a) Scaling and root planing; or
      2. (b) Polishing a tooth or a restoration;
   3. (3) Placing and removing perio dressings, including an initial dressing;
   4. (4) Placing sealants;
   5. (5) Taking impressions for study models, custom fluoride trays, or athletic mouth guards;
   6. (6) Exposing a dental x-ray;
   7. (7) Performing a brush biopsy;
   8. (8) Placing subgingival medicaments;
   9. (9) Cementing temporary crowns or restorations; and
   10. (10) Performing any duty that a dental assistant, or a dental assistant who is listed on the roster of dental assistants recognized as qualified in orthodontics or general duties, may perform.
2. B. A dental hygienist may administer local anesthesia by infiltration and local anesthesia by inferior alveolar nerve block only after Board recognition as provided in this chapter.
3. C. A dental hygienist may perform manual curettage in conjunction with scaling and root planning only after meeting the requirements of Regulation .12 of this chapter.
4. D. A dental hygienist may administer nitrous oxide only after Board recognition as provided in this chapter.

Authority: Health Occupations Article, §§4-205, 4-206.1, 4-206.2 4-206.3, 4-206.4, and 12-101, Annotated Code of Maryland

Effective date: November 18, 1977 (4:24 Md. R. 1806)

Chapter revised effective April 22, 1985 (12:8 Md. R. 803)

Regulation .01-1 adopted effective May 31, 2010 (37:11 Md. R. 765)

Regulation .02 amended effective January 21, 2002 (29:1 Md. R. 23); May 31, 2010 (37:11 Md. R. 765)

Regulation .03 amended effective January 21, 2002 (29:1 Md. R. 23); May 31, 2010 (37:11 Md. R. 765)

Regulations .04—.16 adopted effective May 31, 2010 (37:11 Md. R. 765)

Regulations .01—.16 repealed and new Regulations .01—.28 adopted effective April 29, 2013 (40:8 Md. R. 724)

Chapter revised effective November 24, 2016 (43:23 Md. R. 1279)

Chapter revised effective September 5, 2022 (49:18 Md. R. 819)