Dental hygienists.

Amends the definition of "prescriptive supervision" concerning circumstances under which a licensed dentist is not required to be present in a facility when patient care is provided by a dental hygienist. Restates restrictions on use of a laser by a dental hygienist. Provides that a dental hygienist may administer topical local dental anesthetics, other than nitrous oxide or similar analgesics, without supervision. Prescribes requirements for administration of nitrous oxide by a dental hygienist or a dental assistant. Provides, for purposes of regulation of dental hygienists, that a person, other than a dentist, a physician, or a dental assistant who administers nitrous oxide is considered to be practicing dental hygiene. Removes a limitation on the number of credit hours earned for certification in basic life support that may be applied to a dental hygienist's continuing education requirement. Provides that there is no limit on the number of credit hours a dental hygienist may earn for completion of an approved course offered by another dental hygienist.