Statutory framework and scope of dental hygiene practice
Connecticut dental hygiene jurisprudence begins with the question: where does authority come from, and where does it stop? The exam tests the Connecticut General Statutes, Chapter 379 (Dentistry), the Public Health Code regulations, and the role of the Department of Public Health (DPH) and the Connecticut State Dental Commission. A central concept is that scope of practice is set by law, not by an employer's office policy, custom, or a dentist's verbal instruction.
Core framework
- DPH licenses and renews dental hygienists; the Dental Commission advises on professional standards and participates in discipline.
- The practice of dentistry is broadly defined; dental hygiene is a licensed subset of services performed under the supervision levels authorized by statute and regulation.
- Typical hygiene services include assessment, prophylaxis, scaling and root planing, polishing, fluoride, sealants, radiographs, and patient education. Restorative, surgical, prescriptive, and diagnostic functions reserved to dentists are outside the hygienist's scope unless a specific expanded-function rule applies.
- A hygienist may not diagnose disease, prescribe drugs, or perform procedures requiring a license the hygienist does not hold.
Worked example
A patient points to a white patch and asks the hygienist, "Is this cancer?" The correct response is to record the finding objectively, avoid a diagnosis, and refer for a dental or medical evaluation. The hygienist may discuss risk factors and tobacco cessation, but stating a diagnosis would exceed the statutory scope even if the hygienist strongly suspects a lesion.
Traps that cost marks
- Treating "the dentist told me to" as authority to perform a prohibited procedure. Supervision does not expand the statutory scope.
- Confusing dental hygiene assessment with medical diagnosis.
- Assuming a procedure is allowed because another state allows it or because an online course certifies it. Connecticut law and regulations control.
- Overlooking that title protection and licensure are separate from clinical competence.
Exam focus
Know the hierarchy: statute, regulation, then office policy. When a question asks whether a hygienist may perform an act, identify the procedure, the patient setting, the supervision level, and whether a specific Connecticut authorization exists. If any element is missing, the safe answer is no until the legal authority is confirmed.