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Role standards

Dental and vision

Dental hygienist

What a newly licensed dental hygienist must do safely: clear the medical history before any instrument goes in, assess and treat periodontal disease and tell the dentist what they found, keep an honest record, teach patients so they can act on it, and stay inside the licence. Drawn from ADEA's entry-level competencies for the allied dental professions and the National Board Dental Hygiene Examination.

Practice this assessmentHire for this role
Expectations
10
Safety red lines
4
Sources
3
Version
1

Built from American Dental Education Association, Joint Commission on National Dental Examinations, American Dental Hygienists' Association. Reviewed by clinicians, last on .

01What the role is measured on#

Every verdict is made of the same five dimensions. Each is scored on its own, so a candidate sees where they are strong and where to work.

  • Clinical skillsThe hands-on and judgement work of the role: recognising what matters, acting in the right order, and knowing when something cannot wait.
  • Workflow and toolsGetting the work done in a real setting: the systems, records, equipment and handoffs the role runs on, used correctly and on time.
  • Patient communicationHow the role talks with patients, families and colleagues: listening, explaining plainly, and confirming what was understood.
  • Compliance and safetyThe rules that protect people: privacy, consent, infection control, reporting duties and the safety checks the role is accountable for.
  • Role knowledgeKnowing the job itself: what the role is responsible for, where its scope ends, and who to bring in when it does.

02What a ready hire does#

What a competent dental hygienist does on day one, dimension by dimension.

Clinical skills

  • Performs a complete periodontal assessment, classifies what they find, provides non-surgical periodontal therapy under the dentist's diagnosis, re-evaluates, and escalates disease that does not respond.
  • Takes diagnostic-quality images the dentist has prescribed, using selection criteria and ALARA, corrects technique errors, and recognises findings to bring to the dentist.

Workflow and tools

  • Documents assessment findings, the dental hygiene diagnosis, consent, anaesthetic, services, education and the next step at the time of care, and corrects the record openly.
  • Turns assessment data into dental hygiene diagnoses and a sequenced care plan that fits within the dentist's overall treatment plan.

Patient communication

  • Teaches each patient the few self-care steps that matter most for their disease, in a way they can do, and confirms they can do it.
  • Uses open questions, reflection and the patient's own reasons to support a change in tobacco use or self-care, without lecturing.

Compliance and safety

  • Reviews the medical history, medications and vital signs at every visit and resolves anything that makes treatment unsafe before an instrument goes in.
  • Administers local anaesthetic and preventive or therapeutic agents only where state law and the dentist's order allow, within safe doses, and documents exactly what was given.

Role knowledge

  • Practises within the state's dental hygiene scope and supervision rules, and refers findings and decisions that belong to the dentist or another professional.
  • Recognises a medical emergency in the chair, starts basic life support measures, calls the dentist and 911 as needed, and knows where the kit is and how to use it.

03Safety red lines#

Any one of these keeps a candidate from Ready Day One, whatever the rest of the score. They are published so nobody meets them for the first time in the assessment.

  • Would give a routine prophylaxis to a patient whose findings show periodontitis - attachment loss, bone loss or pockets of five millimetres or more with bleeding - without recording it, bringing it to the dentist, or telling the patient.

    Undiagnosed periodontitis progresses silently to tooth loss while the patient believes they are being treated, and failure to diagnose periodontal disease is among the most common claims against dental offices.

  • Would begin instrumentation without reviewing the medical history and vital signs, or despite a finding that needs action first - a blood pressure of one hundred and eighty over one hundred and ten or higher, a required antibiotic prophylaxis not taken, or symptoms of an acute medical problem - without stopping and consulting the dentist.

    Scaling causes bleeding and bacteraemia, and treating through a hypertensive crisis or an unprotected endocarditis risk can precipitate a stroke, a cardiac event or a life-threatening infection.

  • Would record probing depths, findings or services that were not performed, backdate an entry, or alter an entry to hide what happened.

    A false chart misleads every clinician who reads it about the patient's disease, supports a false claim for payment, and is professional misconduct.

  • Would diagnose caries or other disease and tell the patient the restorative treatment they need, prescribe a medication, give local anaesthetic or nitrous oxide without the state permit, or treat a patient without the dentist examination or supervision the state requires.

    The patient receives a diagnosis or treatment from someone not licensed to give it, which can be wrong and unsafe, and the hygienist and the dentist both breach the practice act.

04Outside the role#

Knowing where the role stops is part of the standard. Going past it is not extra credit.

  • Does not make the dental diagnosis of caries, pathology or restorative need, or tell the patient what restorative or surgical treatment they require.Records and reports suspected findings to the dentist, and tells the patient the dentist will examine and explain.
  • Does not prescribe medications, unless their state expressly authorises a hygienist to prescribe a defined agent.Recommends over-the-counter aids within scope and asks the dentist to prescribe when a prescription is needed.
  • Does not administer local anaesthetic or nitrous oxide without the state permit and the supervision level the state requires for it.Asks the dentist to anaesthetise, or schedules the patient when a permitted clinician is available.
  • Does not treat outside the supervision model the state sets, such as seeing a new patient without a dentist's examination where one is required.Checks the state rules for their setting and reschedules or arranges the examination first.
  • Supervision, anaesthesia and prescribing rules vary widely between US states and other countries.Works to their own regulator's scope, and to this standard's safety lines everywhere.

05How it is assessed#

  • A spoken assessment

    An examiner talks the candidate through realistic cases from this role, and follows up the way a senior colleague would.

  • Five dimensions

    Each answer is read against the expectations above and rated on the same four-level scale.

  • The 70 bar

    Every scorecard shows the score against 70, overall and for each dimension, with the reason for the verdict.

  • Safety first

    Crossing one of the safety red lines holds a pass back, however strong the rest was.

The four levels

  1. Not yet
  2. Developing
  3. Proficient
  4. Exemplary
How a verdict is made

06Sources and review#

Drawn from the certification frameworks and practice standards below, and reviewed by clinicians. Version 1, last reviewed .

Cited as sources. Not an endorsement by the organizations named.

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