NBDHE NBDHE Dental Hygiene Care 4

Question 1

A patient's blood pressure reading is 158/96 mmHg at the beginning of the appointment. According to ADA guidelines, what is the most appropriate course of action?

Accepted Answer

Defer elective treatment and refer to physician

Answer

A reading of 158/96 mmHg is Stage 2 hypertension; elective dental treatment should be deferred and the patient referred for medical evaluation.

Question 2

Which local anesthetic has the longest duration of action and is most appropriate for lengthy periodontal procedures?

Accepted Answer

Bupivacaine 0.5% with 1:200,000 epinephrine

Answer

Bupivacaine provides the longest duration of pulpal and soft-tissue anesthesia among common dental local anesthetics.

Question 3

A patient on bisphosphonate therapy (oral, 5 years) requires oral hygiene instruction. Which complication should the clinician be most concerned with when treating this patient?

Accepted Answer

Medication-related osteonecrosis of the jaw (MRONJ)

Answer

MRONJ is a serious complication associated with bisphosphonate therapy, particularly with invasive procedures or poorly healing oral tissues.

Question 4

When applying fluoride varnish to an adult patient, what is the maximum recommended concentration of sodium fluoride?

Accepted Answer

2.26%

Answer

The standard professional fluoride varnish contains 5% NaF, which equals 2.26% fluoride ion by weight.

Question 5

A 7-year-old patient has an unerupted permanent maxillary central incisor 18 months after the contralateral incisor erupted. What is the most likely cause?

Accepted Answer

Supernumerary tooth (mesiodens)

Answer

A mesiodens (supernumerary tooth in the midline) is the most common cause of impacted or delayed eruption of a maxillary central incisor.

NBDHE Test Practice Test

NBDHE Test Practice Test

NBDHE NBDHE Dental Hygiene Care 4