NBDHE NBDHE Management of Special Needs Patients 4 — Questions and Answers
Question 1: A patient with a spinal cord injury at the C5 level presents for dental hygiene treatment. Which complication is a life-threatening emergency unique to this population?
- Orthostatic hypotension
- Autonomic dysreflexia (Correct answer)
- Phantom pain
- Muscle spasticity
Correct answer: Autonomic dysreflexia
Autonomic dysreflexia is a potentially fatal hypertensive emergency triggered by stimuli below the injury level, such as a full bladder or dental pain.
Question 2: Which of the following systemic conditions is most associated with hypercementosis and hypoplastic enamel in primary teeth?
- Hypothyroidism
- Vitamin D-resistant rickets (X-linked hypophosphatemia) (Correct answer)
- Type 2 diabetes
- Sickle cell anemia
Correct answer: Vitamin D-resistant rickets (X-linked hypophosphatemia)
X-linked hypophosphatemia causes defective mineralization, leading to enamel hypoplasia and dentinal tubule defects that predispose teeth to abscesses.
Question 3: A patient with schizophrenia takes an antipsychotic medication. Which oral side effect is most commonly associated with long-term antipsychotic use?
- Gingival hyperplasia
- Xerostomia and subsequent increased caries risk (Correct answer)
- Hairy tongue
- Angular cheilitis
Correct answer: Xerostomia and subsequent increased caries risk
Antipsychotic medications commonly cause xerostomia through anticholinergic effects, significantly elevating caries risk.
Question 4: When treating a pregnant patient in the third trimester, which positioning concern must be addressed to prevent a medical emergency?
- Keeping the patient fully upright throughout treatment
- Tilting the patient slightly to the left to avoid supine hypotensive syndrome (Correct answer)
- Placing the patient in full Trendelenburg position
- Using a head-down tilt to increase cerebral circulation
Correct answer: Tilting the patient slightly to the left to avoid supine hypotensive syndrome
Left lateral displacement relieves pressure of the gravid uterus on the inferior vena cava, preventing supine hypotensive syndrome.
Question 5: A patient with sickle cell disease presents with a dental abscess. Which consideration is most important before local anesthetic administration?
- Avoiding all local anesthetics
- Ensuring the patient is well-hydrated and not in a sickle cell crisis (Correct answer)
- Using anesthetics without vasoconstrictors only
- Consulting with the patient's hematologist before any dental treatment
Correct answer: Ensuring the patient is well-hydrated and not in a sickle cell crisis
Dental treatment should be deferred during sickle cell crisis; ensuring hydration and stable status minimizes the risk of triggering vaso-occlusive events.
Question 6: A patient with chronic obstructive pulmonary disease (COPD) requires dental hygiene treatment. Which modification is most important?
- Avoiding use of ultrasonic scalers entirely
- Positioning the patient semi-upright and minimizing use of water spray near the airway (Correct answer)
- Using high-volume oxygen during the entire appointment
- Scheduling only morning appointments
Correct answer: Positioning the patient semi-upright and minimizing use of water spray near the airway
Semi-upright positioning eases breathing in COPD patients, and minimizing aerosol/water spray reduces aspiration risk.
Question 7: Which of the following describes the dental management principle of 'least restrictive environment' when treating patients with intellectual disabilities?
- Always using general anesthesia for predictability
- Using the least invasive behavioral and clinical techniques that allow safe, effective treatment (Correct answer)
- Restricting treatment to emergency care only
- Requiring a legal guardian to make all decisions without patient input
Correct answer: Using the least invasive behavioral and clinical techniques that allow safe, effective treatment
Least restrictive environment means attempting basic behavior guidance, desensitization, and protective stabilization before escalating to sedation or general anesthesia.
NBDHE NBDHE Management of Special Needs Patients 4
A patient with a spinal cord injury at the C5 level presents for dental hygiene treatment.
Which complication is a life-threatening emergency unique to this population?