Practice Flashcards
7 cards from real DDS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Practice flashcards as text
A patient presents with a fractured maxillary central incisor involving the pulp. The tooth is fully developed with a closed apex. What is the most appropriate initial treatment?
Answer: Root canal treatment
A fully developed tooth with pulp exposure from trauma is best treated with root canal therapy to prevent infection and preserve the tooth.
When taking a full-mouth series of periapical radiographs, the paralleling technique is preferred over bisecting angle because it:
Answer: Produces less image distortion and more accurate representation
The paralleling technique minimizes geometric distortion because the film is parallel to the tooth's long axis and the X-ray beam is perpendicular to both.
A 35-year-old patient has a 5 mm probing depth at a mandibular molar with bleeding on probing and 3 mm of clinical attachment loss. How would you classify this finding?
Answer: Stage II periodontitis
Stage II periodontitis is characterized by clinical attachment loss of 3–4 mm and probing depths of 5–6 mm.
Which local anesthetic is CONTRAINDICATED in a patient with a documented allergy to para-aminobenzoic acid (PABA) derivatives?
Answer: Procaine
Procaine is an ester-type anesthetic that is metabolized to PABA, making it contraindicated in patients with PABA allergies.
During a crown preparation, the dentist notices the preparation has a 2-degree taper. What is the clinical consequence?
Answer: The preparation may lack adequate retention
Optimal taper for crown preparations is 10–20 degrees; a 2-degree taper makes seating the crown difficult and may impede full seating.
A patient undergoing extraction requires anticoagulation management. Their INR is 2.8. What is the best course of action?
Answer: Proceed with extraction using local hemostatic measures
Current evidence supports proceeding with dental extractions when INR is ≤3.5 using local hemostatic measures, avoiding systemic anticoagulation reversal.
Which cement is most appropriate for final cementation of a zirconia crown?
Answer: Resin cement
Resin cement provides optimal bond strength to zirconia, especially when used with appropriate surface treatment and primers.