AGD Endodontics and Pulpal Therapy Questions and Answers

Question 1

A 9-year-old patient presents with a deep carious lesion on tooth #8, a permanent incisor with an open apex.
A small, vital pulp exposure occurred during caries excavation.
The pulp is asymptomatic and shows normal responsiveness to cold testing.
Which procedure is most appropriate to encourage continued physiological root development?

Accepted Answer

Apexogenesis

Answer

Pulpotomy with formocresol

Answer

Apexification

Answer

Conventional root canal therapy

Question 2

A patient presents with sharp, fleeting pain on tooth #14 when drinking cold liquids. The pain subsides immediately upon removal of the stimulus. There is a deep amalgam restoration with a suspected open margin, but no spontaneous pain or pain on percussion. What is the most likely pulpal diagnosis?

Accepted Answer

Reversible pulpitis

Answer

Irreversible pulpitis

Answer

Normal pulp

Answer

Pulpal necrosis

Question 3

According to the International Association of Dental Traumatology (IADT) guidelines for an avulsed permanent tooth with a closed apex that has been replanted after 65 minutes of dry time, which of the following is an essential step in the management plan?

Accepted Answer

Initiate root canal therapy within 7-10 days.

Answer

Splint the tooth rigidly for 4-6 weeks.

Answer

Scrub the root surface with a brush before replantation.

Answer

Delay root canal treatment indefinitely to observe for pulpal revascularization.

Question 4

When performing a direct pulp cap on a permanent molar, which material has demonstrated a higher long-term success rate in maintaining pulp vitality and promoting the formation of a more predictable, high-quality dentin bridge compared to calcium hydroxide?

Accepted Answer

Mineral Trioxide Aggregate (MTA)

Answer

Zinc Oxide Eugenol (ZOE)

Answer

Glass Ionomer Cement

Answer

Resin-Modified Glass Ionomer (RMGI)

Question 5

A patient presents with a history of spontaneous, throbbing pain in the lower right quadrant that worsens when they lie down. Clinical testing reveals no response to cold or electric pulp testing on tooth #30, and the tooth is tender to percussion and palpation. This clinical presentation is most consistent with which pulpal and periapical diagnosis?

Accepted Answer

Pulpal Necrosis and Symptomatic Apical Periodontitis

Answer

Reversible Pulpitis and Normal Apical Tissues

Answer

Irreversible Pulpitis and Acute Apical Abscess

Answer

Irreversible Pulpitis and Asymptomatic Apical Periodontitis

Question 6

Which of the following endodontic sealers is known for its excellent biocompatibility, ability to set in the presence of moisture, and bioactive potential to stimulate hard tissue formation, but may have lower antibacterial properties compared to traditional zinc oxide-eugenol sealers?

Accepted Answer

Bioceramic (calcium silicate-based) sealer

Answer

Epoxy resin-based sealer

Answer

Zinc oxide-eugenol (ZOE) based sealer

Answer

Calcium hydroxide-based sealer