FREE DANB Assisting with Endodontic Procedures Questions and Answers

Question 1

What is the primary function of a barbed broach in endodontics?

Accepted Answer

To remove the bulk of the pulp tissue

Answer

A barbed broach is a thin, flexible instrument with sharp barbs angled towards the handle. It is carefully inserted into the root canal to engage and remove the bulk of the pulpal tissue in one piece.

Question 2

The most common irrigant used to disinfect the canal system during root canal therapy is:

Accepted Answer

Sodium hypochlorite

Answer

Sodium hypochlorite (NaOCl), which is essentially household bleach in a diluted and purified form, is the most widely used irrigant. It is highly effective at dissolving necrotic tissue and killing bacteria within the complex root canal system.

Question 3

What is the term for the procedure of filling the root canal with a biocompatible material after it has been cleaned and shaped?

Accepted Answer

Obturation

Answer

Obturation is the final step of root canal treatment before the permanent restoration. It involves filling the prepared canal space with a sealing material, most commonly gutta-percha and a root canal sealer, to prevent re-infection.

Question 4

Which of the following are used to dry the root canal completely before it is filled?

Accepted Answer

Paper points

Answer

Paper points are sterile, absorbent paper cones that are sized to match the endodontic files. They are inserted into the canal to absorb any remaining moisture or irrigant, ensuring the canal is completely dry for optimal sealing during obturation.

Question 5

An endodontic diagnostic test that involves tapping on the incisal or occlusal surface of a tooth is called:

Accepted Answer

Percussion

Answer

The percussion test is used to determine if inflammation has extended to the periapical tissues (the area around the root tip). Pain upon tapping can indicate periapical periodontitis, which helps the dentist diagnose the source of a patient's pain.

DANB General Chairside Assisting (GC) Test Practice Test

DANB General Chairside Assisting (GC) Test Practice Test

FREE DANB Assisting with Endodontic Procedures Questions and Answers