Free ADC Written Questions and Answers

Question 1

When a second canal is located in mandibular incisors, it is most frequently found:

Accepted Answer

lingual of the main canal.

Answer

Explanation:
The frequent location of a second canal lingual to the main canal in mandibular incisors is influenced by embryological development, anatomical considerations, and the variability of the root canal system, underscoring the importance of thorough clinical assessment and treatment planning.

Question 2

In endodontics, which of the following perforations has the poorest prognosis?

Accepted Answer

Furcation area of a molar.

Answer

Explanation:
Perforations of molar furcation, particularly in endodontics, are associated with the poorest prognosis for several reasons:
Difficulty in Access and Instrumentation
Limited Healing Potential
Increased Risk of Reinfection
Inadequate Seal and Restoration
Periodontal Involvement

Question 3

Which of the following is/are true regarding a tooth filled with a formaldehyde-containing paste?

Accepted Answer

All of the above.

Answer

Explanation:
Statements a, b, c, and d are all factually correct and provide accurate information about the use and potential risks of formaldehyde-containing pastes in dentistry.

Question 4

When root canals are treated topically with antibiotics rather than with disinfectants:
1. A greater success rate results.
2. The same rules of mechanical preparation and filing must be observed.
3. The treatment may be completed in fewer appointments.
4. There is greater assurance that all microorganisms are destroyed.
5. There is a danger of sensitizing patients to antibiotics.

Accepted Answer

2,5

Answer

Explanation:
Statements 2 and 5 are correct as these statements accurately reflect the potential risks and considerations associated with the topical application of antibiotics in root canal treatment.

Question 5

The most appropriate management for a tooth with a history of previous trauma that now exhibits apical resorption is:

Accepted Answer

complete instrumentation and medication with intra-canal calcium hydroxide.

Answer

Explanation:
This option is the most appropriate initial management for a tooth with apical resorption following trauma. Complete instrumentation involves cleaning and shaping the root canal system to remove any necrotic or infected tissue. Medication with intracanal calcium hydroxide helps disinfect the canal and promote healing. Calcium hydroxide has antimicrobial properties and can also induce hard-tissue formation, aiding in the repair of apical resorption.

ADC - Australian Dental Council Practice Test

ADC - Australian Dental Council Practice Test

Free ADC Written Questions and Answers