ORE Part 1 Clinical Dentistry

Question 1

A 45-year-old patient presents with a deep carious lesion on the mandibular first molar approaching the pulp. The tooth is vital with no spontaneous pain. What is the most appropriate treatment?

Accepted Answer

Indirect pulp capping with calcium hydroxide and restoration

Answer

Extraction and implant placement

Answer

Direct composite restoration without pulp protection

Answer

Immediate root canal treatment

Question 2

Which clinical sign best differentiates irreversible pulpitis from reversible pulpitis?

Accepted Answer

Spontaneous pain that lingers after stimulus removal

Answer

Pain on cold stimulus that resolves within seconds

Answer

Sensitivity to sweet foods only

Answer

Pain exclusively on biting pressure

Question 3

A patient presents with a painless, fluctuant swelling on the buccal mucosa adjacent to a non-vital upper premolar. What is the most likely diagnosis?

Accepted Answer

Periapical abscess with sinus tract

Answer

Periodontal abscess

Answer

Mucocele

Answer

Salivary gland tumour

Question 4

What is the recommended fluoride concentration in toothpaste for a 4-year-old child in the UK according to current guidelines?

Accepted Answer

1350–1500 ppm

Answer

500 ppm

Answer

1000 ppm

Answer

No fluoride toothpaste recommended

Question 5

Which type of hypersensitivity reaction is most commonly associated with local anaesthetic allergy in dentistry?

Accepted Answer

Type IV (delayed/contact)

Answer

Type I (immediate/anaphylaxis)

Answer

Type II (cytotoxic)

Answer

Type III (immune complex)

Question 6

A 30-year-old patient requires extraction of a lower wisdom tooth. The inferior alveolar nerve block fails to achieve adequate anaesthesia. What is the most likely reason?

Accepted Answer

Accessory innervation from the mylohyoid nerve

Answer

The patient has a high pain threshold

Answer

The anaesthetic solution has expired

Answer

The patient consumed caffeine before the appointment