DHA General Dentistry Healthcare Professional Licensing Exam - Dubai, UAE

• Restorative Dentistry

  Caries diagnosis, cavity preparation, restorative materials, composites, amalgam, and restoration failures.

• Endodontics

  Pulp pathology, root canal treatment, access cavity preparation, working length determination, and obturation techniques.

• Periodontics

  Gingival and periodontal diseases, diagnosis, treatment planning, scaling and root planing, and maintenance therapy.

• Oral Surgery & Oral Medicine

  Tooth extractions, impacted teeth, oral infections, lesions, and management of common oral pathologies.

• Prosthodontics

  Fixed and removable prosthodontics, crowns, bridges, dentures, occlusion, and prosthetic complications.

• Orthodontics & Pediatric Dentistry

  Malocclusion basics, growth and development, pediatric dental conditions, preventive dentistry, and space management.

• Anesthesia & Pain Management

  Local anesthetics, nerve blocks, pain control, medical emergencies, and patient safety.

• Ethics & Patient Education

  Professional ethics, informed consent, patient communication, infection control, and legal responsibilities.

• Oral Medicine and Oral Surgery694 questions
• Orthodontics and Pediatric Dentistry284 questions
• Restorative Dentistry252 questions
• Anesthesia and Pain Management246 questions
• Periodontics209 questions
• Endodontics174 questions
• Dental Ethics171 questions

1. Question 1

   A deep carious lesion approaches the pulp in a vital tooth with no signs of irreversible pulpitis. What is the most appropriate pulp protection material?

   1. ACalcium hydroxide
   2. BZinc oxide eugenol
   3. CGlass ionomer cement
   4. DComposite resin
   Show answer

   Answer: A. Calcium hydroxide

   Calcium hydroxide promotes reparative dentin formation and is commonly used for pulp protection in deep cavities with a vital pulp.

2. Question 2

   A 35-year-old patient presents with spontaneous, lingering pain in a lower molar that worsens at night. Thermal testing produces an exaggerated and prolonged response. The tooth is tender to percussion, and radiographs show no periapical radiolucency. What is the most likely diagnosis?

   1. AReversible pulpitis
   2. BIrreversible pulpitis
   3. CPulp necrosis
   4. DAcute apical abscess
   Show answer

   Answer: B. Irreversible pulpitis

   Lingering pain to thermal stimuli and spontaneous pain are classic signs of irreversible pulpitis. The absence of periapical radiolucency suggests the pulp is still vital, ruling out pulp necrosis or apical abscess.

3. Question 3

   A 50-year-old patient presents with generalized bleeding on probing, pocket depths of 5–6 mm, and radiographic evidence of horizontal bone loss. The patient has no systemic conditions and maintains fair oral hygiene. What is the most appropriate initial treatment?

   1. AGingivectomy
   2. BScaling and root planing
   3. CPeriodontal flap surgery
   4. DTooth extraction
   Show answer

   Answer: B. Scaling and root planing

   Scaling and root planing is the first-line, non-surgical treatment for chronic periodontitis. Surgical intervention is considered only if non-surgical therapy fails to improve periodontal health.

4. Question 4

   A patient develops dry socket 3 days after extraction. MOST likely contributing factor?

   1. APoor suturing
   2. BSmoking
   3. CAntibiotic use
   4. DHigh salivary flow
   Show answer

   Answer: B. Smoking

   Smoking dislodges the blood clot and delays healing.

5. Question 5

   Orthodontic tooth movement occurs due to?

   1. ABone deposition only
   2. BPDL hyalinization
   3. CBone remodeling
   4. DEnamel resorption
   Show answer

   Answer: C. Bone remodeling

   Controlled bone resorption and deposition occur around the periodontal ligament.

6. Question 6

   Primary management of pericoronitis includes?

   1. AImmediate extraction
   2. BLocal irrigation and hygiene
   3. CSurgical flap
   4. DSystemic steroids
   Show answer

   Answer: B. Local irrigation and hygiene

   Initial treatment is local debridement and hygiene.

7. Question 7

   Sodium hypochlorite in endodontics is MOST valued for its ability to?

   1. ALubricate canal
   2. BDissolve organic tissue
   3. CRemove smear layer
   4. DKill spores
   Show answer

   Answer: B. Dissolve organic tissue

   It dissolves necrotic tissue and has antimicrobial action.

8. Question 8

   Which denture error MOST affects speech?

   1. AIncorrect shade
   2. BIncreased vertical dimension
   3. CUnderextended flange
   4. DPolished surface contour
   Show answer

   Answer: B. Increased vertical dimension

   Excess vertical dimension alters phonetics.

9. Question 9

   Which nerve is anesthetized during inferior alveolar nerve block?

   1. ALingual nerve
   2. BMental nerve
   3. CInferior alveolar nerve only
   4. DInferior alveolar and lingual nerves
   Show answer

   Answer: D. Inferior alveolar and lingual nerves

   IAN block anesthetizes both nerves in most techniques.

10. Question 10

    Consent obtained after sedation is considered?

    1. AValid
    2. BImplied
    3. CInvalid
    4. DVerbal only
    Show answer

    Answer: C. Invalid

    Patient must have full capacity when consent is given.

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