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100+ Free Qatar DHP Endodontics Practice Questions

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Qatar DHP Orthodontics Qualifying Exam

Practice Questions100 questions

2026 Statistics

Key Facts: Qatar DHP Endodontics Exam

150 MCQs

The DHP Endodontics specialist exam has 150 single-best-answer multiple-choice questions

Qatar DHP - Qualifying Examination

3 hours

Candidates have 180 minutes to complete the 150 questions

Qatar DHP - Qualifying Examination

65%

Pass mark for all DHP specialist dentist qualifying examinations

Qatar DHP - Qualifying Examination

USD 285

DHP qualifying examination fee from 1 January 2026, paid to Prometric

eDentalPortal - QCHP DHP-MOPH exam fee update 2026

5 attempts

Candidates may sit the qualifying examination up to 5 consecutive times

Qatar DHP - Qualifying Examination

8 specialties

Endodontics is one of eight DHP specialist dentist qualifying examinations

Qatar DHP - Qualifying Examination

Prometric

The exam is delivered by Prometric on behalf of the DHP in English

Prometric - State of Qatar DHP (MOPH)

100

Free original endodontics practice questions in this bank

OpenExamPrep

The Qatar DHP Endodontics Specialist Qualifying Examination is a Prometric computer-based licensing test for endodontists who want to practise in Qatar. It has 150 single-best-answer multiple-choice questions delivered in English over 3 hours, with a 65% pass mark and up to 5 attempts allowed. The 2026 examination fee is USD 285, paid to Prometric at booking, with DHP evaluation and licensing fees charged separately. Content covers pulpal and periapical diagnosis, endodontic microbiology, root canal anatomy and access, cleaning, shaping and irrigation, obturation, emergencies, retreatment, surgical endodontics, dental trauma, regenerative endodontics and pharmacology. This 100-question bank provides original specialist-level multiple-choice practice modelled on that scope.

Sample Qatar DHP Endodontics Practice Questions

Try these sample questions to test your Qatar DHP Endodontics exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A patient reports sharp pain to cold that lingers for several minutes after the stimulus is removed, with no tenderness to percussion. Which pulpal diagnosis best fits?

A.Reversible pulpitis

B.Symptomatic irreversible pulpitis

C.Pulp necrosis

D.Previously treated

Explanation: Lingering pain after a thermal stimulus indicates that inflammation is irreversible. Because the patient is symptomatic, the AAE diagnosis is symptomatic irreversible pulpitis. The absence of percussion tenderness suggests the inflammation has not yet involved the periradicular tissues.

2A periapical radiolucency is found on a non-vital tooth that is asymptomatic, with no swelling or tenderness. Which periapical diagnosis is correct?

A.Symptomatic apical periodontitis

B.Asymptomatic apical periodontitis

C.Acute apical abscess

D.Normal apical tissues

Explanation: Asymptomatic apical periodontitis is inflammation and destruction of apical periodontium that is of pulpal origin, appears as an apical radiolucency, and does not produce clinical symptoms. The radiolucency on a non-vital, symptom-free tooth fits this category.

3Which microorganism is most frequently associated with persistent and secondary endodontic infections in previously treated teeth?

A.Streptococcus mutans

B.Enterococcus faecalis

C.Porphyromonas gingivalis

D.Lactobacillus acidophilus

Explanation: Enterococcus faecalis is a facultative gram-positive coccus that resists harsh environments, survives nutrient deprivation and high pH, and is the species most commonly recovered from teeth with persistent or secondary endodontic infection after root canal treatment.

4An electric pulp test (EPT) gives a positive response. What does this most reliably indicate?

A.The pulp is healthy

B.Vital nerve fibres are present

C.The blood supply is intact

D.The tooth has irreversible pulpitis

Explanation: The electric pulp test stimulates A-delta sensory nerve fibres, so a positive response indicates the presence of conducting vital nerve tissue. It does not assess blood supply or the histological health of the pulp.

5Which imaging modality provides three-dimensional information most useful for detecting an additional untreated canal or a missed MB2?

A.Conventional periapical radiograph

B.Bitewing radiograph

C.Cone-beam computed tomography (CBCT)

D.Panoramic radiograph

Explanation: CBCT provides volumetric, three-dimensional imaging without the superimposition of two-dimensional radiographs, making it the modality of choice for locating missed canals, assessing complex anatomy and evaluating resorption or root fractures.

6A patient presents with rapid-onset severe pain, swelling and a tooth that is non-responsive to pulp testing and very tender to percussion. Which diagnosis is most likely?

A.Reversible pulpitis

B.Acute apical abscess

C.Asymptomatic apical periodontitis

D.Condensing osteitis

Explanation: An acute apical abscess is an inflammatory reaction to pulpal infection and necrosis, characterised by rapid onset, spontaneous pain, tenderness to pressure, pus formation and often swelling. The non-vital pulp and acute symptoms fit this diagnosis.

7Which structure within the dentinal tubules is primarily responsible for the hydrodynamic transmission of pain during cold testing?

A.Movement of dentinal fluid

B.Direct stimulation of odontoblasts

C.Stimulation of cementoblasts

D.Activation of pulpal blood vessels

Explanation: The hydrodynamic theory states that thermal and osmotic stimuli cause rapid movement of fluid within the dentinal tubules, which deforms and stimulates A-delta nerve fibres at the pulp-dentine junction, producing sharp pain.

8A localised, well-defined apical radiopacity surrounding the root of a tooth with chronic low-grade pulpitis most likely represents:

A.Periapical cyst

B.Condensing osteitis

C.Cementoblastoma

D.Hypercementosis

Explanation: Condensing osteitis (sclerosing osteitis) is a localised increase in trabecular bone density in response to chronic low-grade pulpal inflammation. It appears as a diffuse radiopacity around the apex of the affected tooth.

9Which of the following best describes the role of bacterial biofilm in endodontic infection?

A.It increases antibiotic and antimicrobial susceptibility

B.It is a structured community that resists disinfection

C.It only forms outside the root canal system

D.It prevents bacterial communication

Explanation: An endodontic biofilm is a structured community of microorganisms embedded in an extracellular matrix adherent to canal walls. The matrix and altered phenotype make biofilm bacteria far more resistant to irrigants, intracanal medicaments and host defences than planktonic cells.

10A draining sinus tract is present on the buccal gingiva. What is the recommended method to identify the source tooth?

A.Apply heat to all adjacent teeth

B.Trace the tract with a gutta-percha point and take a radiograph

C.Prescribe antibiotics and review

D.Perform an immediate biopsy of the tract

Explanation: Inserting a size 25 or 30 gutta-percha point into the sinus tract and exposing a periapical radiograph traces the tract to its origin, reliably identifying the offending tooth even when the stoma is distant from the source.

About the Qatar DHP Endodontics Exam

The Qatar DHP Endodontics Specialist Qualifying Examination is the computer-based licensing test that internationally trained endodontists must pass to practise as endodontic specialists in the State of Qatar. It is one of eight DHP specialist dentist examinations and is administered by Prometric on behalf of the Department of Healthcare Professions within the Ministry of Public Health. The exam consists of 150 single-best-answer multiple-choice questions delivered in English over three hours, with a 65% cut score. Content spans pulpal and periapical diagnosis, endodontic microbiology, root canal anatomy and access, cleaning, shaping and irrigation, obturation, endodontic emergencies, non-surgical retreatment, surgical endodontics, management of traumatic dental injuries, regenerative endodontics and relevant pharmacology. Candidates must complete DHP evaluation and primary-source verification before booking, and may attempt the examination up to five consecutive times.

Assessment

150 single-best-answer multiple-choice questions covering the scope of endodontic practice, delivered by computer at a Prometric test centre in English.

Time Limit

3 hours (180 minutes) for the 150 multiple-choice questions.

Passing Score

65% is the pass mark for all DHP specialist dentist qualifying examinations, including Endodontics.

Exam Fee

USD 285 from 1 January 2026 (previously USD 238), paid to Prometric at booking; DHP evaluation, primary-source verification and licensing fees are charged separately. (Qatar Department of Healthcare Professions (DHP), Ministry of Public Health; delivered by Prometric)

Qatar DHP Endodontics Exam Content Outline

20%

Diagnosis and Endodontic Microbiology

Pulpal and periapical diagnostic categories (reversible and irreversible pulpitis, necrosis, symptomatic and asymptomatic apical periodontitis, acute and chronic apical abscess), pulp sensibility and vitality testing, percussion and palpation, radiographic and CBCT interpretation, and the microbiology of primary and persistent endodontic infections including Enterococcus faecalis and biofilm behaviour.

15%

Anatomy and Access Cavity Preparation

Root and canal morphology by tooth type, Vertucci canal configurations, MB2 and accessory or lateral canals, apical constriction and the cementodentinal junction, and conservative straight-line access cavity design that conserves pericervical dentine.

25%

Cleaning, Shaping and Irrigation

Working length determination with electronic apex locators and radiographs, glide path and patency, NiTi rotary and reciprocating instrumentation, crown-down technique, irrigant chemistry and roles of sodium hypochlorite, EDTA and chlorhexidine, irrigant activation, and prevention and management of ledges, transportation, perforations and instrument separation.

15%

Obturation and Restoration

Objectives and timing of obturation, gutta-percha with warm vertical and cold lateral compaction, sealer types including bioceramic and epoxy-resin sealers, single-cone technique, assessment of length and density of fill, the importance of the coronal seal, and definitive restoration of the endodontically treated tooth including cuspal coverage.

15%

Emergencies, Retreatment and Surgical Endodontics

Diagnosis and management of endodontic emergencies and interappointment flare-ups, incision for drainage, non-surgical retreatment and removal of gutta-percha, posts and separated instruments, and surgical endodontics including apicoectomy, root-end resection bevel, ultrasonic retropreparation and retrograde filling with MTA or bioceramics.

10%

Trauma, Regenerative Endodontics and Pharmacology

Classification and emergency management of traumatic dental injuries including avulsion, luxation and crown-root fractures, replantation and splinting, apexification with MTA and regenerative endodontic procedures for immature teeth, and pharmacology of analgesics, antibiotics and local anaesthetics relevant to endodontic pain and infection control.

How to Pass the Qatar DHP Endodontics Exam

What You Need to Know

Passing score: 65% is the pass mark for all DHP specialist dentist qualifying examinations, including Endodontics.
Assessment: 150 single-best-answer multiple-choice questions covering the scope of endodontic practice, delivered by computer at a Prometric test centre in English.
Time limit: 3 hours (180 minutes) for the 150 multiple-choice questions.
Exam fee: USD 285 from 1 January 2026 (previously USD 238), paid to Prometric at booking; DHP evaluation, primary-source verification and licensing fees are charged separately.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

Qatar DHP Endodontics Study Tips from Top Performers

1Anchor your revision in the AAE diagnostic terminology so you can match clinical scenarios to terms such as symptomatic irreversible pulpitis and chronic apical abscess quickly under exam conditions.

2Memorise the chemistry and concentrations of common irrigants: sodium hypochlorite dissolves organic tissue and kills bacteria, EDTA removes the inorganic smear layer, and the two should not be mixed in the canal.

3Review Vertucci canal configurations and high-frequency anatomy such as the MB2 canal in maxillary first molars, because anatomy questions reward precise morphology knowledge.

4Practise working length and apex locator questions, including the position of the apical constriction relative to the radiographic apex, as these recur across cleaning and shaping items.

5Study management of procedural errors and dental trauma to clear algorithms (for example avulsion replantation timing and storage media) so you can answer first-line management questions confidently.

6Do timed multiple-choice practice at roughly 70 to 75 seconds per question to match the pace of 150 questions in 180 minutes and build endurance for the full paper.

Frequently Asked Questions

How many questions are on the Qatar DHP Endodontics specialist exam?

The DHP Endodontics specialist qualifying examination has 150 single-best-answer multiple-choice questions delivered by computer at a Prometric test centre, with no separate clinical or viva component.

How long is the exam and what is the passing score?

The exam lasts 3 hours (180 minutes) for the 150 multiple-choice questions, and the pass mark for all DHP specialist dentist examinations, including Endodontics, is 65%.

Who administers the Qatar DHP Endodontics exam?

It is administered by the Department of Healthcare Professions (DHP) within Qatar's Ministry of Public Health and delivered by Prometric. It is one of eight DHP specialist dentist qualifying examinations.

How much does the DHP specialist exam cost in 2026?

From 1 January 2026 the DHP qualifying examination fee is USD 285 (previously USD 238), paid to Prometric at booking. DHP evaluation, primary-source verification and licensing fees are charged separately.

How many times can I attempt the exam?

Candidates may sit the DHP qualifying examination up to 5 consecutive times, regardless of the gap between attempts. Applicants must complete DHP evaluation and primary-source verification before booking.

Are these official DHP or Prometric exam questions?

No. These are original OpenExamPrep practice questions modelled on the published scope of the endodontics specialist examination. DHP and Prometric do not release their live exam questions.