106+ Free ie-diploma-primary-care-dentistry Practice Questions

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2026 Statistics

Key Facts: ie-diploma-primary-care-dentistry Exam

108

Total Exam Questions

RCSI Regulations

3 hours

Exam Time Limit

RCSI Regulations

~€800

Examination Fee

RCSI 2026 Calendar

Direct Entry

to MFD Part 2

RCSI Faculty of Dentistry

SI 256

Irish Radiation Law

HIQA Patient Protection

Type B

Vacuum Autoclave

Infection Control Standards

The Dip PCD RCSI is a 3-hour exam with 75 MCQs and 33 SBAs administered online by the RCSI. It assesses clinical skills, patient safety, radiation protection, and ethical practice. It serves as the primary stepping stone to the Membership of the Faculty of Dentistry (MFD RCSI) credential.

Sample ie-diploma-primary-care-dentistry Practice Questions

Try these sample questions to test your ie-diploma-primary-care-dentistry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 106+ question experience with AI tutoring.

1A 28-year-old patient presents with lingering pain to hot and cold in the lower left first molar. The pain persists for several minutes after the thermal stimulus is removed. Radiographically, there is deep caries extending close to the pulp chamber. What is the most likely pulpal diagnosis?

A.Reversible pulpitis

B.Symptomatic irreversible pulpitis

C.Asymptomatic irreversible pulpitis

D.Pulp necrosis

Explanation: Symptomatic irreversible pulpitis is characterized by sharp, lingering pain that persists after the thermal stimulus is removed. Reversible pulpitis displays transient pain that resolves immediately upon stimulus removal. Pulp necrosis would not respond to cold or hot stimuli, although liquefactive necrosis can occasionally respond to heat. Asymptomatic irreversible pulpitis involves a pulp that is vital but incapable of healing, yet does not exhibit active clinical symptoms.

2During a periodontal assessment, a patient exhibits generalized bleeding on probing, pocket depths ranging from 1 to 3 mm, and no clinical attachment loss (CAL). How should this condition be classified according to the 2017 World Workshop classification system?

A.Gingival health on an intact periodontium

B.Plaque-induced gingivitis on an intact periodontium

C.Stage I, Grade A periodontitis

D.Gingivitis on a stable, reduced periodontium

Explanation: Plaque-induced gingivitis on an intact periodontium is characterized by bleeding on probing (BOP >= 10%) without clinical attachment loss (CAL) or bone loss. Gingival health would require a BOP rate of less than 10%. Periodontitis Stage I requires clinical attachment loss at the site of greatest loss. A reduced periodontium implies prior loss of clinical attachment due to periodontitis or non-periodontitis causes, which is not present here.

3Which of the following clinical techniques is most effective in minimizing polymerization shrinkage stress in deep composite resin restorations?

A.Placing the composite in a single bulk increment to ensure uniformity

B.Using incremental placement in oblique layers to reduce the C-factor

C.Increasing the intensity of the curing light to speed up polymerization

D.Using a high-viscosity packable composite without a flowable liner

Explanation: Incremental placement in oblique layers reduces the configuration factor (C-factor), which is the ratio of bonded to unbonded surfaces. Oblique increments avoid connecting opposing walls of the cavity preparation, thereby minimizing shrinkage stress. Bulk placement increases the C-factor and stresses the tooth-restoration interface. Higher curing light intensity accelerates polymerization, which can increase stress rather than relieve it. Flowable liners can act as a stress-absorbing buffer layer.

4An 8-year-old child presents with a traumatized maxillary central incisor that is vital but has an open apex. There is an exposed pulp chamber from a complicated crown fracture that occurred 2 hours ago. Which treatment is indicated to promote root end development?

A.Pulpectomy followed by calcium hydroxide apexification

B.Apexogenesis (partial pulpotomy)

C.Direct pulp capping with mineral trioxide aggregate (MTA)

D.Immediate root canal treatment with gutta-percha obturation

Explanation: Apexogenesis (such as a Cvek partial pulpotomy) is indicated for vital, immature permanent teeth with open apices to allow continued physiological development of the root length and wall thickness. Pulpectomy followed by apexification is indicated if the pulp becomes non-vital, which stops normal root formation. Direct pulp capping is generally reserved for very small, clean exposures and is less predictable than a partial pulpotomy in trauma cases. Obturation with gutta-percha is impossible and contraindicated in a root with a wide-open, divergent apex.

5Which anatomical landmark is the primary support area for a mandibular complete denture?

A.Alveolar ridge crest

B.Buccal shelf

C.Retromolar pad

D.Sublingual fossa

Explanation: The buccal shelf is the primary stress-bearing (support) area for a mandibular complete denture because of its broad surface area and cortical bone structure, which is highly resistant to resorption. The alveolar ridge crest in the mandible consists of cancellous bone and undergoes rapid resorption, making it a secondary support area. The retromolar pad is an important peripheral seal landmark but not the primary support area. The sublingual fossa is related to denture retention and border extension.

6What is the primary mechanism of adhesion of glass ionomer cement (GIC) to tooth structure?

A.Micromechanical interlocking through resin tags

B.Chemical bonding via ionic interaction with calcium ions in hydroxyapatite

C.Covalent bonding to collagen fibers in dentin

D.Frictional resistance from surface roughness

Explanation: Glass ionomer cement bonds chemically to the tooth structure. Carboxyl groups of the polyacrylic acid react with calcium ions in the hydroxyapatite of enamel and dentin to form ionic bonds. Micromechanical interlocking is the primary mechanism for resin composites using acid-etch techniques. GIC does not bond covalently to collagen, and frictional resistance is a mechanical retentive factor rather than a true adhesive mechanism.

7A patient experiences sudden, severe pain, localized swelling, and profuse bleeding through the root canal during instrumentation of a maxillary canine. The clinician suspects a sodium hypochlorite (NaOCl) accident. What is the immediate first-line management?

A.Suture the root canal orifice and prescribe systemic corticosteroids

B.Perform immediate surgical incision and drainage through the buccal mucosa

C.Copiously irrigate the canal with sterile saline, reassure the patient, and control pain with local anesthetics

D.Obturate the root canal immediately to prevent further extrusion

Explanation: Immediate management of a NaOCl accident involves stopping the irrigation, irrigating the canal with normal saline to dilute the NaOCl, reassuring the patient, and administering long-acting local anesthesia for immediate pain control. Systemic antibiotics and analgesics are prescribed, and cold compresses are applied for the first 24 hours, followed by warm compresses. Immediate surgical incision is not indicated unless there is secondary infection or compartment syndrome. Obturation should be delayed until symptoms subside.

8Which clinical feature is most useful in differentiating a periodontal abscess from an acute pulpal/periapical abscess?

A.Presence of localized swelling and pain

B.Tooth response to pulp vitality testing

C.Tenderness to percussion

D.Mobility of the affected tooth

Explanation: Pulp vitality testing is the key diagnostic tool. A tooth with a periodontal abscess is typically vital, whereas a tooth with a periapical abscess is non-vital (pulpal necrosis). Localized swelling, pain, tenderness to percussion, and tooth mobility can occur in both conditions, making them unreliable as individual diagnostic differentiators without pulp testing.

9A crown preparation margin is placed 1.0 mm coronal to the alveolar crest. What is the most likely long-term periodontal consequence of this restoration?

A.Gingival recession and root surface exposure

B.Chronic gingival inflammation, attachment loss, and bone resorption due to biological width infringement

C.Formation of a periodontal pocket without bone loss

D.Hyperkeratosis of the marginal gingiva

Explanation: The biological width (now referred to as the supracrestal tissue attachment) typically requires about 2.0 mm of space (junctional epithelium + connective tissue attachment) coronal to the alveolar crest. Placing a restoration margin within 1.0 mm of the crest infringes upon this width, leading to chronic inflammation, localized attachment loss, and osteoclastic bone resorption as the body attempts to re-establish the space. Recession may occur, but bone loss is the classic pathological consequence. Hyperkeratosis is not a typical response.

10What is the primary clinical advantage of the corrosion products formed by dental amalgam restorations over time?

A.They increase the compressive strength of the amalgam

B.They seal the microgap at the tooth-restoration interface, reducing microleakage

C.They prevent the accumulation of dental plaque on the restoration surface

D.They release fluoride to protect the surrounding enamel

Explanation: Over time, dental amalgam undergoes corrosion. Tin-rich corrosion products (such as tin oxides and sulfides) accumulate in the microgap between the tooth and the restoration, effectively sealing the margins and reducing microleakage and secondary caries. Corrosion does not increase compressive strength, prevent plaque accumulation, or release fluoride.

About the ie-diploma-primary-care-dentistry Exam

The Diploma of Primary Care Dentistry (Dip PCD RCSI) is a highly respected postgraduate examination that validates a dentist's clinical competence, knowledge, and reasoning in all aspects of general dental practice. It focuses heavily on clinical dentistry, patient management, radiology, oral surgery, restorative dentistry, therapeutics, and professional standards. Passing this exam awards the Dip PCD RCSI post-nominal and grants direct entry into Part 2 of the prestigious MFD RCSI examination.

Assessment

3-hour written exam consisting of 75 True/False MCQs and 33 Single Best Answer (SBA) questions

Time Limit

3 hours

Passing Score

Standard-set (criterion-referenced)

Exam Fee

~€800 (Faculty of Dentistry, Royal College of Surgeons in Ireland (RCSI))

ie-diploma-primary-care-dentistry Exam Content Outline

20%

Restorative Dentistry

Endodontics, prosthodontics, periodontics, operative dentistry, and dental biomaterials.

18%

Clinical Dentistry

Pediatric dental trauma, caries diagnosis (ICDAS), tooth wear classification, special care dentistry, and interceptive orthodontics.

12%

Radiology

Intraoral/extraoral techniques, panoramic errors, radiation protection optimization, and Irish SI 256/2018 regulations.

15%

Oral Surgery & Oral Medicine

Exodontia, dry socket, post-op bleeding, MRONJ, mucosal lesions (lichen planus, candidiasis, leukoplakia), and biopsy protocols.

15%

Therapeutics & Anaesthesia

Local anesthetic dosing, vasoconstrictor limits, conscious sedation monitoring, medical emergencies, analgesics, and prescribing regulations.

10%

Professional Standards

Infection control, Type B autoclaves, decontamination validation, clinical waste segregation, and child protection (Children First Act).

10%

Patient Management

Consent for minors, GDPR data rights, complaints handling timelines, record retention periods, and clinical ethics.

How to Pass the ie-diploma-primary-care-dentistry Exam

What You Need to Know

Passing score: Standard-set (criterion-referenced)
Assessment: 3-hour written exam consisting of 75 True/False MCQs and 33 Single Best Answer (SBA) questions
Time limit: 3 hours
Exam fee: ~€800

Keys to Passing

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

ie-diploma-primary-care-dentistry Study Tips from Top Performers

1Master pulpal and periapical diagnostic criteria, differentiating reversible and irreversible pulpitis.

2Understand the 2017 Periodontal Classification (Staging and Grading) system.

3Know the pediatric dental trauma guidelines, especially the differences in managing primary vs. permanent tooth intrusions and avulsions.

4Memorize the maximum local anesthetic doses for lidocaine, prilocaine, and articaine in healthy and medically compromised adults.

5Study Irish radiation laws (HIQA enforces patient protection under SI 256; EPA regulates equipment under SI 30).

6Learn the steps of the medical emergency algorithms, focusing on the correct doses and routes for IM epinephrine, aspirin, and glucagon.

7Understand decontamination protocols, including the difference between Type B (vacuum) and Type N (gravity) autoclaves and daily validation tests.

Frequently Asked Questions

What is the Diploma of Primary Care Dentistry (Dip PCD RCSI)?

The Dip PCD RCSI is a postgraduate qualification awarded by the Royal College of Surgeons in Ireland. It recognizes clinical knowledge and professional competence in primary care dental practice and provides a pathway to full membership (MFD RCSI).

What is the format of the Dip PCD RCSI exam?

The examination is a single 3-hour online written paper. It consists of two sections: 75 Multiple Choice Questions (each with 5 True/False branches) and 33 Single Best Answer (SBA) questions. All questions are clinical and scenario-based.

How does the Dip PCD RCSI relate to the MFD RCSI?

The Dip PCD RCSI is fully integrated with the Membership of the Faculty of Dentistry (MFD) pathway. Passing the Dip PCD RCSI exempts you from the MFD Part 1 exam, allowing you to proceed directly to MFD Part 2 (clinical OSCE).

What are the eligibility requirements to take the Dip PCD RCSI?

Candidates must hold a primary dental degree (BDS, DDS, or equivalent) from a recognized university. There is no minimum post-graduation experience required, making it suitable for both newly qualified and established dentists.

What regulations and guidelines are tested in the exam?

The exam tests knowledge of Irish healthcare regulations, including SI 256 of 2018 (ionising radiation), GDPR data laws, and the Children First Act 2015, alongside clinical guidelines from SDCEP, FGDP, and the Irish Dental Council.