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100+ Free MOHAP Dentist Exam Practice Questions

Pass your MOHAP Dentist Evaluation Exam (CBT via Prometric) exam on the first try — instant access, no signup required.

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When restoring a posterior tooth with a large MOD cavity in which one or more cusps are undermined, which restoration best protects the remaining tooth from fracture under occlusal load?

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Sample MOHAP Dentist Exam Practice Questions

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

1A patient presents with a Class II amalgam restoration that repeatedly fails at the gingival margin of a proximal box. Which design feature most directly improves marginal integrity and reduces recurrent caries in this region?
A.Placing a gingival floor with a butt-joint cavosurface margin at 90 degrees to amalgam
B.Beveling the gingival cavosurface margin to 45 degrees
C.Extending the axial wall pulpally to increase bulk
D.Leaving the gingival margin in contact with the adjacent tooth
Explanation: Amalgam is brittle and lacks edge strength, so cavosurface margins should meet at approximately 90 degrees (a butt joint) to provide adequate bulk of both tooth and material at the margin. The gingival floor should be flat and the margin kept clear of the adjacent tooth to allow finishing and reduce plaque retention.
2When etching enamel with 37% phosphoric acid prior to placing a composite restoration, what is the primary mechanism by which bonding is achieved?
A.Chemical chelation of calcium by the resin monomer
B.Ionic exchange between fluoride and hydroxyapatite
C.Formation of a hybrid layer within intertubular dentin
D.Micromechanical retention from resin tags penetrating etched enamel rods
Explanation: Phosphoric acid selectively dissolves enamel rod cores and peripheries, creating microporosities into which low-viscosity resin flows and polymerizes, forming resin tags. This micromechanical interlock is the basis of enamel bonding and produces the strongest, most durable adhesive interface available in dentistry.
3A dentist is restoring a deep Class I cavity and notes a small carious pulp exposure (under 1 mm) with minimal hemorrhage in a young permanent molar with a vital, asymptomatic pulp. Which material is most appropriate for direct pulp capping based on current evidence?
A.Zinc oxide eugenol
B.Calcium hydroxide hard-setting liner only
C.Mineral trioxide aggregate (MTA)
D.Glass-ionomer cement directly on the exposure
Explanation: MTA (and other hydraulic calcium-silicate cements) provides superior sealing, biocompatibility, and reparative dentin bridge formation compared with traditional calcium hydroxide, giving higher long-term success in direct pulp capping. It is the material of choice for a small exposure of a vital, asymptomatic pulp with controllable hemorrhage.
4According to Black's classification of cavities, a carious lesion located in the cervical third of the facial surface of a mandibular canine, not involving a pit or fissure, is classified as:
A.Class III
B.Class IV
C.Class V
D.Class VI
Explanation: Class V lesions involve the gingival (cervical) third of the facial or lingual surfaces of any tooth. A smooth-surface cervical lesion on a canine that does not involve a proximal contact or incisal edge fits this definition precisely.
5A patient needs a full-coverage crown on a mandibular first molar. Which finish line design provides the best combination of stress distribution and marginal adaptation for an all-ceramic zirconia crown?
A.Feather edge
B.Shoulder with 90-degree internal line angle
C.Chamfer
D.Knife edge with no defined margin
Explanation: A chamfer finish line provides a defined margin with adequate but conservative reduction, good stress distribution, and excellent marginal adaptation, and it is the preferred margin for monolithic zirconia crowns. It avoids the excessive reduction of a shoulder while still giving the technician a clear margin.
6A 65-year-old edentulous patient reports that the maxillary complete denture dislodges when she opens wide or yawns. Overextension in which border region is the most likely cause?
A.Distobuccal flange impinging on the coronoid process
B.Posterior palatal seal area
C.Labial frenum notch
D.Hamular notch undercut
Explanation: The distobuccal flange of a maxillary denture lies adjacent to the coronoid process of the mandible. On wide opening the coronoid process moves forward and medially; an overextended distobuccal flange is displaced, dislodging the denture. The classic complaint is dislodgement on opening wide or yawning.
7Which impression material is most appropriate for recording the final impression of a complete denture because it can be applied in a custom tray and selectively records mucosal displacement?
A.Zinc oxide eugenol impression paste
B.Irreversible hydrocolloid (alginate)
C.Type I dental stone
D.Reversible hydrocolloid (agar)
Explanation: Zinc oxide eugenol impression paste is a classic mucostatic final impression material for complete dentures because it flows well in a close-fitting custom tray, records fine detail of the denture-bearing mucosa, and sets to a rigid impression. It is used over a custom tray after border molding.
8In removable partial denture design, a Kennedy Class I arch is defined as:
A.A unilateral edentulous area posterior to the remaining natural teeth
B.An edentulous area bounded anteriorly and posteriorly by natural teeth
C.A single edentulous area anterior to the remaining teeth crossing the midline
D.A bilateral edentulous area located posterior to the remaining natural teeth
Explanation: Kennedy Class I describes bilateral edentulous areas located posterior to the remaining natural teeth (bilateral distal-extension situation). This classification drives the design because distal-extension bases are tissue-supported and require stress-relieving clasp design.
9A removable partial denture replacing a mandibular distal-extension (Kennedy Class I) is most appropriately designed with which type of direct retainer to minimize torque on the abutment?
A.Circumferential (Akers) clasp engaging a distal undercut
B.Embrasure (double Akers) clasp
C.RPI clasp system (rest, proximal plate, I-bar)
D.Reverse-action (hairpin) clasp
Explanation: The RPI system (mesial rest, distal guiding-plate/proximal plate, and an I-bar engaging a mesiobuccal undercut) is designed for distal-extension cases. Under occlusal load the components disengage or move gingivally rather than torquing the abutment, providing effective stress release on the terminal abutment.
10A patient with a single missing mandibular first molar and healthy adjacent teeth and bone requests the most conservative fixed long-term replacement. Which option preserves the most tooth structure?
A.Single implant-supported crown
B.Conventional three-unit fixed partial denture
C.Resin-bonded (Maryland) bridge
D.Cantilever fixed partial denture
Explanation: A single implant-supported crown replaces the missing tooth without preparing or involving the adjacent natural teeth, making it the most conservative fixed option when bone volume and health permit. It avoids the irreversible reduction of abutment teeth required by conventional and cantilever bridges.

About the MOHAP Dentist Exam Exam

The MOHAP Dentist Evaluation Exam is the computer-based assessment, delivered via Prometric, that internationally and locally qualified dentists must pass to be licensed to practice in the Northern Emirates (Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah, and Fujairah). The general dentist format comprises 150 multiple-choice questions in about 3 hours with a 60% passing standard.

Assessment

Single computer-based session of multiple-choice questions (general dentist format) delivered at Prometric test centers on behalf of MOHAP.

Time Limit

Approximately 3 hours.

Passing Score

60% (Pass/Fail; minimum passing score per MOHAP).

Exam Fee

MOHAP assessment (exam) fee approx. AED 600; total licensing pathway including application and DataFlow verification commonly cited around AED 2,300 (confirm current fees on the MOHAP portal). (UAE Ministry of Health and Prevention (MOHAP))

MOHAP Dentist Exam Exam Content Outline

28%

Restorative Dentistry, Prosthodontics & Operative

Operative dentistry, dental materials, adhesion, fixed and removable prosthodontics, complete dentures, and implant prosthodontics.

23%

Oral Medicine & Oral/Maxillofacial Surgery

Oral pathology, mucosal and premalignant lesions, local anesthesia, exodontia, dental trauma, medically compromised patients, and medical emergencies.

16%

Endodontics

Pulpal and periapical diagnosis, working length, irrigation and disinfection, obturation, retreatment, and management of the open apex.

13%

Periodontics

Etiology and biofilm, periodontal examination and staging, non-surgical and surgical therapy, furcation, systemic links, and maintenance.

11%

Orthodontics & Pediatric Dentistry

Malocclusion classification, interceptive orthodontics, growth modification, space maintenance, pediatric pulp therapy, behavior management, and fluoride.

9%

Professionalism, Ethics & UAE Regulations / Patient Safety

MOHAP licensing pathway, informed consent, confidentiality, infection control, error disclosure, wrong-site prevention, CPD, and clinical waste handling.

How to Pass the MOHAP Dentist Exam Exam

What You Need to Know

  • Passing score: 60% (Pass/Fail; minimum passing score per MOHAP).
  • Assessment: Single computer-based session of multiple-choice questions (general dentist format) delivered at Prometric test centers on behalf of MOHAP.
  • Time limit: Approximately 3 hours.
  • Exam fee: MOHAP assessment (exam) fee approx. AED 600; total licensing pathway including application and DataFlow verification commonly cited around AED 2,300 (confirm current fees on the MOHAP portal).

Keys to Passing

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

MOHAP Dentist Exam Study Tips from Top Performers

1Weight your study toward restorative/prosthodontics and oral medicine/surgery, which together make up the largest share of general dentist Prometric questions.
2Practice clinical-vignette MCQs (diagnosis, management decisions, and emergency response) rather than pure recall, since the exam is scenario-driven.
3Master cross-cutting safety topics such as medically compromised patients, local anesthetic dosing, infection control, and UAE professional/ethics rules, which appear across multiple domains.

Frequently Asked Questions

What is the passing score for the MOHAP dentist exam?

MOHAP reports Prometric results as Pass or Fail based on a minimum passing score of 60%. For the general dentist exam, scoring 60% or above is required, and a pass result is valid for five years.

How many questions are on the MOHAP general dentist Prometric exam?

The general dentist Prometric exam follows the standard GCC format of 150 multiple-choice questions completed in approximately 3 hours, with no negative marking.

Who needs the MOHAP dentist evaluation exam?

Dentists seeking to practice in the UAE's Northern Emirates (Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah, and Fujairah) under MOHAP must complete DataFlow primary source verification and pass the Prometric evaluation exam to be licensed.

Does MOHAP provide an official study reference list?

MOHAP states it does not provide specific study references; candidates are advised to focus on fundamental concepts, standard clinical practices, and core competencies relevant to general dentistry.