Free DHA Dental Lab Technician mock test
12 original exam-style questions from our Dental Lab Technician bank, timed at the exam’s own pace, scored against the 55% DHA pass mark. They span 8 of the 8 blueprint domains, so you will see exactly where you are weakest - free, no sign-up.
Sit 12 original exam-style questions at real exam pace
These are 12 original questions taken from our Dental Lab Technician bank, spread across 8 of the 8 domains of the published blueprint. You get 72 seconds per question, which is exactly the pace of the real DLT5521 exam (14 minutes for 12). At the end you will see which domains you are weakest in, and the full worked reasoning for every question.
- 12
- questions
- 14:24
- time limit
- 55%
- DHA pass mark
A short diagnostic cannot predict whether you will pass - only the real exam does that. It will show you, honestly, where you currently stand.
What the real Dental Lab Technician licensing exam looks like
Candidates for a Dental Lab Technician licence in the UAE sit a computer-based multiple-choice examination - DHA exam code DLT5521, delivered through Prometric for DHA, MOHAP and SHA, and through Pearson VUE for DOH Abu Dhabi. The DHA pass mark is 55% (DHA CBT Guideline, Sep 2026); other authorities set their own, so confirm yours before booking. The result is reported to you as pass or fail only - your score is never released.
Pass marks at a glance: DHA exam codes and pass marks for all written exams in one sourced table.
The paper is built to a published blueprint, which is why a domain-by-domain diagnostic is more useful than a raw percentage. Your questions above were drawn from across All-Ceramic Restorations and CAD/CAM, Complete Dentures, Dental Materials Science, Fixed Prosthodontics and Metal-Ceramics and 4 more - the same areas the real paper weights.
Before you can book the exam at all you need Dataflow primary source verification of your degree, licence and experience, which typically runs several weeks. Candidates routinely underestimate this and end up sitting the exam sooner after study than they planned. Check where you stand with our free eligibility checker or confirm whether your title even requires an exam using the Prometric exam checker.
You get three attempts in total across all UAE authorities - not three each - under the Unified Professional Qualification Requirements. At roughly AED 880 per attempt, plus the licensing delay each failure adds to your visa and start date, the cost of going in underprepared is not really the exam fee.
What is on the Dental Lab Technician exam: the full blueprint
The published blueprint splits into 8 domains and 46 testable sub-topics. The diagnostic above samples across them, which is why its breakdown maps onto the structure the real paper is built from.
- Dental Materials Science~16%6 topics
- Fixed Prosthodontics and Metal-Ceramics~16%7 topics
- All-Ceramic Restorations and CAD/CAM~12%5 topics
- Removable Partial Dentures~14%6 topics
- Complete Dentures~12%6 topics
- Orthodontic and Other Appliances~8%5 topics
- Dental Anatomy, Occlusion and Articulators~10%5 topics
- Laboratory Safety, Infection Control and Ethics~12%6 topics
- Questions
- 150 multiple-choice (DHA DLT5521)
- Duration
- 3 hours, including registration
- DHA pass mark
- 55% - reported as pass or fail only
Figures for the DHA exam, from the DHA CBT Guideline, Sep 2026. DOH, MOHAP, SCFHS, QCHP, NHRA and OMSB set their own length, timing and pass mark. See the DHA exam guide and pass marks for every DHA exam.
A worked Dental Lab Technician exam question
Every question in the diagnostic and in the paid bank is written to this standard: a clinical stem, four plausible options and the reasoning for the answer, with its source.
All-Ceramic Restorations and CAD/CAM
A dentist sends an intraoral scan to the laboratory. Which open file format is most commonly used for the 3D surface mesh?
- ADICOM
- BSTLCorrect
- CJPEG
- DDOCX
Why: STL describes surfaces as triangle meshes and is the standard open format for exchanging scan and design data. DICOM is the format for CT and CBCT images, not surface scans.
Source: Sakaguchi, Craig's Restorative Dental Materials, 14th ed.
Dental Lab Technician sample questions with answers
4 more original exam-style Dental Lab Technician questions, worked in full. They are not real or recalled exam questions, and none of them is in the diagnostic above, so sit that first if you have not.
Question 1 · All-Ceramic Restorations and CAD/CAM
How should the fitting surface of a zirconia crown be prepared for resin bonding?
- AHydrofluoric acid etching followed by silane
- BLow-pressure alumina air abrasion and MDP primer
- CPhosphoric acid etching only
- DRoughening with a coarse diamond bur only
Show answer and explanation
Correct answer: B. Low-pressure alumina air abrasion and MDP primer
Zirconia has no glass phase, so hydrofluoric acid does not etch it; gentle alumina air abrasion and an MDP-containing primer give a durable bond. HF acid with silane is the protocol for glass-ceramics such as lithium disilicate.
Reference: Blatz MB, et al. J Dent Res 2018; Sakaguchi, Craig's Restorative Dental Materials, 14th ed.
Question 2 · Complete Dentures
When setting maxillary central incisors for a complete denture, how far anterior to the centre of the incisive papilla is the labial surface usually placed?
- A1-2 mm
- B8-10 mm
- C3-4 mm
- D15-18 mm
Show answer and explanation
Correct answer: B. 8-10 mm
The labial surfaces of the maxillary central incisors are usually 8-10 mm anterior to the centre of the incisive papilla, a useful starting guide for lip support. Placing them only 1-2 mm forward gives poor lip support.
Reference: Zarb, Prosthodontic Treatment for Edentulous Patients, 13th ed.
Question 3 · Dental Materials Science
A heat-cured acrylic denture shows bubbles concentrated in the thickest part of the palate, not near the surface. What is the most likely cause?
- AToo little pressure during packing
- BToo much separating medium applied
- CCuring temperature raised too quickly
- DPolymer-to-monomer ratio too high
Show answer and explanation
Correct answer: C. Curing temperature raised too quickly
Rapid heating lets the exothermic reaction push the internal temperature above the boiling point of monomer (about 100.8 C), causing gaseous porosity in thick sections. Too little packing pressure causes porosity spread throughout the base, not concentrated in thick areas.
Reference: Anusavice, Phillips' Science of Dental Materials, 12th ed.
Question 4 · Dental Anatomy, Occlusion and Articulators
When waxing a full-contour crown for a mandibular first molar, how many cusps are normally created?
- AFive
- BThree
- CFour
- DSix
Show answer and explanation
Correct answer: A. Five
The mandibular first molar normally has five cusps: mesiobuccal, distobuccal, distal, mesiolingual and distolingual. The mandibular second molar typically has four.
Reference: Wheeler's Dental Anatomy, Physiology and Occlusion, 11th ed.
How to use this diagnostic properly
- 1Sit it cold, once. Do not look anything up. A diagnostic you help yourself through tells you nothing. The number you get is only useful if it is honest.
- 2Read every rationale - especially the ones you got right. Getting a question right by elimination is not the same as knowing it. The worked reasoning is free above, whether or not you buy anything.
- 3Work weakest domain first. The breakdown orders your domains worst-first for exactly this reason. Studying what you are already good at feels productive and moves nothing.
- 4Re-sit under full exam conditions later. The real paper is far longer than this and stamina matters. Full-length timed papers are what the paid bank is for.