DLOSCE Preparation Tips and Tricks: 12 Ways to Prepare for the Computer-Based Exam

DLOSCE preparation guide · Updated September 2026

DLOSCE Preparation: 12 Tips and Tricks for the Computer-Based Exam

The DLOSCE is not a memory test. It is a clinical-judgment exam with its own marking rules, its own clock and its own test-day rules. Learn those, and every hour of study is worth more. Every tip below is grounded in the official 2026 candidate guide.

~2 minper question (37 in 75 min)
1 wrongpick can zero a multi-select
4 itemsto set for each medicine in a prescription task
6h 45mtotal seat time
Tip 1 comes first, because it changes how you answer

Scoring lab: how one wrong click can cost you the whole question

Some DLOSCE questions ask for “one or more correct answers”. They are marked differently from ordinary multiple choice. Each option below is labelled so you can see how it is classified. Pick a combination of clicks and see how it would be marked.

Practice question (written by TSB to show the marking, not an exam item)

Patient box: 34-year-old woman, no known allergies. Tooth #30 has deep caries. Cold test gives sharp pain that lingers about 40 seconds. Spontaneous night pain. Percussion normal. No periapical radiolucency.

Which findings support symptomatic irreversible pulpitis? Select all that apply.

APain lingers about 40 seconds after cold (correct)
BSpontaneous throbbing pain at night (correct)
CDeep caries near the pulp on the radiograph (neutral)
DNormal response to percussion (neutral)
EA periapical radiolucency at the root apex (incorrect)

Choose what you would click to see the mark.
Full credit

1 point

You found every correct answer and picked nothing incorrect.

Partial credit

Some marks, not all

You picked a correct answer and nothing incorrect, so you keep partial credit. In the official example, one correct pick out of two earned half a point.

Full credit

1 point

D is neutral. Picking a neutral answer neither gains nor loses credit. An answer is neutral when the case cannot settle it, or when experts disagree.

Zero

No credit at all

E is incorrect. A candidate who selects an incorrect response automatically earns no credit for the question, even when the correct answers were also selected.

The trickOnly click an option you can defend from the patient box. Leaving a doubtful option unclicked risks a little partial credit. Clicking a wrong one risks the entire question.
Tip 2

Know your clock before test day

Each question section gives you 37 questions in 75 minutes. That is about two minutes a question, so use these checkpoints.

25

By minute 25Be at about question 12.

50

By minute 50Be at about question 25.

75

By minute 75All 37 done, with a little time in hand.

The prescription section is differentThe two prescription tasks share just 10 minutes, about 5 minutes each. Each task is worth up to 4 points, so practise them until the routine is automatic. A timer is on screen during the exam, and the timer pauses while items load, so a slow screen does not steal your time.

Checkpoints are our own arithmetic from the official section times (75 minutes divided by 37 questions is about 2 minutes 2 seconds per question).

The full list

12 tips, in three groups

Tap a group. Tips 1 and 2 are above.

3
Study by the blueprint weights

Restorative (24%) and Prosthodontics (19%) together are 43% of the exam. Add Oral Pathology, Pain and TMD (13%) and you have 56%. Spend your hours in proportion, not evenly. Diagnosis, treatment planning and occlusion run through every subject, so they are never a separate topic to skip.

4
Practise cases, not recall

Every question is a patient decision: history, findings, images, then “what would you do”. Flashcards of facts will not train that. Work case-based questions and always ask why the wrong options are wrong. The wrong options are often “errors in clinical judgment” the exam is testing for.

5
Use the official practice questions for format, not for content

The JCNDE offers free practice questions, and says they are best used to get familiar with item formats, not as a study aid. It also warns they may be out of date and that candidates should not limit preparation to them. Its own advice is to use clinical experience, textbooks and lecture notes as primary sources.

6
Build up from simple to hard

Start with standard questions of four or five options and one right answer. Once that is solid, move to long option lists and multi-select. The official single-answer sample has 14 options, so long lists are normal on the real exam.

7
Read the patient box first, and read it fully

The patient box is the information available at the visit. If an area is empty, assume the information is unknown or not available. If no allergies are listed, assume no known allergies. Endodontic results may come as a chart: percussion and palpation as + or -, cold test as + or “no response”, plus electric pulp test readings. Learn to read that chart at a glance.

8
Decide before you scan the options

With a long option list, form your own diagnosis or plan from the case first, then look for it. If you read the list first, plausible distractors will pull you off your own reasoning.

9
Drill the prescription routine

In each task you choose the appropriate medicine from a list, then set four things for it: the tablet or capsule strength, the total number dispensed, the number taken per dose, and how often to take it. One task is an antibiotic and one is an analgesic. Check the patient box for allergies and medical conditions before you pick the drug. Practise all four items until you never skip one.

10
Try the 3D model tutorial before test day

Some questions use a lifelike 3D model you rotate, zoom and move. The JCNDE has an online tutorial so you can practise before you arrive. On the real exam, a question mark in the top right corner shows how to use the model, but you do not want to be learning the controls under the clock.

11
Train for stamina, not just knowledge

Seat time is 6 hours 45 minutes, made of four 75-minute question sections plus the prescription tasks. Practise in 75-minute blocks with no pausing, and do at least one run of all four sections back to back before test day. Use the three optional scheduled breaks (10, 30 and 10 minutes). Time taken on unscheduled breaks is deducted from your testing time.

12
Never study from remembered exam questions

Exam questions are confidential and copyrighted. Sharing or using remembered questions can void results and lead to legal action. It also gives you a false picture of the exam. Train on original practice material instead.

Interactive

Pick your timeline for a suggested study plan

These plans are our suggestions, built from the exam’s blueprint weights. Adjust them to your strengths.

Choose how long you have.

45 days

Days 1 to 12Foundation: standard questions, Restorative and Prosthodontics first
Days 13 to 30Every subject in blueprint order, one timed test a week
Days 31 to 40Long option lists, multi-select and prescription drills
Days 41 to 45Full 4-section runs in 75-minute blocks, then review and rest

30 days

Days 1 to 7Foundation on the top three subjects (56% of marks)
Days 8 to 20Remaining subjects, weighted by the blueprint
Days 21 to 27Multi-select, prescriptions and two full-length tests
Days 28 to 30Review weak areas and rest

14 days

Days 1 to 5Restorative, Prosthodontics, Oral Pathology, Pain and TMD
Days 6 to 9Periodontics, Oral Surgery, Endodontics, Orthodontics, Medical Emergencies
Days 10 to 12Prescription drills and multi-select practice
Days 13 to 14One full 4-section run, then rest
Interactive

Exam-day checklist

Tap each item as you sort it. All rules are from the official guide.

Quick answers

Frequently asked questions

Are the official practice questions enough?
No. The JCNDE says practice questions are best for learning the format and cautions candidates not to limit preparation to them. Build real depth with textbooks, lecture notes and case-based practice.
Do all 148 questions count?
Not necessarily. Some questions are experimental and are not scored, and they look the same as scored ones. Treat every question as real.
How is the exam passed?
It is reported as pass or fail from an overall scale score of 49 to 99, and 75 is the minimum passing score. It is not the raw number of questions you got right.
Has the exam changed in 2026?
The DLOSCE is now the computer-based part of the ADEX Dental Examination. The format described here is the same. See our full breakdown of the ADEX exam for eligibility, fees and the five hands-on exams.
Practise it the way you will be tested

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Case-based questions in the exam’s own patient-box layout, prescription practice, and answers written by faculty. Score 60% or more in our tests and still do not pass? We teach you again at no cost.

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Current as of 28 September 2026. Sources: JCNDE 2026 DLOSCE Candidate Guide and the ADEX 2026 DLOSCE candidate manual. The practice question, pacing checkpoints and study plans are TSB’s own and are not exam content. Rules can change; confirm with the JCNDE and ADEX before you register. Educational content, not licensing advice.

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