Guides LDS Part 3
LDS Part 3: the three-hour manikin assessment
The last part of the LDS route, and the only one that puts a handpiece in your hand. One day, three hours, a dental manikin, and four domains of the Safe Practitioner Framework being marked at once.
- 3 hours
- One day
- £1,736
- Fee
- 3
- Attempts
- 5–6 wk
- Results
Part 3 is the final hurdle of the Licence in Dental Surgery, and it is the one candidates most often underestimate. It is a three-hour operative assessment on a dental manikin, sat in person over a single day, and passing it is the last thing standing between you and eligibility for full GDC registration.
What is actually assessed
The temptation is to treat Part 3 as a hand-skills test. It is not only that. RCS England marks it against the GDC’s Safe Practitioner Framework, across four domains:
| Domain | What it means on the day |
|---|---|
| Clinical knowledge and skills | The preparation itself — access, outline, depth, margins, finish |
| Interpersonal skills | How you communicate, including with staff and examiners |
| Professionalism | Cross-infection, sharps, waste, respecting the simulated patient |
| Self-management | Time, sequencing, recognising and recovering from your own errors |
Two of those four have nothing to do with how well you cut a cavity. Candidates fail Part 3 for working unsafely or running out of time far more often than for producing a poor preparation.
Three hours is the assessment
The clock is the examiner nobody talks about. Three hours sounds generous until you are partway through and realise the sequence you chose has left the hardest work until last.
What consistently separates candidates:
- Sequencing decided before you start. Know the order you will work in, and how long each step gets, before the clock starts. Deciding at the chair costs minutes you do not have.
- Working to a finish, not to perfection. An unfinished excellent preparation scores worse than a finished good one. Budget time to complete everything.
- Recovering visibly. Everyone makes an error. Noticing it, saying so, and correcting it is self-management being demonstrated, not weakness being exposed.
- Cross-infection discipline throughout. It is marked continuously, not at the end. Sloppiness in the last twenty minutes counts.
Practical arrangements
| LDS Part 3 | |
|---|---|
| Format | Three-hour operative assessment on a dental manikin |
| Duration | One day, in person |
| Fee | £1,736 |
| Attempts | 3 |
| Admission letters | About six weeks before the sitting |
| Results | Five to six weeks after |
| Time limit | Five years across all three parts |
The six-week admission letter matters if you are travelling. Book flexible where you can — you will have confirmation, but not much runway.
How to practise for it from abroad
This is the honest difficulty of Part 3 for an overseas candidate: you cannot revise your way through it. It needs hands, a handpiece and a manikin.
What candidates who pass tend to have done:
- Secured phantom-head time, however basic. A dental school, a former university, a private training centre, or a colleague’s practice out of hours.
- Practised to time, repeatedly, rather than practising technique in isolation. The three-hour constraint has to be rehearsed.
- Had someone qualified watch at least once. You cannot see your own cross-infection habits.
- Rehearsed the whole day, not just the cutting — setting up, sequencing, tidying, finishing on time.
No question bank and no revision guide will prepare you for Part 3, and any provider claiming otherwise is selling something. What written preparation does do is get you through Parts 1 and 2 efficiently, so that your time and money are still available when you reach this one.
Where Part 3 sits in the route
Part 3 is the end of a route that costs about £4,554 in exam fees across all three parts — roughly £3,000 less than the ORE, a gap that opened up when ORE Part 2 rose 65% in May 2026. The full breakdown is in what GDC registration costs.
The five-year limit covers all three parts together. Candidates who spend two years on Part 1 arrive at Part 3 with less room than they expected, which is an argument for getting the written part done efficiently rather than cheaply.
Capacity is improving: government funding is taking final-exam places from 180 to 1,800 by 2028, so the queue that has frustrated candidates should ease considerably.
Frequently asked
What is LDS Part 3? A three-hour operative assessment on a dental manikin, sat in person over one day, marked against the four domains of the Safe Practitioner Framework.
How much does LDS Part 3 cost? £1,736. The three-part LDS route totals about £4,554 in exam fees.
How many attempts do I get at Part 3? Three, within the five-year limit that runs across all three parts.
Is Part 3 just a hand-skills test? No. Clinical skill is one of four domains. Professionalism, interpersonal skills and self-management are marked alongside it, and candidates fail on time and safety more often than on technique.
How long do results take? Five to six weeks. Admission letters arrive about six weeks before the sitting.
Can a question bank prepare me for Part 3? No. It needs manikin practice. Written preparation gets you through Parts 1 and 2 efficiently so your time and budget survive to reach Part 3.
Sources
Fees, formats and attempt limits are set by RCS England and change — confirm with the College before you act on anything here.