When something can be made in an hour that used to take a fortnight, a certain scepticism is healthy. Are same day crowns any good compared with laboratory-made ones, or is speed being bought at the expense of quality? For most crowns the honest answer is that they perform comparably, and there are specific situations where the laboratory still has the edge.
On this page
- The honest answer
- Fit and accuracy
- Strength and materials
- Appearance, where the difference lies
- How long do they last?
- When the laboratory route is better
- How to choose
- The bottom line
The honest answer
For the majority of crowns, particularly back teeth, a well-made same day crown performs comparably to a laboratory crown in fit, strength and longevity.
The reason is that same-day technology does not skip any step. The tooth is prepared identically, the shape is captured digitally rather than in impression material, and the crown is milled from a solid, industrially manufactured ceramic block. What is removed from the process is the two weeks of transit and queueing, not the craftsmanship.
Fit and accuracy
This is where same-day technology arguably has a small advantage.
Conventional impressions are extremely good but not infallible. Impression material can distort slightly, and the plaster model poured from it introduces another small step where accuracy can be lost.
A digital scan removes both of those. The crown is designed directly onto a digital model of your actual prepared tooth, and milled to that design. It also removes the discomfort of impression trays entirely, which matters a great deal if you have a strong gag reflex.
Our post on how same day crowns are made explains the process step by step.
Strength and materials
Modern milled ceramics are strong materials, manufactured under controlled industrial conditions, which means the block your crown is milled from has consistent, predictable properties throughout.
For everyday chewing on back teeth, this is entirely adequate and has been for years. Where a bite is particularly heavy, or where a patient is a known heavy grinder, material choice matters more, and that is a conversation worth having rather than assuming.
Appearance, where the difference lies
If there is one honest limitation, it is here, and it applies mainly to front teeth.
A natural front tooth is not one colour. It has subtle gradations from the gum to the biting edge, varying translucency, and fine surface characteristics. A skilled dental technician builds those effects by hand, layering porcelain, and at the highest level that remains difficult to match with a milled crown finished in the surgery.
For a back tooth, this is largely academic. For a single front tooth that must match its neighbour exactly, in every light, the laboratory route can still produce the more convincing result.
Same day crowns can be characterised and glazed to look very good indeed, and for many front teeth they are perfectly suitable. It is the most demanding cosmetic cases where the distinction shows.
How long do they last?
Comparable to conventional crowns: commonly ten years and more with good care.
As with any crown, what determines longevity is mostly what happens around it rather than the crown itself. Decay at the margin is the most common cause of failure, followed by grinding. Our post on how long a dental crown lasts covers the factors in full.
When the laboratory route is better
Being straightforward about it:
- Front teeth with exacting cosmetic demands, particularly a single crown matching natural neighbours
- Complex bites, where careful articulation and adjustment on a model helps
- Multiple crowns together, where several units need to work as a harmonious set
- Certain heavily broken-down teeth, depending on what remains
- Where a different material is indicated for your particular bite
A practice offering both should tell you honestly which category your tooth falls into. Being steered towards whichever equipment is in the building is the thing to watch for.
How to choose
Ask three questions at your consultation: is my tooth suitable for a same day crown, what material would be used, and would a laboratory crown produce a better result in my case?
Weigh the convenience honestly too. One appointment instead of two, one round of numbing, no temporary crown and no fortnight of waiting are genuine benefits, not just marketing. Our post on what to do when a crown comes off explains why avoiding the temporary stage is worth something.
And where a crown is not the right restoration at all, an inlay or onlay may preserve more of your tooth. Our post on choosing between root canal and extraction covers the decision further up the chain.
The NHS overview of crowns gives useful general background.
The bottom line
Same day crowns are genuinely good for most teeth, with excellent fit, comparable strength and comparable lifespan, plus real convenience. The laboratory retains an edge for the most demanding front-tooth cosmetics and certain complex cases. The right answer is whichever suits your particular tooth, and you should be told which and why.
If you need a crown and would like to discuss both routes honestly, ring us on 01255 422506. Our page on same day crowns explains what is involved, and our page on crowns covers why teeth need them.
This article is general information rather than personal dental advice. Every mouth is different, so please speak to your dentist about your own teeth.