Same-Day Crowns: A Finished Crown in a Single Appointment

With a same-day crown, you can arrive with a cracked or heavily filled tooth and go home with its permanent ceramic crown already in place, typically in about two hours or less. There is no goopy impression, no wait of two or three weeks for an outside lab, and no temporary crown in between. Instead, the prepared tooth is captured with a 3D scanner, the crown is designed on screen, and it is milled from a single block of ceramic in the studio while you wait. For most straightforward teeth, the fit, appearance and durability are clinically comparable to crowns made in a traditional lab.

How the same-day process works

Put simply, the crown is made in the office during your appointment. Three pieces of technology make that possible: a compact intraoral scanner that records the prepared tooth as a digital 3D model, design software in which the dentist shapes the crown on a monitor, and a small milling unit that carves the finished restoration from a solid ceramic block.

After the tooth has been shaped, the scanner takes the place of the impression tray and putty many people recall from past visits. Within seconds a 3D model is on screen. The dentist then refines the crown's outline, the way it meets the teeth on either side, and how it lines up with your bite, before sending the design to the mill. Milling and polishing generally take somewhere between fifteen and forty minutes, during which you can rest, read or simply stretch your legs. The crown is then bonded in place before you leave.

What you avoid by doing it in one visit

A conventional crown needs two appointments two to three weeks apart, because the impression is sent away and a technician builds the crown by hand. Completing everything in one sitting spares you several of the frustrations of that sequence:

• One round of anaesthetic. Because the work happens in a single visit, you are numbed only once.
• No temporary crown. Temporaries can come loose, let fluids seep underneath, or fall off altogether, which often means an unplanned trip back.
• No weeks of careful chewing. Many people steer clear of sticky or hard foods while wearing a temporary. Here, the final crown is already bonded when you walk out.
• One trip, one recovery. A single appointment means a single journey to our Mountain View studio and a single day of taking it easy.

Many patients also find a digital scan more comfortable than a putty impression, which matters a great deal if you have a strong gag reflex or feel uneasy about impression trays. Clinical studies comparing the two methods have found that crowns made from digital scans can fit at the margin as precisely as, or more precisely than, crowns made from conventional impressions.

How well same-day crowns last

Same-day crowns are usually milled from lithium disilicate or zirconia, both strong, tooth-coloured ceramics that have been examined for years in peer-reviewed dental research.

Studies of chairside ceramic crowns over short and medium follow-up periods have reported survival of about 95% at four years and above 98% at seven years for single teeth. A 15-year follow-up of chairside lithium disilicate crowns found roughly 80% still in service, and most of the failures were caused by new decay at the edge of the crown or other problems with the tooth itself, which affect lab-made crowns in exactly the same way. In practice, a same-day crown that is well designed, properly bonded and supported by regular hygiene visits can be expected to last as long as a traditional one.

The complications reported most often in the research are small chips and the occasional margin that needs a touch of polishing. Neither is specific to digitally made crowns, and both are usually dealt with at a routine visit.

When same-day is the right choice, and when it is not

Same-day crowns are ideally suited to the cases they were designed for: a single back tooth that needs a crown after a large filling, a fracture or a root canal, and many front teeth where the shade is not especially complicated. They are also a good option when a tooth has broken and you would like it restored properly without weeks in a temporary. If you are reading this because a tooth has just cracked, our guide on what to do after breaking a tooth covers the first steps.

There are still cases where we may suggest a crown from a dental lab instead: bridges spanning several teeth, front teeth with demanding aesthetics that benefit from a ceramist layering porcelain by hand, or situations that call for a carefully matched shade across a number of teeth. The question is not old technology against new, but which approach suits the tooth in front of us. We will explain which one we recommend, and why, before any treatment starts.

Questions about same-day crowns

Will it look as natural as a lab-made crown?

For individual teeth, yes. Today's ceramic blocks come in a range of shades and levels of translucency, and the bite, contacts and shape are all refined on screen before the crown is milled and polished.

How long is the appointment?

Allow roughly 90 minutes to two hours from the start of numbing to final bonding. Milling runs in the background while the dentist prepares for seating the crown.

Is it covered by insurance?

PPO plans generally treat a same-day crown the same way as any other ceramic crown. Eclat is in-network with all major PPO dental plans, and our front desk can check your specific benefits and provide a written estimate after your exam, before you commit to treatment.

How long will the crown last?

With routine hygiene, and a night guard if you grind, a well-placed ceramic crown can serve you for many years. When crowns do need replacing, the usual culprit is decay at the margin rather than the ceramic itself, so daily flossing really does matter. If grinding is a concern, see our article on night guards for grinding.

Talk it through with us

If you have been told you need a crown, or a tooth has cracked and you are unsure what comes next, we are happy to explain whether a same-day crown makes sense for you. You can learn more about our general and restorative dentistry, or call Eclat Dental Studio in Mountain View at (650) 917-8348 to arrange a visit.