Same-day CEREC crowns
At Island Dental, we believe the CEREC machine is one of the greatest advancements in modern dentistry and we’re proud to offer this technology at our Adelaide practice.
With CEREC technology, you can now have a crown or ceramic restoration put on in just one appointment.
The standard procedure to fit a crown is done in two stages. At the first visit, the dentist prepares your tooth using anaesthetic, putting rubbery material in your mouth to make a dental impression, and placing a temporary crown over it. Then the impression is sent to a lab to fabricate the crown (this could take weeks). Back at the second appointment, your mouth is numbed again and the permanent crown fitted.
CEREC stands for Chairside Economical Restoration of Esthetic Ceramics, or CEramic REConstruction.
To do this, the machine uses CAD/CAM – Computer-Assisted Design and Computer-Aided Manufacturing. Right there in the dental room, the computer takes a 3D impression of your tooth, designs the dental restoration to fit your tooth with extraordinary precision, and actually makes or mills it from the porcelain material. Then the dentist can fit it straightaway.
With CEREC, there’s no need to take dental impressions with gooey material, you don’t have to wear a temporary crown, the area only has to be numbed once and because the CEREC process only requires the removal of contaminated tooth material, you conserve a greater portion of your natural tooth.
- Simpler A CEREC procedure saves time, saves visits and saves on injections. It’s more convenient.
- More comfortable The computer takes a visual impression, so there’s no need for a rubbery impression.
- More natural The porcelain used in CEREC restorations is similar to natural tooth enamel in colour, hardness and expansion. It’s a biocompatible material and there’s no metal or mercury used.
- Stronger The restored tooth is actually stronger because of the bonding technique and the porcelain’s own inherent strength.
- Kinder CEREC allows more original natural tooth structure to be saved. The wear rate of the CEREC material is similar to enamel, so it’s kinder on the restored tooth and the opposing tooth. This is especially important in patients with heavy bites.
- Lasts longer Studies indicate that CEREC restorations are as durable as gold and longer-lasting than laboratory-made porcelain restorations.
- More translucent to X-rays Because X-rays can penetrate CEREC porcelain, the dentist can better see problems (if they develop at a later date). It’s difficult to see what’s happening under traditional porcelain and metal crowns with dental X-rays.
The whole procedure is completed in one visit in as little as an hour, with the dentist having complete control over the time taken, and the fit and colour of your tooth restoration.
First, your damaged tooth is prepared conservatively for the CEREC restoration.
- Optical impression
An impression is taken by simply photographing the tooth with a special computer camera to an accuracy of 25 microns. The computer calculates the shape in three dimensions.
The restoration is designed on the computer screen while you watch.
Once the design is done, the computer instructs the milling machine to carve a porcelain block to form a crown to fit your tooth to an accuracy of 50 microns. The milling process takes between 5-15 minutes.
The porcelain restoration is bonded to the tooth, adjusted and polished to be smooth as the rest of the teeth in your mouth.
We have upgraded our CEREC technology to the new CEREC 3D omnicam machine, which has the latest 3D software. This allows the dentist to design and view the final porcelain restoration in 3D prior to the milling stage. The precise fit, the wonderful appearance and the biocompatibility of CEREC porcelain make CEREC 3D restorations a state-of-the-art creation in dentistry.
To see how the CEREC 3D machine works, watch this video: