Posts for tag: Crowns
If you've lost a tooth, you have a number of options for replacing it. Perhaps the best choice in terms of lifelikeness and durability is a dental implant.
All implants have the same basic architecture: a titanium metal post imbedded in the jawbone to replace the root; and an abutment, a metal collar that links the post with a lifelike porcelain crown. But implants can vary in how the crown attaches to the abutment and post — either cemented to the abutment or screwed through the abutment to the post.
Either method will permanently secure the crown to the implant. But there are advantages and disadvantages for each.
A screw-retained crown may better facilitate any future repair that might be needed. For a skilled dentist it's a simple matter of removing the screw and then the crown from the abutment. There's less risk of damage to the implant during repairs or crown replacement. Many dentists also prefer screws for crowns placed at the same time they're installing the implant post (a procedure called immediate loading).
The screw access hole, however, could pose a cosmetic problem. Although we can cover it over with tooth-colored filling, it may still be noticeable and unattractive especially for a tooth visible when you smile (in the smile zone). There's also the possibility the porcelain around the access hole could chip.
By contrast, cemented crowns have a smooth, unbroken surface and are aesthetically ideal for smile zone teeth. But the cement could interact poorly with gum and bone tissue in some patients, causing inflammation and possible bone loss.
And unlike screw-retained crowns, cemented crowns are difficult to remove for implant repair. We may have to drill through the crown to access the screw between the abutment and the post, and then repair it cosmetically if we use the same crown. Again, the final result may not be quite as visually appealing.
In the end, it will depend on the implant's location, how your body reacts to the cement or your dentist's preference. In either case, though, you'll have a tooth replacement that's functional, life-like and able to endure for many years to come.
If you would like more information on dental implants, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “How Crowns Attach to Implants.”
If you need a crown but don’t want to make more than one trip to the dentist, a CEREC crown might be an option worth considering.
Patients in the Atlanta area might consider exploring this option with Atlanta Sedation Dentistry, a long-time Atlanta-area practice that specializes in CEREC procedures, including same day crowns.
What is crown and why do I need one?
A crown, also called a cap, is a replacement cover that is placed over a tooth to keep it from breaking, or to replace a tooth that is already broken. Crowns can be made from a variety of materials, including metals and/or ceramic. Traditionally, a patient who needed a crown would have to undergo two appointments. During the first appointment a mold was made to manufacture a permanent crown in a laboratory and a temporary plastic crown was affixed to the tooth. During the second appointment the temporary is replaced with the permanent crown.
What is a CEREC crown?
CEREC(Chair side Economical Restorations of Esthetic Ceramic) is a company that has developed a process for custom designing and manufacturing same-day ceramic dental restorations such as crowns via a Computer Assisted Design system. This allows the dentist to design the crown according to the specific needs of the patient and to manufacture it from a block of ceramic, on-site, and install it all in one appointment.
According to the American Dental Association, CEREC crown procedures are a viable treatment option with a high long-term success rate.
What are some advantages of CEREC crowns?
- Convenience – the permanent crown can be designed and manufactured on site and permanently installed all in the same appointment.
- Cost – the procedure tends to cost less as it only requires one appointment.
- Material – the material used is ceramic; there is no metal. This means that not only is it more visually pleasing but there is no chance of a patient suffering a reaction from a metal allergy.
It is generally agreed that CEREC crowns are most successful on less visible or posterior teeth. This is because it may be difficult to match the color gradients in a patient’s natural teeth with a ceramic block that only has a standard color gradient. Therefore, a patient having a crown done on a front tooth might wish to have the crown designed and built in a laboratory.
Your dentist can help you determine the best option for you. For more information call Atlanta Sedation Dentists at 404-524-1981 or visit the website at www.atlantasedationdentistry.org.
How Does CEREC Work?
What are the Benefits of CEREC – Same Day Crowns in Atlanta?
- Less time is spent in the dental chair
- Hi-Tech accuracy
- Less tooth structure is lost in many cases
- Natural, tooth-colored restoration
- Less chance for complications with preservation of healthy tissue
- CEREC is environmentally friendly
- Precise for long-lasting results