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Posts for: July, 2014

CrownsPreservetheToothWhileOfferingGreaterProtectionThanaFilling

The preferred outcome when treating a tooth for decay is to preserve it. If the disease is still in its early stages, we can accomplish this effectively by removing diseased tissue and then restoring the remaining tooth with filling material.

There comes a point, however, when filling a tooth isn’t the best option. If it has already received several fillings, the tooth may have become too weak to receive another. Additionally, a filling may not be enough protection from further fracture or infection for teeth weakened from trauma or abnormal tooth wear or in the event a root canal treatment is necessary.

While a diseased tooth can be extracted and replaced with a durable and aesthetically pleasing dental implant, there may be another option to consider — installing a crown. Like a filling, a crown preserves what remains of a natural tooth, but with better protection, life expectancy and appearance than a filling.

Known also as a cap, a crown completely covers or “caps” a natural tooth. They’re produced in a variety of styles and materials to match the function and appearance of the capped tooth and adjacent teeth. Crowns made of porcelain are ideally suited for visible teeth because of their resemblance to tooth enamel. A less visible tooth that endures more biting force (like a back molar) may need the strength of a precious metal like gold or new-age porcelains that can also withstand significant biting forces. There are also hybrid crowns available that combine the strength of metal for biting surfaces and the life-like appearance of porcelain for the more visible areas of a tooth.

To prepare a tooth for a crown, we first remove any decayed structure and add bonding material to strengthen what remains. We then make a mold of the tooth and bite, which is typically sent to a dental technician as a guide for creating the permanent crown. Recent advances with digital technology have also made it possible to mill the permanent crown out of porcelain in the dental office while you wait.

After the permanent crown is received and permanently bonded to the tooth, you will have a protected and fully functional tooth. From this point on it’s important for you to clean and care for it as you would any other tooth since the underlying tooth is still at risk for decay. The good news is your tooth has been saved with a bonus — a long-term solution that’s also smile-transforming.

If you would like more information on crowns and other tooth restorations, 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 “Crowns & Bridgework.”


By Gary W. Machiko, DMD
July 02, 2014
Category: Dental Procedures
AvoidingtheJimCarreyChipped-ToothLook

Fans of the classic bumbling-buddies comic film “Dumb and Dumber” will surely remember the chipped front tooth that Jim Carrey sported as simpleminded former limo driver Lloyd Christmas. Carrey reportedly came up with the idea for this look when considering ways to make his character appear more “deranged.” He didn't need help from the make-up department, however… He simply had his dentist remove the dental bonding material on his left front tooth to reveal the chip he sustained in grade school!

Creating a Bond
A dental cosmetic bonding involves application of a composite filling material that our office can color and shape to match the original tooth. Bonding material can be used to replace the lost portion of tooth or to seamlessly reattach the lost portion if it has been preserved and is otherwise undamaged. Little to no removal of existing tooth surface is needed. This is the quickest and lowest-cost option to repair a chip.

Alternatives
When a relatively large portion of the tooth is missing, a crown is often the better choice. It fully encases the visible portion of the remaining tooth above the gum line and is shaped and sized to match the original. It can be made of tooth-colored porcelain fused to metal crowns or all-ceramic (optimal for highly visible areas). A small amount of the existing tooth surface will be removed to allow the crown to fit over it.

A veneer can be used to hide smaller areas of missing tooth. This is a thin, custom-made shell placed on the front of the tooth to give it a new “face.” Some removal of existing tooth surface also may be necessary to fit a veneer.

A chipped tooth makes an impression, but generally not a flattering one. Nearly 20 years after “Dumb and Dumber” hit the theaters, the only thing Jim Carrey had to do recently to hint at a sequel for his nitwitted character was tweet a photo of that goofy grin!

If you would like more information about repairing a chipped tooth, 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 “Artistic Repair of Front Teeth With Composite Resin.”