Posts for: June, 2015
The traditional way to restore a tooth with an artificial crown takes several weeks and multiple office visits: from tooth preparation and impression molding to crown production by a dental laboratory, followed by adjustments and cementing. Now, there’s an alternative that reduces this process to a fraction of the time, and all from your dentist’s office.
Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) is a digital system that enables dentists to create dental restorations with laboratory-grade materials in minutes rather than weeks. As it continues to innovate, you’ll see more and more dentists investing in the new technology for their patients.
A crown restoration with CAD/CAM begins like any other with decay removal and preparation of the tooth. It diverges, though, from the traditional in how an impression of your teeth and gums is obtained: instead of rubber-like molding materials to create a physical impression, we lightly dust the mouth interior with a reflective powder. Using a scanning wand, the reflective powder allows us to capture multiple, detailed images of your mouth that the CAD/CAM computer transforms into an accurate three-dimensional model.
We use the model to first assess if the tooth has been effectively prepared for a restoration. If so, the design feature of the system will provide us with thousands of tooth forms to choose from to match with your natural teeth. You’ll be able to view the proposed size and shape of the new crown via computer simulation before signing off on the design.
Next is the actual manufacture of the crown that takes place right in the dentist’s office. A pre-formed block of ceramic material is inserted in the milling equipment where, following the pre-determined computer design, the milling heads carve the ceramic block. After milling, we fine-tune the crown surface and apply stains or glazes fired to create a life-like color and texture that matches your natural teeth. We can then adjust the crown in your mouth and permanently affix it to the tooth.
While much of the CAD/CAM system is automated, ultimate success still depends on the dentist’s expertise and artistry. CAD/CAM enhances those skills with greater precision and in much less time than traditional crowns. It’s certainly a growing option for many people to restore the form and function of decayed teeth.
If you would like more information on computer-aided dental 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 “Creating In-Office Dental Restorations with Computers.”
Whether performed in a dental office or using a home kit, teeth whitening applications are quite effective for bleaching exterior (extrinsic) stains on enamel surfaces. But what if your discoloration comes from inside the tooth? In this case, extrinsic teeth whitening won’t work — you’ll need to undergo an “internal bleaching” method, which can only be performed in a dentist's office.
There are a number of causes for “intrinsic” staining, including too much fluoride exposure or tetracycline use during childhood. One of the more common causes, though, occurs from root canal treatments used to remove the remnants of the pulp tissue inside a tooth’s pulp chamber and root canals. Certain cements used during the procedure to help seal in the filling material and leftover blood pigments can cause the tooth to darken over time.
To alleviate this discoloration, we use a bleaching agent, usually sodium perborate mixed with a diluted solution of hydrogen peroxide to achieve a safe, accelerated color change. After determining that the root canal filling is still intact and the bone is healthy, we create a small cavity in the back of the tooth to access the pulp chamber. The chamber is cleaned of any debris or stained material and then thoroughly irrigated. The original root canal filling is then sealed off to prevent leakage from the bleaching agent.
We then place the bleaching agent in the cleaned-out space with a cotton pellet and seal it in with a temporary adhesive. This step is repeated for several days until we achieve the desired shade of white. Once that occurs we then seal the dentin with a more permanent filling and then restore the cavity we created with a composite resin bonded to the enamel and dentin.
If we’re successful in achieving the desired color, intrinsic whitening could help you avoid more costly options like veneers or crowns for an otherwise healthy and attractive tooth. The end result would be the same — a beautiful smile without those unsightly stains.
If you would like more information on treating internal tooth stains, 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 “Whitening Traumatized Teeth.”
There are many health concerns when you’re pregnant. And not just for you — what you eat, how you sleep or what medications or supplements you’re taking all have an effect on your baby.
With so many concerns, it’s easy to neglect caring for your teeth. But like other health issues, dental care affects both you and your baby and their future teeth and gum health. For both your sakes taking care of your mouth is a must.
For one thing, you’re more susceptible during pregnancy to periodontal (gum) disease, an infection caused by bacterial plaque built up on teeth surfaces due to ineffective hygiene. It’s believed hormonal changes increase the risk of gingivitis, the inflammation of infected gum tissues, common to expectant mothers.
Gum disease is a serious matter for anyone because of the increased risk of tooth loss. But there’s another potential risk for expectant mothers: the bacteria that causes gum disease can pass through the placenta to the fetus. This can stimulate an inflammatory response from the mother that may result in a pre-term delivery and low birth weight.
There are some things you can do to protect your dental health and your baby’s future health. Maintain a healthy diet with a wide range of whole foods: whole grains, fruits, vegetables, proteins and dairy products. Your doctor may also recommend iron and other supplements to reduce anemia. For the baby’s dental development, be sure you’re taking in sufficient calcium in your diet as well as other vitamins and nutrients. And although it’s common to develop carbohydrate cravings, limit your consumption — especially sugar. Carbohydrates increase the levels of bacteria that cause tooth decay and gum disease.
Above all, practice consistent daily hygiene by brushing at least twice a day and flossing once. Be sure to visit us at least twice a year for cleanings and checkups. If you notice bleeding, swelling or redness of your gums (signs of gum disease) contact us as soon as possible.
A little extra attention to your teeth and gums while you’re expecting can make a big difference in the health of your own teeth and gums, as well as build a strong foundation for your child’s future oral health.
If you would like more information on dental health and care during pregnancy, 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 “Pregnancy and Oral Health.”
Your gums’ primary role is to protect your teeth and keep them firmly in place. But periodontal (gum) disease can damage your gums to such an extent you could ultimately lose your teeth.
Gum disease is a progressive infection caused by bacterial plaque built up on tooth surfaces from poor oral hygiene. The initial infection triggers inflammation, a defensive response of the body characterized by swelling, redness and bleeding of the gums. An initial form of the disease known as gingivitis occurs in most people after just a few days without brushing or flossing.
Resuming hygienic activities to remove daily plaque, along with regular dental cleanings, may be enough to stop gingivitis and restore healthy gums. If the disease is allowed to advance, however, the infected gum tissues will begin to detach from the teeth, turning the slight normal gaps between teeth and gums into wider voids known as periodontal pockets that fill with bacteria leading to infection. Your hygiene efforts will not be enough to cope with this advanced form of periodontal disease.
At this point professional techniques are required to adequately remove plaque and calculus (hardened plaque deposits), depending on the depth and location of the periodontal pockets. The most basic of these is scaling using specialized hand instruments or ultrasonic equipment to remove plaque and calculus in pockets at or just below the gum line. If plaque and calculus have extended to the roots we may then need to employ root planing, in which we “shave” offending material from root surfaces. In some cases this may require accessing the area surgically beneath the gum tissue.
As plaque removal progresses, inflammation will begin to subside and the gum tissues heal. If, however, swelling, bleeding or pus formation persists, this may indicate bacterial levels remain too high. To decrease these levels we may need to administer antibiotics, or through mouthrinses containing chlorhexidine.
Once under control, it’s crucial from then on for you to maintain a strict daily regimen of brushing and flossing to keep plaque from building up on tooth surfaces. You'll also need to visit us regularly (two or more times a year) for professional cleaning and checkups. Keeping a close eye will help prevent a reoccurrence of this serious disease and prolong the life of your teeth.
If you would like more information on treating periodontal (gum) disease, 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 “Treating Difficult Areas of Periodontal Disease.”