Posts for category: Dental Procedures
If you’re in the initial planning stages for a dental implant, you may already be encountering a number of options to consider. One that may come up is how the visible crown will attach to the metal implant imbedded in the bone.
Generally speaking, implants are composed of two parts: a metal post most often made of titanium placed into the bone that serves as the “root” for the new tooth; and a visible, life-like crown made of dental porcelain that attaches to an abutment on the titanium post. The crown can be attached in one of two ways: either with a small screw through the biting surface of the crown into a receiving hole in the abutment or cemented to it.
The major advantage of a screwed crown is that it allows for easy removal of the crown if needed. While the titanium post can often last a lifetime, porcelain crowns more often need repair or replacement since they receive the brunt of the biting forces in the mouth. A screw-attached crown is much easier to remove than a cemented one.
On the other hand, screwed crowns have a small access hole that must be restored with a tooth-colored filling to help the crown appear natural. This isn’t too great an issue with back teeth but does make achieving a natural appearance in the front more difficult. Cemented crowns look more like a natural tooth and are thus more flexible in achieving the desired appearance.
Besides the possibility the cement may cause gum inflammation or bone loss, the chief detraction from cemented crowns is the difficulty in removing them. Crowns are often damaged in this process so it’s highly likely it will have to be replaced rather than repaired. It’s possible to use weaker cement, but this raises the risk of the crown coming loose at some point from the abutment.
As we plan for your implant, we’ll discuss which type of attachment will work best for you, depending on the tooth to be replaced and other conditions with your oral health. The end result, though, should be the same — a new, natural-looking tooth that serves you well 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.”
One of the key parts to an effective oral disease prevention plan is practicing daily oral hygiene to remove dental plaque. Both brushing and flossing are necessary for cleaning your teeth of this thin biofilm of bacteria and food particles most responsible for tooth decay and periodontal (gum) disease.
But as important as they are, these two essential hygiene tasks aren’t the end-all-be-all for lowering your disease risk. For the best protection, you should also visit your dentist at least twice a year for thorough dental cleanings. That’s because plaque you might have missed can turn into something much more difficult to remove: calculus.
Also known as tartar, calculus is hardened deposits of plaque. The term comes from the Latin word meaning “small stone,” an apt description of its texture on tooth surfaces. Although not the same as the branch of mathematics that bears the same name, both derive from the same Latin word: Merchants and traders centuries ago used small stones to “calculate” their various transactions.
Over time soft and pliable dental plaque hardens into calculus, in part due to a reaction with saliva. Because of the difficulty of accessing all tooth surfaces, calculus can form even if you have an effective daily hygiene practice.
Once formed, calculus can adhere to teeth so tenaciously, it’s impossible to remove it with brushing and flossing. But dentists and hygienists can remove calculus safely with special tools called scalers.
And it should be removed or it will continue to foster bacterial growth. This in turn increases the chances for infections that attack the teeth, gums or underlying bone. Keeping it under control will therefore diminish your risk for developing dental disease.
Although there are other factors like heredity that can affect your disease risk, keeping your mouth clean is the number one thing you can do to protect your teeth and gums. A daily hygiene practice and regular dental visits will help ensure plaque and its calcified form calculus won’t be a problem.
In her decades-long career, renowned actress Kathy Bates has won Golden Globes, Emmys, and many other honors. Bates began acting in her twenties, but didn't achieve national recognition until she won the best actress Oscar for Misery — when she was 42 years old! “I was told early on that because of my physique and my look, I'd probably blossom more in my middle age,” she recently told Dear Doctor magazine. “[That] has certainly been true.” So if there's one lesson we can take from her success, it might be that persistence pays off.
When it comes to her smile, Kathy also recognizes the value of persistence. Now 67, the veteran actress had orthodontic treatment in her 50's to straighten her teeth. Yet she is still conscientious about wearing her retainer. “I wear a retainer every night,” she said. “I got lazy about it once, and then it was very difficult to put the retainer back in. So I was aware that the teeth really do move.”
Indeed they do. In fact, the ability to move teeth is what makes orthodontic treatment work. By applying consistent and gentle forces, the teeth can be shifted into better positions in the smile. That's called the active stage of orthodontic treatment. Once that stage is over, another begins: the retention stage. The purpose of retention is to keep that straightened smile looking as good as it did when the braces came off. And that's where the retainer comes in.
There are several different kinds of retainers, but all have the same purpose: To hold the teeth in their new positions and keep them from shifting back to where they were. We sometimes say teeth have a “memory” — not literally, but in the sense that if left alone, teeth tend to migrate back to their former locations. And if you've worn orthodontic appliances, like braces or aligners, that means right back where you started before treatment.
By holding the teeth in place, retainers help stabilize them in their new positions. They allow new bone and ligaments to re-form and mature around them, and give the gums time to remodel themselves. This process can take months to years to be complete. But you may not need to wear a retainer all the time: Often, removable retainers are worn 24 hours a day at first; later they are worn only at night. We will let you know what's best in your individual situation.
So take a tip from Kathy Bates, star of the hit TV series American Horror Story, and wear your retainer as instructed. That's the best way to keep your straight new smile from changing back to the way it was — and to keep a bad dream from coming true.
If you would like more information about orthodontic retainers, please contact us or schedule an appointment for a consultation. You can learn more about this topic in the Dear Doctor magazine articles “Why Orthodontic Retainers?” and “The Importance of Orthodontic Retainers.” The interview with Kathy Bates appears in the latest issue of Dear Doctor.
Although costly in the beginning, dental implants often turn out to be the least expensive tooth replacement option. That's because their enviable record for longevity often outpaces dentures or bridges. Over the long-term you might spend less for implants than these other restorations.
But even with the high success rate of dental implants (greater than 95% survive the ten-year mark), we can't guarantee they won't fail. And if you're a tobacco smoker, the risk of failure might be even higher. One study, for example, found early implant failures were twice the rate for smokers over non-smokers. Although implant failures overall are low, smoking seems to be a factor in those that do.
There are a number of reasons to account for this. For one thing, inhaled smoke can damage salivary glands, reducing the flow of this important fluid. Saliva helps control bacterial growth and neutralize mouth acid, so without it you're more susceptible to tooth decay or periodontal (gum) disease. Either infection could ultimately weaken implant-supporting bone.
The nicotine in tobacco can also restrict oral blood vessels and lower their ability to supply antibodies and nutrients to the teeth and gums. This slows healing, which could have one particular effect on implant durability.
During the intervening weeks between implant placement and crown attachment, the implant's titanium post attracts bone cells that grow and adhere to its surface. The effects of nicotine on healing, especially right after implant surgery, can interfere with this integration process so that the implant doesn't anchor in the bone as well as it should.
If you're a smoker, you can increase your chances of implant success—and have a healthier mouth overall—by quitting smoking beforehand with the help of a cessation program. Or at the least, consider stopping smoking for one week before implant surgery and for two weeks afterward.
And be sure to brush and floss your teeth daily and visit your dentist regularly to keep your teeth and gums as healthy as possible. Stopping smoking and practicing effective oral hygiene could make a big difference in the success or failure of your implant.
If you would like more information on smoking and your dental health, 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 “Dental Implants & Smoking.”
A tooth that's been chipped doesn't mean it's no longer healthy. The same, unfortunately, can't be said about the attractiveness of your smile, especially if it's one of your front teeth. A chipped tooth can be quite noticeable and make you self-conscious.
The good news is a chipped tooth can be restored cosmetically to look just as normal and attractive as your other teeth. Depending on the application there are two different materials we commonly use: porcelains, a type of oven-fired ceramic most often found in veneers or crowns; or composite resins, a mixture of glass and plastic substances we apply in liquid form that hardens in built-up layers on the tooth's surface to ultimately resemble normal tooth shape and color.
So, which of these two materials is the best option for your tooth? That depends on the extent and location of the tooth damage. Composite resins are most often used for mild to moderate chipping or breaks in the enamel (and somewhat for the underlying dentin) or decayed areas in the front teeth. Porcelain veneers or crowns are better for more extensive damage or discoloration.
Both materials have their advantages and disadvantages. Composite resins can be applied in one office visit, but they require a skillful technique and an artistic eye to achieve a life-like appearance; although their strength has improved over the years, they're also limited in their durability and longevity compared to porcelain. Porcelain, on the other hand, is quite durable and has an excellent tooth-like appearance; they do, however, require removal of more tooth material than a composite resin to accommodate the new veneer or crown, along with more than one visit and the services of a dental lab to create the restoration.
The best way to find out which option is best for you is to visit us for a thorough dental examination. From there we can review with you our findings, our recommendations and the costs associated with each option. But whichever material we use, porcelain or composite resins, you can look forward to a new smile you'll be proud to display.
If you would like more information on cosmetic treatments for teeth, 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.”