By David R. Robinson, DMD, PC
June 23, 2017
Category: Dental Procedures
Tags: dental implants  
ScreworCementWhichisBestforAttachingYourImplantCrown

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.”

By David R. Robinson, DMD, PC
June 08, 2017
Category: Oral Health
AnyTimeAnyPlaceCamNewtonsGuidetoFlossing

When is the best time to floss your teeth: Morning? Bedtime? How about: whenever and wherever the moment feels right?

For Cam Newton, award-winning NFL quarterback for the Carolina Panthers, the answer is clearly the latter. During the third quarter of the 2016 season-opener between his team and the Denver Broncos, TV cameras focused on Newton as he sat on the bench. The 2015 MVP was clearly seen stretching a string of dental floss between his index fingers and taking care of some dental hygiene business… and thereby creating a minor storm on the internet.

Inappropriate? We don't think so. As dentists, we're always happy when someone comes along to remind people how important it is to floss. And when that person has a million-dollar smile like Cam Newton's — so much the better.

Of course, there has been a lot of discussion lately about flossing. News outlets have gleefully reported that there's a lack of hard evidence at present to show that flossing is effective. But we would like to point out that, as the saying goes, “Absence of evidence is not evidence of absence.” There are a number of reasons why health care organizations like the American Dental Association (ADA) still firmly recommend daily flossing. Here are a few:

  • It's well established that when plaque is allowed to build up on teeth, tooth decay and gum disease are bound to follow.
  • A tooth brush does a good job of cleaning most tooth surfaces, but it can't reach into spaces between teeth.
  • Cleaning between teeth (interdental cleaning) has been shown to remove plaque and food debris from these hard-to-reach spaces.
  • Dental floss isn't the only method for interdental cleaning… but it is recognized by dentists as the best way, and is an excellent method for doing this at home — or anywhere else!

Whether you use dental floss or another type of interdental cleaner is up to you. But the ADA stands by its recommendations for maintaining good oral health: Brush twice a day for two minutes with fluoride toothpaste; visit your dentist regularly for professional cleanings and checkups; and clean between teeth once a day with an interdental cleaner like floss. It doesn't matter if you do it in your own home, or on the sidelines of an NFL game… as long as you do it!

If you would like more information about flossing and oral hygiene, contact us or schedule an appointment for a consultation.

TechniquesforKeepingImpactedCanineTeethfromSpoilingYourSmile

Although usually an orderly process, some permanent teeth don't come in as they should. In fact, they may not come in at all and remain hidden in the gum — a situation called impaction. This creates multiple problems for function, health and, in the case of front canines, appearance.

Canines are the longer and more pointed teeth on each side of the front-most incisors. They help tear and cut food during chewing, a function impaction eliminates. Besides a higher risk for developing abscesses (isolated areas of infection) and cysts, they can also put pressure on neighboring teeth and damage their roots or cause them to erupt abnormally.

Dentists often remove impacted wisdom and other back teeth to lessen these potential problems. Removing canines, though, has additional considerations: besides compromising ideal chewing function, missing canines often create an unattractive smile.

But before considering removal, there's another technique we might be able to use to save the canines and actually draw them down through the gums to their correct position. It's usually part of an overall orthodontic plan to correct a poor bite (malocclusion).

After pinpointing their exact position with x-rays or CT scanning, a surgeon surgically exposes the impacted canines' crowns through the gums. They then bond small brackets to the crowns and attach a small gold chain to each bracket. They fasten the other end of the chains to orthodontic hardware that exerts downward pressure on the impacted teeth. Over several months this pressure can help move the teeth into their normal positions.

Unfortunately, this technique isn't always advisable: one or more of the impacted teeth may be in a difficult position to attempt it. It's usually best in these situations to remove the teeth, usually sooner rather than later for the sake of neighboring teeth.

Fortunately, with today's advanced restorative techniques, we can eventually replace the canines with dental implants, although that's best undertaken after the patient enters adulthood. In the meantime, we can utilize orthodontic means to preserve the open space and provide a temporary restorative solution.

Whatever route taken, these teeth don't have to become a source of problems, especially for your appearance. Whether through orthodontics or restorative dentistry, impacted canines don't have to ruin your smile.

If you would like more information on various orthodontic procedures, 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 “Exposing Impacted Canines.”

By David R. Robinson, DMD, PC
May 09, 2017
Category: Oral Health
JamieFoxxChipsaTooth-ThisTimebyAccident

Some people are lucky — they never seem to have a mishap, dental or otherwise. But for the rest of us, accidents just happen sometimes. Take actor Jamie Foxx, for example. A few years ago, he actually had a dentist intentionally chip one of his teeth so he could portray a homeless man more realistically. But recently, he got a chipped tooth in the more conventional way… well, conventional in Hollywood, anyway. It happened while he was shooting the movie Sleepless with co-star Michelle Monaghan.

“Yeah, we were doing a scene and somehow the action cue got thrown off or I wasn't looking,” he told an interviewer. “But boom! She comes down the pike. And I could tell because all this right here [my teeth] are fake. So as soon as that hit, I could taste the little chalkiness, but we kept rolling.” Ouch! So what's the best way to repair a chipped tooth? The answer it: it all depends…

For natural teeth that have only a small chip or minor crack, cosmetic bonding is a quick and relatively easy solution. In this procedure, a tooth-colored composite resin, made of a plastic matrix with inorganic glass fillers, is applied directly to the tooth's surface and then hardened or “cured” by a special light. Bonding offers a good color match, but isn't recommended if a large portion of the tooth structure is missing. It's also less permanent than other types of restoration, but may last up to 10 years.

When more of the tooth is missing, a crown or dental veneer may be a better answer. Veneers are super strong, wafer-thin coverings that are placed over the entire front surface of the tooth. They are made in a lab from a model of your teeth, and applied in a separate procedure that may involve removal of some natural tooth material. They can cover moderate chips or cracks, and even correct problems with tooth color or spacing.

A crown is the next step up: It's a replacement for the entire visible portion of the tooth, and may be needed when there's extensive damage. Like veneers, crowns (or caps) are made from models of your bite, and require more than one office visit to place; sometimes a root canal may also be needed to save the natural tooth. However, crowns are strong, natural looking, and can last many years.

But what about teeth like Jamie's, which have already been restored? That's a little more complicated than repairing a natural tooth. If the chip is small, it may be possible to smooth it off with standard dental tools. Sometimes, bonding material can be applied, but it may not bond as well with a restoration as it will with a natural tooth; plus, the repaired restoration may not last as long as it should. That's why, in many cases, we will advise that the entire restoration be replaced — it's often the most predictable and long-lasting solution.

Oh, and one more piece of advice: Get a custom-made mouthguard — and use it! This relatively inexpensive device, made in our office from a model of your own teeth, can save you from a serious mishap… whether you're doing Hollywood action scenes, playing sports or just riding a bike. It's the best way to protect your smile from whatever's coming at it!

If you have questions about repairing chipped teeth, please contact us or schedule an appointment for a consultation. You can also learn more by reading the Dear Doctor magazine articles “Artistic Repair of Chipped Teeth With Composite Resin” and “Porcelain Veneers.”

By David R. Robinson, DMD, PC
April 24, 2017
Category: Oral Health
KnowWhattoExpectDuringYourChildsBabyTeethPhase

At no other time in a person’s life will their teeth and mouth change as rapidly as it will between infancy and adolescence. In this short span an entire set of teeth will emerge and then gradually disappear as a second permanent set takes its place.

While the process may seem chaotic, there is a natural order to it. Knowing what to expect will help ease any undue concerns you may have about your child's experience.

The first primary teeth begin to appear (erupt) in sequence depending on their type. The first are usually the lower central incisors in the very front that erupt around 6-10 months, followed then by the rest of the incisors, first molars and canines (the “eye” teeth). The last to erupt are the primary second molars in the very back of the mouth just before age 3. A similar sequence occurs when they’re lost — the central incisors loosen and fall out around 6-7 years; the second molars are the last to go at 10-12 years.

A little “chaos” is normal — but only a little. Because of the tremendous changes in the mouth, primary teeth may appear to be going in every direction with noticeable spaces between front teeth. While this is usually not a great concern, it’s still possible future malocclusions (bad bites) may be developing. To monitor this effectively you should begin regular checkups around the child’s first birthday — our trained professional eye can determine if an issue has arisen that should be treated.

Protecting primary teeth from tooth decay is another high priority. There’s a temptation to discount the damage decay may do to these teeth because “they’re going to be lost anyway.” But besides their functional role, primary teeth also help guide the developing permanent teeth to erupt in the right position. Losing a primary tooth prematurely might then cause the permanent one to come in misaligned. Preventing tooth decay with daily oral hygiene and regular office visits and cleanings (with possible sealant protection) is a priority. And should decay occur, it’s equally important to preserve the tooth for as long as possible for the sake of the succeeding tooth.

Your child’s rapid dental development is part of their journey into adulthood. Keeping a watchful eye on the process and practicing good dental care will ensure this part of the journey is uneventful.

If you would like more information on the process of dental development in children, 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 “Dentistry & Oral Health for Children.”





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