My Blog
By Kok-Tow Ng, DDS
October 14, 2017
Category: Dental Procedures
TheCaseforMovingJustaFewTeethOrthodontically

We often associate orthodontics with moving several teeth on the upper or lower arches (or both) with braces or clear aligners. But not all patients require a major endeavor — sometimes only one or a few teeth need to be moved, and not very far.

A slight gap between the two upper front teeth is one type of situation that only requires minor tooth movement: just a few teeth need to be moved and usually just a millimeter or two. The appliances needed to achieve this are also relatively simple in design: removable retainers or small scale fixed braces with small springs or elastics that place pressure against the teeth. The process may also only take a few months rather than two years as with major tooth movement.

Preparing for the procedure, though, must be undertaken with great care. We need to first determine if moving the teeth even slightly could affect the bite with the opposite teeth. We must also ensure the roots of the teeth intended for movement are in good position for allowing the space to be closed.

We must then consider the other supporting structures for the teeth. It’s important for gums and bone to be healthy — if not, treating any found disease may be necessary first before beginning orthodontics. And, if the gap between the two upper teeth was created by an abnormally large frenum, the small strip of tissue connecting the lip to the upper gum, it may be necessary to remove it before tooth movement can begin to ensure the closed gap stays closed.

Like any other orthodontic treatment, minor tooth movement first requires a thorough examination with x-ray imaging to determine the exact tooth position, bite issues and the surrounding gum and bone health. We can then be reasonably certain if this straightforward procedure is right for you, and could help you obtain a more attractive smile.

If you would like more information on different orthodontic treatment choices, 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 “Minor Tooth Movement.”

By Kok-Tow Ng, DDS
September 29, 2017
Category: Dental Procedures
Tags: celebrity smiles   crowns  
DentalCrownsfortheKingofMagic

You might think David Copperfield leads a charmed life:  He can escape from ropes, chains, and prison cells, make a Learjet or a railroad car disappear, and even appear to fly above the stage. But the illustrious illusionist will be the first to admit that making all that magic takes a lot of hard work. And he recently told Dear Doctor magazine that his brilliant smile has benefitted from plenty of behind-the-scenes dental work as well.

“When I was a kid, I had every kind of [treatment]. I had braces, I had headgear, I had rubber bands, and a retainer afterward,” Copperfield said. And then, just when his orthodontic treatment was finally complete, disaster struck. “I was at a mall, running down this concrete alleyway, and there was a little ledge… and I went BOOM!”

Copperfield’s two front teeth were badly injured by the impact. “My front teeth became nice little points,” he said. Yet, although they had lost a great deal of their structure, his dentist was able to restore those damaged teeth in a very natural-looking way. What kind of “magic” did the dentist use?

In Copperfield’s case, the teeth were repaired using crown restorations. Crowns (also called caps) are suitable when a tooth has lost part of its visible structure, but still has healthy roots beneath the gum line. To perform a crown restoration, the first step is to make a precise model of your teeth, often called an impression. This allows a replacement for the visible part of the tooth to be fabricated, and ensures it will fit precisely into your smile. In its exact shape and shade, a well-made crown matches your natural teeth so well that it’s virtually impossible to tell them apart. Subsequently, the crown restoration is permanently attached to the damaged tooth.

There’s a blend of technology and art in making high quality crowns — just as there is in some stage-crafted illusions. But the difference is that the replacement tooth is not just an illusion: It looks, functions and “feels” like your natural teeth… and with proper care it can last for many years to come.  Besides crowns, there are several other types of tooth restorations that are suitable in different situations. We can recommend the right kind of “magic” for you.

If you would like more information about crowns, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine articles “Crowns & Bridgework” and “Porcelain Crowns & Veneers.”

ClearAlignersMakeitEasierforTeenagerstohaveTheirTeethStraightened

Braces can change a person's life — not just their appearance but their dental health as well. To be honest, though, wearing braces are, well, kind of a drag — especially for teenagers.

Braces can be restrictive and confining; you'll also have to give up certain favorite foods for a while. But more than any of that, they're just plain unattractive. Even being able to choose colors for the brackets and elastic bands can't fully ease a teenager's embarrassment when they smile.

There is, however, an alternative to braces: clear aligners. And they could make orthodontic treatment during this difficult phase of their life much easier to handle.

Clear aligners are a set of clear plastic trays that can be taken in and out of the mouth. Each of the custom-designed trays is slightly smaller than the previous one in the series. After wearing the first tray for a couple of weeks (at least 20 to 22 hours a day), the patient switches to the next tray in the series. They repeat this process until they've worn all the trays. The gradual change from tray to tray moves the teeth to the desired position.

Clear aligners have some distinct advantages over braces, especially for younger patients. They can be removed for cleaning or for a rare special event. They don't limit movement as much as braces. And, they're nearly invisible — other people may not even notice them. And newer aligners are now designed with tiny “power ridges” that increase their movement capabilities. This has made them more useful for teenagers with complicated bite problems and other issues.

There are cases, though, where braces may be the better choice: where you need more control over tooth movement or the patient needs jaw surgery to achieve proper tooth alignment. And their removability could be an issue if the patient won't leave them in their mouth for the necessary time each day.

To find out if clear aligners might be a viable option for your teenager, visit us for a complete orthodontic examination. We can then discuss your best option — clear aligners or braces — to achieve the most desirable outcome for your teenager.

If you would like more information on treating bite problems in teenagers with clear aligners, 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 “Clear Aligners for teens.”

26MillionFansLikeJustinBiebersChippedTooth

Is a chipped tooth big news? It is if you’re Justin Bieber. When the pop singer recently posted a picture from the dental office to his instagram account, it got over 2.6 million “likes.” The snapshot shows him reclining in the chair, making peace signs with his hands as he opens wide; meanwhile, his dentist is busy working on his smile. The caption reads: “I chipped my tooth.”

Bieber may have a few more social media followers than the average person, but his dental problem is not unique. Sports injuries, mishaps at home, playground accidents and auto collisions are among the more common causes of dental trauma.

Some dental problems need to be treated as soon as possible, while others can wait a few days. Do you know which is which? Here are some basic guidelines:

A tooth that’s knocked out needs attention right away. First, try and locate the missing tooth and gently clean it with water — but avoid holding the tooth’s roots. Next, grasp the crown of the tooth and place it back in the socket facing the correct way. If that isn’t possible, place it between the cheek and gum, in a plastic bag with the patient’s saliva or a special tooth preservative, or in a glass of cold milk. Then rush to the dental office or emergency room right away. For the best chance of saving the tooth, it should be treated within five minutes.

If a tooth is loosened or displaced (pushed sideways, deeper into or out of its socket), it’s best to seek dental treatment within 6 hours. A complete examination will be needed to find out exactly what’s wrong and how best to treat it. Loosened or displaced teeth may be splinted to give them stability while they heal. In some situations, a root canal may be necessary to save the tooth.

Broken or fractured (cracked) teeth should receive treatment within 12 hours. If the injury extends into the tooth’s inner pulp tissue, root canal treatment will be needed. Depending on the severity of the injury, the tooth may need a crown (cap) to restore its function and appearance. If pieces of the tooth have been recovered, bring them with you to the office.

Chipped teeth are among the most common dental injuries, and can generally be restored successfully. Minor chips or rough edges can be polished off with a dental instrument. Teeth with slightly larger chips can often be restored via cosmetic bonding with tooth-colored resins. When more of the tooth structure is missing, the best solution may be porcelain veneers or crowns. These procedures can generally be accomplished at a scheduled office visit. However, if the tooth is painful, sensitive to heat or cold or producing other symptoms, don’t wait for an appointment — seek help right away.

Justin Bieber earned lots of “likes” by sharing a picture from the dental office. But maybe the take-home from his post is this: If you have a dental injury, be sure to get treatment when it’s needed. The ability to restore a damaged smile is one of the best things about modern dentistry.

If you have questions about dental injury, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Repairing Chipped Teeth” and “Porcelain Crowns & Veneers.”

OrthodontistscanUseOtherToolswithBracesforComplexBiteProblems

Braces utilize the mouth’s existing teeth-moving mechanism by applying pressure in the direction of the desired movement. This is done with a wire laced through metal brackets affixed to the outside of the teeth that’s then usually anchored to brackets on the back teeth to maintain constant tension.

This anchorage set-up alone, however, may not work effectively with all bite situations, which might require other points of anchorage. That’s where these other tools in the orthodontist’s toolkit can come in handy.

Headgear. These appliances not only aid with moving teeth but they also help influence the proper growth of facial structures (as when one of the jaws is too far forward or too far back). Because of this influence on jaw growth you’ll only find them used with pre-teens. The most typical application is a strap running around the back of the head or neck (or sometimes over the chin or forehead) that attaches in the front to brackets usually bonded to the molars. In this case the back of the patient’s skull serves as the anchor point.

Temporary anchorage devices (TADs). Orthodontists sometimes wish to isolate the teeth to be moved from nearby teeth that shouldn’t be. For example, they may want to move front teeth back to close a space without the back teeth moving forward. In this case, it may be necessary to create a separate anchorage point in the jaw. This can be done with TADs, which are made of either biotolerant (stainless steel, chromiumâ??cobalt alloy), bioinert (titanium, carbon), or bioactive (hydroxyapatite, ceramic oxidized aluminum) materials and shaped like mini-screws. Orthodontists insert them into the bone and then attach them to the braces using elastics (rubber bands). After completing orthodontic treatment they’re easily removed.

Elastics. We’ve already mentioned them, but elastics deserve their own category because they can be used in various kinds of anchorage. They play an important role, for example, in cross-arch anchorage that maintains tension between the upper and lower jaws. They can also be used to help move one or more groups of teeth — or isolate certain teeth from moving. They truly are flexible (no pun intended) in their uses for fine-tuned tooth movement.

All these devices can be used in various combinations to match and correct whatever bite situation a patient may have. The end result is straighter and better-functioning teeth — and a more attractive smile.

If you would like more information on orthodontic treatment, 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 “Orthodontic Headgear & Other Anchorage Appliances.”





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