Posts for category: Dental Procedures
While it may not be one of your favorite features in the dental office, the dental drill is nevertheless necessary for treating problem teeth. It’s used primarily for removing decayed or damaged structure and preparing a tooth for fillings or other restorations.
Dental drills have been used for decades and are quite effective — but they have their drawbacks. Their rotating burrs often remove portions of healthy tooth structure along with decayed material. Friction from the drill action can cause discomfort, so local anesthesia is usually needed. Drills can also emit a high-pitched machine noise that’s unsettling to many patients.
There’s a growing alternative to the drill, known as air abrasion. Although the technology has been around since the 1950s, the development of new suction pumps that capture the resulting dust from its use has made it more palatable as an option to the traditional drill.
Also known as particle abrasion, the technique uses a pressurized stream of fine particles (usually aluminum oxide, an abrasive powder) directed at teeth to wear away (abrade) the tooth’s structural surface. We can be quite precise in the amount of surface material removed, so it’s useful for diminishing stains or roughing the surface for bonding materials like composite resin. We’re also able to remove decayed material with very little impact on surrounding healthy structure, and you may not need anesthesia during the procedure.
While this quiet alternative to the noisier drill is quite versatile, it does have its limitations. It’s not that efficient for preparing larger cavities for restoration or for removing older amalgam fillings. The teeth to be treated must be carefully isolated to prevent the fine particle dust produced from being swallowed by the patient or spread into the air. High-volume suction equipment is a must or the procedure will create a “sandstorm” of particles in the room.
Still, for situations suited to it and with proper isolation measures, air abrasion can be effective and comfortable. If the technology continues to improve, the dental drill may soon become a relic of the past.
If you would like more information on procedures using air abrasion, 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 “Air Abrasion Technology.”
A beautiful smile is a balanced smile, especially in regard to your gums. A normal smile usually shows 4 mm or less of gum tissue along with about 10 mm of tooth length. But if your gums show more than that, your smile may seem too gummy. In terms of perceived balance, this could detract from your smile's attractiveness.
Fortunately, you don't have to live with a gummy smile—there are various ways to correct or minimize its effect. First, though, we'll need to determine the underlying cause before deciding on the best treatment. And, there are several possible causes, the obvious being too much gum tissue present. Teeth that appear shorter due to wear or incomplete eruption could also make the gums appear larger.
We may be able to correct these size problems by surgically removing and reshaping excess gum tissues and possibly the underlying bone to reveal more of the teeth. We can also bond composite resins or porcelain veneers to shorter teeth to make them appear larger.
But not all gummy smile problems pertain directly to the teeth and gums; instead, it could be your upper lip moves too far up as you smile (hypermobility). Or, your upper jaw may be too long for your face, which can also cause too much of the gums to show during smiling.
With upper lip hypermobility, we may be able to inhibit the lip muscles' movement temporarily with Botox injections that partially paralyze the muscles (the effect eventually wears off, so this treatment will need to be repeated). A periodontist, an oral surgeon, or a plastic surgeon could also permanently alter the upper lip movement through a surgical procedure. Surgery may also be necessary for an abnormally long upper jaw: orthognathic surgery re-positions the jaw to the skull, which can lessen the amount of gums showing.
If your smile is too gummy, we can transform it. But first, let's find out what the real cause is with a comprehensive dental examination. Once we know, we can better advise you on the best way to bring beautiful balance to your smile.
If you would like more information on improving a gummy smile, 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 “Gummy Smiles.”
People have depended on dentures for generations—and they still do. That's because they work, both in restoring dental function and a smile marred by missing teeth.
But they have one major drawback related to bone health. That's because living bone has a life cycle: as older cells die, new ones form to take their place. The pressure generated when we chew stimulates this growth. But when this stimulus goes missing along with the teeth, the cell replacement rate slows and bone volume and density gradually diminishes.
Traditional dentures can't transmit this chewing pressure stimulus. And because they rest directly on the gum ridges, they can adversely affect the underlying bone and actually accelerate bone loss.
But implant technology potentially solves this bone loss problem with dentures by using implants rather than the gums to support them. It's a two-fold benefit: first, the implants relieve much of the irritation to the gums and bone caused by traditional dentures. Primarily, though, the implants themselves can slow or even stop continuing bone loss.
Most implants are made of titanium, not only because it's compatible with the body, but also because it has an affinity with bone. Over time bone cells grow on the titanium post imbedded in the jawbone. This process not only creates stability and durability, it can improve bone health.
In recent years dentists have incorporated implants with dentures to create two exciting treatment options. With one option, the dentist installs two or more implants in the jaw, to which a specially fitted removable denture can be attached. You would still have the ease of removing the denture for cleaning, while gaining greater stability and a reduced risk of bone loss.
The other option is a fixed denture (or bridge) attached permanently to implants. For this option, a patient's jawbone must be adequate and healthy enough to support at least four to six implants. A fixed denture is also often costlier and more complex than a removable denture, but it can feel more like real teeth. It also promotes better bone health too.
Although both options are more expensive than traditional dentures, they can pay dividends for long-term dental health. Implants could help you enjoy your new dentures and resulting smile for a long time to come.
If you would like more information on dental implant-supported 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 “Overdentures & Fixed Dentures.”
Your front teeth are the stars of your smile — so it makes perfect sense to replace them if they’re missing. But is it really necessary to replace a largely unseen back tooth with an implant or bridgework?
The answer is an unequivocal yes. Your individual teeth are an interactive part of a dynamic mechanism that enables you to eat, speak and smile. They’re highly adaptable and can move incrementally to accommodate mouth changes — especially when one of them is lost.
Back teeth not only help us chew food efficiently, they also ease some of the pressure from front teeth as we chew. Our efficiency while chewing suffers when they’re missing; other teeth will wear faster and tend to move out of position, “drifting” into the space left by the missing tooth. And without their stimulation during chewing, new bone may grow at a slower rate to replace older bone, reducing bone volume over time.
So, whether visible or not, replacing a back tooth is the best course to take to prevent these adverse consequences. Your two best options are fixed bridgework or dental implants, each with their own advantages and disadvantages.
Bridgework has been the traditional method for replacing one or a few missing teeth: they’re long-lasting if cared for properly, have a life-like appearance that blends well with other teeth and are a good option when implants aren’t. But they require extensive altering of the anchor teeth (those used on either side of the bridge to secure it) and they’re highly prone for trapping food between them and the gums, increasing the risk of disease.
Dental implants are easily maintained and their installation doesn’t affect adjacent teeth as with a bridge. They’re also durable with a 95% success rate after ten years. On the other hand, the installation process can take several months and visits, and they require a certain amount of bone mass for proper placement and so aren’t ideal for certain patients.
Regardless of its location, if you have a missing tooth or one that may need to be removed, you should visit us for a complete examination. From there we can tell you how your mouth has been impacted by the missing tooth and which replacement option is best for you.
If you would like more information on tooth replacement options, 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 “Replacing Back Teeth.”
People with missing teeth have more replacement options than ever before, including the ever popular but often more expensive dental implant. But there has also been an expansion of choice on the more affordable side of dental restorations. The flexible removable partial denture (RPD) is one such choice.
Though RPDs have been around for some time, the newer flexible RPD offers some advantages over the more rigid traditional RPD. They’re made of a kind of nylon that’s pliable but also strong and durable. This material is thermoplastic, meaning when heated it can be injected into molds based on a patient’s individual mouth to form an accurate denture base. The gum-colored base can also be formed to cover any receded areas of the gums, which can greatly improve smile appearance.
Older versions of RPDs are made of rigid acrylic plastic that stay in place in the mouth with metal clasps that attach to remaining teeth. The flexible RPD, on the other hand, is secured with finger-like nylon extensions that fit and hold in the natural teeth’s concavities near the gum line. This, along with its relatively light weight, offers a more comfortable fit.
But aside from these benefits, flexible RPDs do have a few drawbacks. Although fracture-resistant, they’re not easy to repair or reline to readjust the fit to accommodate mouth changes. They can stain (though not as much as a traditional RPD), so they require diligent cleaning and maintenance.
We consider the whole category of RPDs as “temporary” restorations, meaning they’re intended as a transitional phase between tooth loss and a permanent restoration like a natural tooth-supported fixed bridge or dental implants. For some, however, the flexible RPD might be a more long-term solution. As mentioned before, to extend their life as much as possible they should be removed daily and cleaned thoroughly. And like any form of denture, they should not be worn overnight.
In either case, flexible RPDs offer an effective way to restore not only dental function diminished by missing teeth but an improved appearance as well. With careful maintenance, they could serve you well for some time to come.
If you would like more information on flexible partial dentures, 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 “Flexible Partial Dentures: An Aesthetic Way to Replace Teeth Temporarily.”