Posts for category: Dental Procedures
Today’s crowns, the visible part of a tooth replacement system, can effectively mimic the shape and color of natural teeth. But not all crowns are equal — so it’s best to be well-informed before you undergo a restoration on your natural teeth such as a single crown or bridgework — or if you need a crown on a dental implant that replaces a missing tooth.
To give you a starting point, here are 3 things to keep in mind about crowns as you consider a dental restoration.
Material composition. Most crowns in years past were made of a precious metal, most notably gold. What it lacked in appearance, it made up for in performance and durability. In recent years, dental porcelain has become the popular choice because of its ability to mimic the appearance and translucent color of natural teeth. Today’s porcelains are much stronger and are used more frequently for back teeth than in years past. A common recommendation for back teeth is a hybrid crown using metal and porcelain. Metal is incorporated beneath the porcelain in this type of crown to create a strong foundation and is also used along biting surfaces for strength. Porcelain is used in the more visible areas for esthetics.
The dental technician’s level of artistry. Most dentists sub-contract crown fabrication to dental laboratory technicians who may have varying levels of experience and artistic ability. A highly skilled technician can produce a crown that blends seamlessly with the patient’s remaining natural teeth.
Take a “test drive” of your future smile. Although we as dentists adhere to certain aesthetic principles, beauty is ultimately subjective — “in the eye of the beholder.” The final product must meet your expectations and level of comfort. If available, then, consider wearing temporary “trial smile” crowns as a preview of your new smile while your permanent set is under construction. This allows you to “try out” your future smile ahead of time, so you can make recommendations and sign off on the final set before it’s finished.
Undertaking any dental restoration is an important life step, both for your health and appearance. Being well-informed — especially about the crowns that you and others will see — will help you make wise choices that lead to a satisfying outcome.
As tough as teeth are, life can take its toll on them and sometimes lead to parts of them chipping off. Although it might not affect a tooth's overall health, it can certainly downgrade its appearance.
But we can restore a chipped tooth like new, and it may not require extensive dental work. Thanks to a versatile dental material called composite resin, we can often bring back a tooth's natural appearance in just one visit.
Tooth-colored resins have been around for decades, but their application has been limited due to issues with durability. Recently developed bonding techniques, though, have made them a workable option for restoring mild to moderate tooth defects.
We do this by applying and bonding the composite resin to a tooth to “fill in” the missing portion. While it's often a short process, it does require a thorough understanding of tooth anatomy, function and aesthetics.
We begin with a comprehensive exam to assess the true condition of a chipped tooth. Some dental defects might be better served with a porcelain restoration like a veneer or crown for best results. Still, there are a wide range of defects for which composite resins is a solid repair choice.
Once we've determined bonding is appropriate, we prepare the tooth by first roughening its outer surface and then etching it with an acid solution to increase bonding strength. We then apply a luting agent, a kind of dental cement, also to aid with bonding.
We then begin applying the composite resin in liquid form, one layer at a time. This layering process helps simulate the color depth and shape of the tooth, and to further incorporate strength into the restoration. We're also careful at this point to match the variations of color with those of the surrounding teeth so that it looks as natural as possible.
As we finish each layer, we apply a curing light to harden the resin. We can then polish the finished product and make adjustments for the bite. The end result is a tooth that not only looks whole, but natural and blended with the rest of your teeth. Bonding could truly change your smile in just one visit.
If you would like more information on cosmetic 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 “Artistic Repair of Front Teeth With Composite Resin.”
Today’s technologically advanced dentures aren’t your grandparents’ “false teeth.” Now made with superior materials and processes, you could almost forget you’re wearing them. But don’t let that cause you to leave them in for the night: While it may seem like a harmless thing to do, wearing dentures 24/7 may not be good for them or your health.
For one thing, around the clock denture wearing could worsen bone loss, already a concern with dentures and missing teeth. The forces generated when we chew on natural teeth stimulate new bone growth to replace older bone cells. When teeth go missing, though, so does this stimulus. Even the best dentures can’t restore this stimulation, so bone loss remains a risk.
And, dentures can accelerate bone loss because of the added pressure they bring to the bony gum ridges that support them. Wearing them all the time deprives the gums of any rest, further speeding up the pace of bone loss. Losing bone volume not only affects your overall oral health, it will gradually loosen your dentures’ fit and make them uncomfortable to wear.
Another problem: You may clean your dentures less frequently if you don’t take them out at night. Lack of cleaning can encourage bacterial growth and lead to disease. Studies show that people who don’t take their dentures out at night have more dental plaque accumulation, gum inflammation and higher blood counts of the protein interleukin 6, indicating the body is fighting infection.
And that’s not just a problem for your mouth. Continuous denture wearing could make you twice as likely to develop life-threatening pneumonia as someone who routinely takes their dentures out.
These and other concerns make nightly denture removal a good practice for your health’s sake. While they’re out, it’s also a good time to clean them: Manually brush them for best results (be sure you’re only using regular soap or denture cleanser—toothpaste is too abrasive for them). You can then store them in clean water or a solution designed for dentures.
Having said all that, though, there may be one reason why wearing dentures at night might be beneficial—it may help prevent obstructive sleep apnea. If you have this condition, talk to your dentist about whether wearing your dentures at night has more advantages than disadvantages. And, if bone loss created by wearing dentures is a concern, it could be resolved by having implants support your dentures. Again, discuss this with your dentist.
Taking care of your dentures will help increase their life and fit, and protect your health. And part of that may be taking them out to give your gums a rest while you’re resting.
If you would like more information on denture care, 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 “Sleeping in Dentures.”
Besides their life-likeness, implants are also prized for their high success rate. More than ninety-five percent of implants continue to function effectively after ten years.
Implants’ advanced technology explains some of their reliability and longevity—they’re as close to natural teeth as we’re now able to achieve. But their impressive success rate also owes to the detailed protocols that dentists follow to install them. One critical part of these protocols is ensuring a patient has enough bone in their jaw to support and precisely situate the implant for the best functional and aesthetic outcome.
Unfortunately, there are situations where a patient doesn’t have enough bone to achieve a satisfactory result. This often happens if there’s been months or years between losing the tooth and considering an implant. The reason why relates to the nature of bone as living tissue.
Like other cellular tissues in the body, bone has a life cycle: Older, worn-out cells die and are absorbed by the body, and new cells form to replace them. The growth cycle in the jaw receives stimulation from the forces generated when we chew, which travel up through the teeth to the bone.
However, this stimulation stops after tooth loss for the related area of bone, which can slow new bone growth. Over time, the volume and density of the bone around a missing tooth gradually decreases, enough eventually to make an implant impractical.
Insufficient bone volume, though, doesn’t necessarily mean an implant is out of the question. We may be able to address the problem by attempting to regenerate the bone through grafting. This is a procedure in which we insert graft material into the affected area of the jawbone. The graft then becomes a scaffold upon which bone cells can grow. After several months, we may have enough regenerated bone to support an implant.
If there’s been too much bone loss, we may still need to consider another form of restoration. But if we can successfully build up the bone around your missing tooth, this premier restoration for replacing lost teeth could become a reality for you.
Bright, naturally white teeth are a key component in a beautiful smile. But the opposite is also true: nothing diminishes an otherwise attractive smile more than stained or discolored teeth.
There is good news, however, about tooth staining: it can be greatly reduced with the right whitening technique. But before taking action we need to first uncover the cause for the staining — whether from the outside or inside of the tooth, or a combination of both.
If it’s an external cause — known as extrinsic staining — our diet is usually the source. Foods and beverages that contain tannins, like red wine, coffee or tea fall in this category, as do foods with pigments called carotenes as found in carrots and oranges. Besides limiting consumption of stain-causing foods and maintaining daily oral hygiene, you can also diminish extrinsic staining with a bleaching application.
There are two basic ways to approach this: with either a professional application at our office or with a home kit purchased at a pharmacy or retail store. Although both types use similar chemicals, the professional application is usually stronger and the whitening effect is obtained quicker and may last longer.
Discoloration can also occur within a tooth, known as intrinsic staining, and for various reasons. It can occur during tooth development, as with childhood overexposure to fluoride or from the antibiotic tetracycline. Poor development of enamel or dentin (the main sources of natural tooth color), tooth decay, root canal treatments or trauma are also common causes of intrinsic discoloration.
There are techniques to reduce the effects of intrinsic staining, such as placing a bleaching agent inside the tooth following a root canal treatment. In some cases, the best approach may be to restore the tooth with a crown or porcelain veneer. The latter choice is a thin layer of dental material that is permanently bonded to the outer, visible portion of the tooth: it’s life-like color and appearance covers the discoloration, effectively renewing the person’s smile.
If you’ve been embarrassed by stained teeth, visit us for a complete examination. We’ll recommend the right course of action to turn your dull smile into a bright, attractive one.
If you would like more information on treatments for teeth staining, 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 “Teeth Whitening.”