Posts for: October, 2018
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.
Along with thumb sucking, childhood teeth grinding is one of the top concerns anxious parents bring to their dentists. It’s so prevalent, though, many providers consider it normal behavior—the sleep-disturbing sound it can generate is often the worst consequence for the habit.
But that doesn’t mean you should brush aside all concern, especially if the habit continues into late childhood. Long-term teeth grinding could eventually damage the teeth and gums.
Teeth grinding (or clenching) is the involuntary movement of the jaws when not engaged in normal functions like chewing, speaking or swallowing. The action often produces higher than normal chewing forces, which over time can accelerate tooth wear, cause fractures, or contribute to loose teeth, all of which could increase the risk of dental disease. While it can occur at any time it’s most common among children during nighttime sleep.
While stress is the usual trigger for teeth grinding in adults, with young children the causes for the habit are more complex and less understood. Most doctors hold to the theory that most pediatric teeth grinding arises during shifts from lighter to heavier, rapid-eye-movement (REM) sleep. The child’s immature neuromuscular chewing control may engage involuntarily during this shift. Teeth grinding is also prevalent among children who snore or mouth-breathe, or who take anti-depressant medication.
But as mentioned before, there’s usually no cause for concern unless the habit persists beyond about age 11. If the habit isn’t fading, you should speak to your dentist about ways to reduce it or its effects. One way is with a custom-made night guard worn during sleep. The smooth, plastic surface of the appliance prevents teeth from making solid contact with each other during a grinding episode.
You might also seek treatment from an ear, nose and throat (ENT) specialist if your child is having issues with airway obstruction, which could also relieve teeth grinding. And children experiencing stressful situations or events may find relief both emotionally and physically from psychological therapy.
At younger ages, you can safely regard your child’s grinding habit as normal. But if it persists, it’s worth looking for ways to reduce it.
If you would like more information on your child’s teeth grinding habit, 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 “When Children Grind Their Teeth: Is the Habit of ‘Bruxism’ Harmful?”
When you first received your removable dentures the fit was firm and comfortable. Lately, though, they’ve become loose, making it difficult to eat or speak without slippage.
The problem may not be with your denture, but with bone loss. Human bone goes through a natural cycle of dissolving (known as resorption) and new growth to take the lost bone’s place. The jawbone receives further stimulation to grow from the forces generated by natural teeth when we bite or chew.
When natural teeth are missing, however, the jawbone lacks this stimulation, which over time results in bone loss and gum tissue shrinkage. Traditional dentures can’t transmit this stimulating force to the jawbone either, so the bone and gum structure under a denture will also shrink. This results in a looser fit for the denture.
The simplest option to correct a loose-fitting denture (especially if it’s the first occurrence) is to reline the dentures with additional material to re-form the fit to the new conditions in the mouth. A permanent relining will require sending your dentures to a dental laboratory to apply the new material based on a mold of your current anatomy beneath the denture.
If, however, your dentures have already undergone a few relinings, or after examining your gums we determine a relining won’t provide the fit and stability needed, then it may be time for a new denture. Although this is more costly than a relining, a new appliance could provide a more accurate fit to the current contours in your mouth.
The latter option may also give you a chance to benefit from advancements in denture technology or materials since you received your current denture. One such advancement is a removable denture that’s supported by implants. It’s possible to achieve this new supporting foundation for the denture with as few as two strategically-placed implants in the lower jaw.
If you’ve begun to notice denture looseness, be sure to make an appointment for an examination. From there, we can advise you on what will work best in your particular case.
If you would like more information on your options regarding removable 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 “Loose Dentures.”