Posts for: February, 2015
Accidents can happen to your mouth, especially if you have an active lifestyle. For example, a sudden blow to the jaw while playing sports or exercising could result in a chipped tooth. And, while the internal tooth structure may be fine, the effect on your appearance can be disheartening.
Fortunately, we have techniques and materials to restore your smile after an injury. Bonding with composite resin is one such procedure: it’s ideal for mild to moderate chipping, especially in highly visible front teeth.
Composite resin is a dental material made of various substances mixed to match the color and texture of natural teeth. The composite is usually made of inorganic glass filler blended with a plastic-based matrix and joined together with a chemical “coupling” agent. The ratio of filler to matrix will depend on the type of tooth and damage — for example, back teeth, which encounter higher biting forces, require a composite with more filler for added strength.
To begin the procedure, we first prepare the damaged tooth by applying microscopic etchings (often with a chemical solution) that create tiny depressions or “undercuts”: these help create a seamless bond between the composite and the natural tooth. We then apply the composite in layers with a bonding agent, building up layer upon layer until we’ve achieved the desired shape for the tooth involved.
Bonding with composite resins doesn’t require much tooth preparation, can be placed quickly and is relatively inexpensive. Because of the wide spectrum of color possibilities, composite resins are superior to traditional amalgam (metal) restorations in creating a more life-like appearance. Its application, however, can be limited by the amount of tooth structure needing to be replaced: because it isn’t as strong as the tooth structure it replaces, the more tooth structure the bonded composite resin attempts to replace the less likely it can stand up over time to normal bite forces.
Still, composite resins are ideal for mild to moderate damage or disfigurement. If you’ve suffered such an injury, be sure to visit us to see if bonding with life-like composites is the right solution for restoring your smile.
If you would like more information on bonding with composite resins, 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 “Repairing Chipped Teeth.”
Among the “to-do” items on your pre-dive checklist like “Pack wetsuit” or “Fill scuba tanks,” be sure to add one other: “Check my dental health status.”
While that may seem like an odd concern, the changes in atmospheric pressure you encounter while diving (or flying, for that matter) could amplify oral sensitivity and intensify pain if you have pre-existing teeth or jaw problems.
The reason for this is the effect of basic physics on the body. All anatomical structures, including organs, bones and muscles, equalize external pressures the body encounters. We don’t notice this at normal atmospheric pressure, but when we encounter an extreme — either lower pressure during air flight or higher pressure during a scuba dive — we may feel the effects of the pressure on any structure with a rigid-walled surface filled with either air or fluid. These structures can’t equalize the pressure as fast as other areas, resulting in pain or discomfort. This is known medically as “barotrauma,” or more commonly as a “squeeze.”
One structure in particular could have an effect on your upper teeth and jaws: the sinus cavities of the skull, particularly the maxillary sinuses just below the eyes. Their lower walls are right next to the back teeth of the upper jaw and, more importantly, share the same nerve pathways. It’s quite possible, then, for pain from one area to be felt in the other, commonly known as “referred pain.” A toothache could then be felt in the sinus region, and vice-versa.
During a squeeze, then, pain levels from existing problems in the teeth and jaws that were previously tolerable (or even unnoticed) may well become amplified as the pressure from the sinus cavity impinges upon the jaw. That dull toothache you’ve been having may suddenly become excruciating at 30,000 feet — or 30 meters under the surface.
That’s why it’s important to see us if you’ve experienced any signs of tooth decay, gum disease or TMD, including pain, before your next dive or air flight. And, if you encounter any significant pain while flying or diving, be sure you consult with us as soon as possible when you return. Taking action now could help you avoid a miserable, and potentially dangerous, flying or diving experience in the future.
If you would like more information on pressure changes and dental health, 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 “Pressure Changes can Cause Tooth and Sinus Pain.”
Dry mouth is a condition that many of us have experienced at some point in life. However, for some people it is a problem that can wreak havoc on their lives. This is why we have put together this list of questions we are most frequently asked about dry mouth.
What is dry mouth?
The medical term for dry mouth is “xerostomia” (“xero” – dry; “stomia” – mouth) and it affects millions of people in the US alone. It is caused by an insufficient flow of saliva, the liquid produced by the salivary glands. These glands are located in the inside cheeks of the mouth by the back top molars and in the floor (under the tongue) of the mouth. When functioning properly, they produce two to four pints of liquid every 24 hours.
Can drugs contribute to dry mouth?
Yes, both prescription and over-the-counter (OTC) drugs can cause dry mouth. This is one reason we so often find it in senior citizens, as they are typically on more medications than younger, healthier people.
What about diseases...can they cause dry mouth?
Certain systemic (general body) and autoimmune (“auto” – self; “immune” – resistance system) diseases, in which the body reacts against its own tissue, can cause dry mouth. Other diseases that can be the culprit include: diabetes, Parkinson's disease, cystic fibrosis, and AIDS (Acquired Immune Deficiency Syndrome). Radiation and chemotherapy used to treat head and neck cancers can inflame, damage or destroy the salivary glands—thus causing dry mouth.
Are there any remedies for dry mouth?
Yes! If medication is the primary cause of your dry mouth, there may be other, similar drugs that can be substituted that do not produce the same side effect. If you feel this describes your situation, discuss your concerns with the prescribing physician. Another option is taking an OTC or prescription saliva stimulant to temporarily relieve the dryness. Or, you can suck on a candy made with xylitol, a natural sugar substitute, four to five times a day. Xylitol has been shown to help stimulate the production of saliva with the added benefit of reducing the odds of getting cavities.
Every February, the American Dental Association sponsors a campaign called National Children’s Dental Health Month. The purpose of this operation is to raise awareness about how important it is to get an early start on developing good dental hygiene habits — and how this can lead to a lifetime of healthy teeth and gums. So we thought this might be a good time to answer some of the most frequently asked questions about how to do exactly that:
When is it time to start cleaning my baby’s teeth?
As soon as you see one! The earlier your child gets used to a daily dental hygiene routine, the better. Baby teeth that have not fully emerged from beneath the gums can be wiped with a clean, moist washcloth after feedings. A tooth that has grown in completely should be brushed twice daily (once in the morning and once in the evening) with a soft, child-sized tooth brush and a thin smear of fluoride toothpaste. Fluoride is an important weapon against tooth decay, but you don’t want your child to swallow too much.
Can babies get cavities?
Absolutely — especially if they are allowed to fall asleep routinely with a bottle filled with anything but water. Milk, formula — even breast milk — all contain sugars that should not be left to pool around your baby’s teeth during sleep, facilitating decay. Juice is an even bigger no-no because it is not only sugary but also acidic.
Can’t I give my child sweets once in a while?
We realize total avoidance of sweets may not be realistic, as beneficial as this would be for your child’s teeth. If you are going to allow your child to have sweets once in a while, better that the treat be given immediately following a meal, and not as a between-meal snack. Soda should really be avoided completely — it’s that bad.
When should I take my child to the dentist for the first time?
The experts say: Get it done in year one. That’s right — even though your child won’t have many teeth by age 1, there’s a lot we can do at that first visit to ensure good oral health now and well into the future. We will do everything possible to make sure your little one has a positive first experience in the dental chair; this helps set the tone for the many important preventive visits yet to come. It’s also a great opportunity for you to ask any specific questions you may have, and receive hands-on instruction on how to care for your child’s teeth and gums.
If you would like more information about children’s oral health, please contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Taking the Stress Out of Dentistry for Kids” and “Age One Dental Visit.”