Posts for: January, 2015
1. What is dental erosion?
a. tooth decay; b. dissolving of tooth enamel by acids in food or drink; c. destruction of tooth material by wear; d. attacks on teeth by bacteria
2. Which of these drinks does not cause dental erosion?
a. orange juice; b. cola drinks; c. water; d. energy drinks
3. Soda sweetened with artificial sweeteners does not cause dental erosion.
a. true; b. false
4. Brushing your teeth immediately after consuming acidic food or drinks may make erosion worse.
a. true; b. false
5. Waiting after consuming acidic foods or drinks allows time for your saliva to neutralize the acid and add calcium back to the enamel in your teeth.
a. true; b. false
6. How long should you wait before brushing after consuming acidic foods or drinks?
a. 10 minutes; b. 20 minutes; c. 30 minutes to an hour d. eight hours
7. Loss of tooth surface material due to dental erosion is reversible.
a. true; b. false
8. People who suffer from bulimia, a psychological condition in which they frequently induce vomiting, often develop severe dental erosion from stomach acid.
a. true; b. false
9. What is the meaning of a low pH value?
a. high pH means high acidity; b. low pH means high acidity; c. neutral pH means high acidity; d. none of the above
10. Properties of a beverage that define their likelihood to erode your teeth are its acidity and its buffering capacity (resistance to being neutralized by saliva.)
a. true; b. false
11. Cola beverages, sports and energy drinks, and fruit juices have a low pH and high buffering capacity. What other factors determine their likelihood of causing dental erosion?
a. acid concentration; b. drinking them more frequently; c. swishing them around in your mouth; d. all of the above
12. How can you reduce dental erosion from the beverages you drink?
a. drink acidic beverages only at mealtimes and not all day long; b. drink beverages with added calcium; c. sip drinks through a straw to reduce contact with your teeth; d. all of the above
Answers: 1b, 2c, 3b, 4a, 5a, 6c, 7b, 8a, 9b, 10a, 11d, 12d
How did you score on our quiz? We hope you gained some information that will help you reduce dental erosion and preserve your teeth’s vital protective enamel.
There’s more to tooth loss than you might think. Because teeth are part of a larger system that facilitates speaking, eating and digestion, a lost tooth could eventually affect your overall health.
Tooth loss is actually about bone loss. As living tissue, bone continually reforms in response to stimuli it receives from the body. The alveolar bone (which surrounds and supports the teeth) receives such stimuli as the teeth chew and bite, as well as when they contact each other. All these stresses — hundreds a day — transmit through the periodontal ligament to the bone, stimulating it to grow and remodel.
A lost tooth reduces this stimulation and causes the alveolar bone to resorb (dissolve) — as much as 25% of its width the first year alone. Unless the process is stopped, the underlying basal bone and the periodontal (gum) tissue will begin to resorb too. Without this structural support the facial height shrinks and the front teeth begin to push forward, making chewing and speaking more difficult. These teeth begin performing functions outside their normal range, leading to damage and possible loss.
The primary goal of oral hygiene and dental care is to prevent tooth loss. When tooth loss does occur, however, it’s then important to restore the lost tooth with an artificial replacement if at all possible — not only to regain form and function, but to also stop further bone loss.
While the fixed partial denture (FPD), also known as a fixed bridge, has been the restoration of choice for many decades, dental implants may be the better long-term option. Although more expensive initially, implants can achieve a life-like restoration without involving or altering adjacent teeth as with FPDs. Plaque retention and tartar accumulations are much less likely with an implant, and the bone-loving quality of titanium, the metal used for implants, actually encourages bone growth. As a result, implants have a much higher longevity rate than FPDs.
Taking care of your teeth through effective hygiene practices and regular checkups may help you avoid tooth loss altogether. But if it can’t be avoided, restoring lost teeth is the single most important thing you can do to prevent even greater problems down the road.
If you would like more information on dental implants, 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 “The Hidden Consequences of Losing Teeth.”
A critical part of effective, daily oral hygiene, flossing removes bacterial plaque from between teeth that can’t be accessed with brushing. Unfortunately, it’s often neglected — string flossing requires a bit more dexterity than brushing and can be difficult to do properly.
It can be even more difficult for people with implants or who wear orthodontic appliances. For brace wearers in particular, getting access to areas between teeth with string floss is next to impossible; the metal brackets and tension wire also have a tendency to catch and retain food debris that’s difficult to remove with brushing alone.
Water flossing, using a device called an oral irrigator, is an effective alternative that addresses many of these difficulties. First available for home use in the 1960s, an oral irrigator delivers pulsating water at high pressure through a handheld applicator that forcefully flushes material from between teeth.
There’s no question that string flossing is effective in plaque removal between teeth — but what about oral irrigators? A 2008 study looked at a group of orthodontic patients with braces who used oral irrigators and compared them with a similar group that only brushed. The study found that five times as much plaque was removed in the group using the oral irrigators as opposed to the group only brushing.
Oral irrigators may also be effective for people who’ve developed periodontal (gum) disease. In fact, oral irrigators coupled with ultra-sound devices are routinely used by dental hygienists to remove plaque and calculus (hardened plaque deposits) in periodontal patients. As with regular oral hygiene, though, it’s important for patients with gum disease to include water flossing with daily brushing (at least twice a day) and regular cleaning sessions at the dentist to ensure removal of all plaque and calculus.
If you’re interested in using an oral irrigator, be sure to consult with us at your next appointment. Not only can we recommend features to look for in equipment, but we can also instruct you on the techniques to make water flossing an effective plaque remover.
If you would like more information on water flossing, 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 “Cleaning Between Your Teeth.”
It takes a lot of skill, experience, talent and artistry to create tooth restorations that look so natural that no one can tell them apart from the originals. To do so requires understanding of the normal anatomy of a tooth as well as of the interactions of light and color.
How the anatomy of a tooth determines color
The color that we perceive when looking at a tooth results from the combined appearance of the tooth’s center core (dentin layer) and its covering enamel. Going from the outside in, the enamel is made of tightly packed crystals of calcium, which cause it to be one of the hardest substances naturally produced by animals. The crystals are also responsible for a tooth’s brilliance and translucence. The dentin is more like bone, a porous living tissue composed of microscopic tubes, interspersed with more calcium crystals. In the very center of the tooth is a central chamber containing the pulp and nerves.
Each of these layers has its own physical and optical properties. Since the enamel is translucent and the dentin is more opaque, most of the tooth’s color comes from the dentin and is transmitted through the enamel layer. Factors that affect this transmission include the thickness and age of the enamel as well as external tooth whitening.
If the enamel is more translucent, more of the color of the dentin shows through. If it is more opaque, the enamel absorbs and reflects light so that less color is visible and the enamel looks brighter.
The language of color composition and reflected light
Color means the whole spectrum in the rainbow. The spectrum is made up of the three primary colors — red, blue, and green. When all are combined, they create white light.
Hue refers to the brightest forms of the colors. The color we perceive depends on the dominant wavelength of light that is reflected by an object.
Value refers to a color’s lightness or darkness. A brighter color has a higher value.
Chroma is the amount of identifiable hue in a color. An achromatic color (without hue) appears gray.
Saturation is a measure of a color’s intensity.
This terminology of color is used not only by dentists and dental technicians, but also by a wide range of artists. It implies expertise and understanding of how colors work, how they vary and change and affect one another.
Contact us today to schedule an appointment or to discuss your questions about bonding to repair chipped teeth. You can also learn more by reading the Dear Doctor article, “Artistic Repair of Front Teeth with Composite Resin.”