Posts for: January, 2015
Anytime you have a tooth that does not erupt (surface) correctly but rather stays submerged below the gum you have a problem. Sometimes this situation can cause significant pain, while other times it can be totally pain-free. When this occurs to a wisdom tooth (third molar), you have what is commonly referred to as an impacted wisdom tooth. This generally occurs when there is insufficient room in the mouth, and the wisdom tooth “impacts” or butts up against an adjacent tooth.
Third molars come in typically between the ages of 17 and 25, when a moderate amount of “wisdom” is supposedly achieved. Most people have four wisdom teeth; however, it is possible to have more or less. The key to not having issues generally depends upon one main factor: having adequate space for them to grow and erupt into proper position.
The most common consequence of having an impacted wisdom tooth is gum (periodontal) disease and damage to adjacent healthy teeth. This makes removing the impacted tooth so important. Another problem with impacted wisdom teeth is that they can affect other adjacent structures like gum, bone, nerves, blood vessels and sinuses. They can also become cystic, a condition in which the submerged tooth is surrounded by a closed sac or membrane that can cause possible infection and loss of bone.
We stress the importance of routine dental exams between the ages of 17 and 25 to catch problems with wisdom teeth before they start. The best time to remove a wisdom tooth is when it is not causing problems and the sooner and younger you are the better!
To learn more about the symptoms and treatment options of impacted wisdom teeth, continue reading the Dear Doctor magazine article “Wisdom Teeth.” Or, you can contact us today to schedule an appointment to discuss your questions.
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.”
While it doesn’t garner the star power of blood, saliva is still an important bodily fluid. A true multi-tasker, saliva contributes in many ways to the function and health of the body, from stronger teeth to more efficient digestion.
Here are six ways saliva helps your mouth and body function properly and stay healthy.
The mouth’s natural cleanser. Bacteria are responsible for much of the dental disease that plagues us, particularly tooth decay and gum disease. Saliva clears the mouth of food remnants, bacteria’s primary feeding source, after we eat. This leaves a cleaner mouth and fewer bacteria to cause infection.
The immune system’s partner. Saliva contains an antibody called Immunoglobulin A (IgA) that attacks disease-causing microorganisms. Along with secreting other antibacterial agents like lactoferrin and lyzozyme that curb the growth and development of bacteria, saliva serves as the body’s first line of defense against pathogens entering through the mouth.
Acid neutralizer. The optimal oral environment is a neutral pH of 7. Many of our foods and beverages, though, are highly acidic, which can raise the mouth’s acid level. The acidic environment causes the minerals in tooth enamel to soften and dissolve (a process called de-mineralization). Saliva restores the balance by neutralizing any remaining acid after we eat (a process that takes about 30 to 60 minutes).
Mineral replacer. Even under normal conditions, enamel will de-mineralize to some extent whenever the mouth becomes acidic. Saliva restores some of the enamel’s lost minerals like calcium and phosphate while it’s neutralizing acid. If fluoride is also present in saliva from fluoridated drinking water or toothpaste, it too is absorbed by the enamel making it stronger and more resistant to acid attacks.
Digestion enhancer. Saliva lubricates the mouth while we eat, making it easier for us to chew (and taste) our food. Saliva also releases the enzyme amylase as we chew to break down starches before the food enters our stomach. The end result is more efficient and comfortable digestion.
The wave of the future in diagnostics. Like blood and urine, saliva contains genetic and disease markers that could tell a physician if a patient has a certain condition. Since collecting a saliva sample is much easier than with these other bodily fluids, diagnosing disease with saliva will become more prevalent as more calibrated devices reach the market.
If you would like more information on the role of saliva in the body, 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 “Saliva.”
Since as many as 26 percent of older U.S. adults have lost all their teeth, there are a large number Americans who wear full removable dentures, also known as false teeth. You may be one of them.
How much do you know about dentures? See if you can answer the following questions connected with lost teeth and dentures.
- Which word refers to the loss of all permanent teeth?
- What is the name given to the bone that surrounds, supports, and connects to your teeth?
- What tissue attaches the teeth to the bone that supports your teeth?
- Periodontal Ligament
- Periodontal Muscle
- Parietal Ligament
- Achilles Tendon
- When a person loses teeth, the stimulus that keeps the underlying bone healthy is also lost, and the bone resorbs or melts away. Pressure transmitted by dentures through the gums to the bone can accentuate this process, which is called
- None of the above
- A device that replaces a missing body part such as an arm or leg, eye, tooth or teeth is referred to as
- When teeth have to be extracted, bone loss can be minimized by bone grafting. Bone grafting materials are usually a sterile powdered form of
- Allograft (human tissue)
- Xenograft (animal tissue)
- Wearers of full dentures must re-learn to manipulate the jaw joints, ligaments, nerves, and muscles to work differently in order to speak, bite, and chew. The name for this system of interconnected body mechanisms, originating with the root words for “mouth” and “jaw,” is
- Boca biting
- None of the above
- A type of plastic that is artistically formed and colored to make prosthetic teeth and gums look natural is called
- methyl methacrylate
- beta barbital
- Success in denture wearing depends on
- The skill of the dentist
- The talent of the laboratory technician
- The willing collaboration of the patient
- All of the above
Answers: 1c, 2d, 3a, 4b, 5d, 6c, 7b, 8a, 9d. How well did you do? If you have additional questions about full removable dentures, don’t hesitate to ask us.