Posts for: January, 2015
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.”
Imagine how different things would have been for movie star James Dean, had he not managed to replace the front teeth he lost as a youngster. According to one biography of the 1950s heartthrob, Dean's teeth were knocked out while he was swinging around on a homemade trapeze. Because his smile was restored, Dean was able to land the plumb movie roles that catapulted him to stardom.
This is perhaps the ultimate example of how a smile makeover can create new opportunities for a person. But opinion polls confirm that nearly 90% of adults feel an attractive smile is an important social and career asset. And, an almost equal percentage of adults feel that their smile could use some improvement.
Are you unhappy with your smile? Is a smile makeover something you've ever thought about? Dear Doctor magazine has come up with a great list of questions you can ask yourself to figure out if you would benefit from this life-changing experience:
- Do you avoid smiling in photos?
- Are you conscious about spaces and gaps in your teeth?
- Are your teeth making you look older than you feel?
- Have you held back a smile?
- Do you feel that your teeth are stained or too yellow?
- Do you hold your hand up in front of your mouth when speaking or laughing?
- Do you notice areas of excessive tooth wear that make your smile look older?
- Do you have little teeth and a gummy smile?
- Are your teeth crooked, chipped or crowded?
- Do you wish you had someone else's smile?
If you answered “yes” to any of these questions, please come in and see us. We have an amazing array of cosmetic procedures available to us — far more than what was available to James Dean in the 1950s. These options range from relatively inexpensive teeth whitening treatments to more permanent cosmetic solutions such as porcelain crowns and veneers. Together we can come up with a plan to give you the smile you've always dreamed about.
If you would like more information about what a smile makeover could mean for you, please contact us or schedule an appointment. You can learn more about smile makeovers by reading the Dear Doctor magazine article “Beautiful Smiles by Design.” Dear Doctor also has more on “The Impact of a Smile Makeover.”