Posts for tag: fillings
Silver amalgam fillings, once the only option if you had a cavity, are being replaced by more natural-looking tooth-colored fillings. Stamford CT, dentists Dr. Irina Pogosian and Thomas Ohlson of Comprehensive Dental Group provide the dental treatments and services you need to keep your smile in good condition, including tooth-colored fillings.
Tooth-colored fillings are an excellent alternative to silver amalgam fillings
Although silver-amalgam fillings have been used for years, they have several disadvantages, including:
- Appearance: The fillings are noticeable when you eat, speak or laugh. In some cases, they may affect the appearance of your tooth. A shadow from a large silver amalgam filling may make your tooth look darker. Teeth restored with the fillings may also darken if the amalgam material begins to leak into your tooth enamel.
- Cracks: The metals in silver amalgam expand and contract when you consume hot and cold foods and beverages. After many years, your teeth may develop cracks due to the regular expansion and contraction. Cracks can let bacteria into your teeth and increase the risk of a tooth fracture.
Tooth-colored fillings contain no metals and don't change the appearance of your teeth. They're composed of composite resin, a flexible material made of powdered glass and plastic that's tinted to match common tooth shades. Once the composite resin is added to your tooth, it's hardened by applying a curing light to your tooth for a short period of time.
Expansion and contraction isn't a problem with tooth-colored fillings. Because composite resin contains no metals, your filling doesn't change no matter what you eat or or drink. During the filling process, your dentist must remove a certain amount of healthy tooth structure surrounding the decayed part of your tooth. Tooth-colored fillings only require the removal of a small amount of the structure, unlike silver amalgam fillings. As a result, your tooth remains strong after you receive your filling.
Restore your teeth with tooth-colored fillings! If you're concerned about a cavity, call Stamford CT, dentists Dr. Irina Pogosian and Thomas Ohlson of Comprehensive Dental Group at (203) 359-3296 to schedule an appointment.
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.”