Our teeth

Most people know that the teeth are the hardest and strongest part of the body. There's more than meets the eye, though. Teeth are actually a living part of your body that has blood vessels and nerves. If you used to judge your teeth like a book by its cover, then you're in for one big surprise. Teeth anatomy is a lot more complicated than you ever thought.

Throughout your life you end up having 2 completely different sets of teeth. The initial set is the baby teeth (deciduous teeth) that eventually fall out. They are whiter, softer, and less sturdy than adult teeth. Hence, they tend to wear out much faster than permanent teeth, but they also fall out to make room for them. Making sure that there's enough space in the vacancy caused by a lost baby tooth is important for healthy adult teeth.

New developments include the implantation of artificial teeth or binding posts into the gums or jawbone; antibiotic fiber for periodontal disease; root canal surgery, a procedure that ameliorates pain while permitting teeth to remain in place; and nearly painless lasers to repair dental cavities, usually making local anesthesia unnecessary.

Types of teeth whitening

Teeth whitening can be accomplished many different ways. Considered a cosmetic procedure, teeth whitening has become very popular in recent years with the development of various methods that range from drugstore products to dental visits.

There are many different causes that lead to stained or discolored teeth. Some of the most common causes are everyday foods and drinks--coffee, tea, soda, and red wine all have a staining effect on tooth enamel. Smoking will also darken teeth. Some medications, if taken during early childhood, can result in teeth that are discolored.

The simplest type of teeth whitening is the use of products that can be picked up from the drugstore. These products, which use a very mild bleaching solution, usually require extended use over a period of several weeks. They may be brushed on, squeezed into one-size-fits-all trays, applied as strips, or used in conjunction with normal toothpaste and mouthwash. While these products are very popular, their mildness makes them less effective.

Dentists are able to provide much more dramatic teeth whitening. Some patients opt for a take-home kit that provides results in a few days, while others choose a one-hour procedure that uses advanced technologies to immediately bleach teeth several shades lighter. Take-home kits usually involve custom-fit trays with a whitening gel of carbamide peroxide, to be worn for several hours at a time over some number of weeks as determined by the dentist. These kits are usually less expensive than the one-visit whitening procedures.

Dental fillings

Most of us have had amalgam fillings (silver) or gold filling restorations. Some amalgam fillings were what we have called mercury fillings, as some amalgam fillings contained mercury. Metal fillings were effective, but very conspicuous and tended to blacken in color over time.

If you have a cavity in a tooth, broken fillings, mercury fillings, or amalgam fillings, this type of dental filling is well worth discussing with your dentist. Mercury fillings or amalgam fillings can easily be removed and replaced with far more attractive colored fillings. These fillings actually strengthen your tooth beyond the level it had with the amalgam fillings.

A special dental material is then used to open up the pores of your tooth's dentin and roughens up the surface of the exposed enamel. This achieves better and stronger bond. The bond resin is applied to stick the composite to your tooth. This material is made of the same dental resin as the composite however it is much more fluid. This layer is then hardened and cured with a very bright light.

There are no known health risks of receiving composite fillings. If such a filling is not going to be enough to protect your damaged tooth, or if your tooth enamel is thin and will easily fracture, or if your tooth has had a root canal that weakened your tooth condition, your tooth may require additional protection such as a crown.

Terms interpretation

Dental fillings

• Dental fillings are inserted as restorations in the treatment of dental cavities, after drilling out the cavities.

Dental implants

• Dental implants are surgically fixed substitutes for roots of missing teeth. Embedded in the jawbone, they act as anchors for a replacement tooth, also known as a crown, or a full set of replacement teeth.

Dentures

• Removable complete dentures are full-mouth false teeth, which are used when a patient has no teeth left on either the mandibular arch, the maxillary arch, or both.

Veneer

• A layer of tooth-colored material, usually porcelain or acrylic resin, attached to and covering the surface of a metal crown or natural tooth structure.

Anesthesia

• Total or partial loss of sensation, especially tactile sensibility, induced by disease, injury, acupuncture, or an anesthetic, such as chloroform or nitrous oxide.


• Local or general insensibility to pain with or without the loss of consciousness, induced by an anesthetic.


• A drug, administered for medical or surgical purposes, that induces partial or total loss of sensation and may be topical, local, regional, or general, depending on the method of administration and area of the body affected.

Bridge

• A dental bridge is a prosthesis used in place of missing teeth and may be removable or permanently attached.

Dental cavities

• The formation of cavities in the teeth by the action of bacteria; tooth decay.


• Also known colloquially as tooth decay.

Dental crown

• Full-coverage restoration (sometimes incorrectly called a cap) is a prosthetic tooth designed by a dentist and usually created by a lab technician.

Porcelain

• A hard, white, translucent ceramic made by firing a pure clay and then glazing it with variously colored fusible materials.

Stomatology

• The medical study of the mouth and its diseases.

Tooth bleaching

• Also known as tooth whitening.

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