Air Abrasion

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A

Air abrasion - is a drill-less technique that is being used by some dentists to remove tooth decay and for other applications
Amalgam - Material made from mercury and other alloy mixtures used to restore a drilled portion of a tooth. 
Anesthesia - Medications used to relieve pain.
Anterior teeth - Front teeth. Also called incisors and cuspids.
Arch - The upper or lower jaw.

B
Baby bottle tooth decay - Caused by sugary substances in breast milk and some juices, which combine with saliva to form pools inside the baby's mouth.
Bicuspids -Back teeth used for chewing.
Bitewings - X-rays that help a dentist diagnose cavities.
Bonding - Application of tooth-colored resin materials to the surface of the teeth.
Bridge - A fixed or removable appliance that replaces lost teeth.
Bruxism - Teeth grinding.

C
CAD/CAM dentistry, (Computer-Aided Design and Computer-Aided Manufacturing in dentistry), is an area of dentistry utilizing CAD/CAM technologies to produce different types of dental restorations, including crowns, crownlays, veneers,  inlays and onlays, fixed bridges, dental implant restorations and orthodontic appliances.
Calculus (tartar)-  Calculus is hardened plaque (a sticky substance) that has been left on the tooth for some time and is now firmly attached to the tooth surface. Calculus forms above and below the gum line and can only be removed with special dental instruments.
Canal - The narrow chamber inside the tooth's root.
Canines - Also called cuspids.
Canker sore - One that occurs on the delicate tissues inside your mouth. A canker sore is usually light-colored at its base and can have a red exterior border. 
Caries - Another term for decay, which causes cavities.
Cold sore - Usually occurs on the outside of the mouth, usually on or near the nose or lips. A cold sore is contagious because it is caused by the herpes simplex virus, and it is usually painful and filled with fluid. 
Composite filling - Tooth colored restorations, also known as resin fillings. 
Composite resin - A tooth colored resin combined with silica or porcelain and used as a restoration material.
Contouring - The process of reshaping teeth.
Crown - An artificial cover that is placed on the top of a tooth following restoration.
Cusps - The pointed parts on top of the back teeth's chewing surface.
Cuspids - Front teeth that typically have a protruding edge.

D
Dentin - The tooth layer underneath the enamel.
Denture - A removable set of teeth.

E
Endodontics - A form of dentistry that addresses problems affecting the tooth's root or nerve.

F
Fluoride - A naturally occurring substance added to water, toothpastes and some rinses and used for strengthening the tooth's enamel.
Fluorosis - A harmless over-exposure to fluoride and resulting sometimes in tooth discoloration.

G
Gingiva - Another word for gum tissue.
Gingivitis - A minor disease of the gums caused by plaque.
Gum disease - An infection of the gum tissues. Also called periodontal disease.

I
Impacted teeth - A condition in which a tooth fails to erupt or only partially erupts.
Implant - A permanent appliance used to replace a missing tooth.
Incisor - Front teeth with cutting edges; located in the center or on the sides near the front.
Inlay - An indirect artificial filling made of various materials, including porcelain, resin, or gold.  fitted to a cavity in a tooth and cemented into place.
Intracoronal - situated or made within the crown of a tooth

L
Laminate veneer - A shell that is bonded to the enamel of a front tooth. The shell is usually thin and made from porcelain resin.

M
Malocclusion - Bad bite relationship
Mandible - The lower jaw
Maxilla - The upper jaw
Molar - Usually the largest teeth, near the rear of the mouth. Molars have large chewing surfaces

N
Nightguard - Night mouth guards are bite pads that are worn at night as you sleep. There are also used as mouth guards for day use. These guards are made of high-grade plastic and are custom fit to the mouth. This device keeps the upper teeth from grinding with the lower teeth, offering an instant solution to teeth clenching problems.
Neuromuscular Dentistry - Are more than the aches and pains felt in and around the neck and head that are associated with your teeth and jaw.

O
Onlay - An indirect artificial filling made of various materials, including porcelain, resin, or gold;  fitted to a cavity in a tooth and cemented into place. It is designed to protect the chewing surface of a tooth by extending to replace a cusp.
Orthodontics - A field of dentistry that deals with tooth and jaw alignment.
Overdenture - A non-fixed dental appliance applied to a small number of natural teeth or implants.

P
Palate - Roof of the mouth.
Partial denture - A removable appliance that replaces teeth. Also called a bridge. 
Pedodontics - A field of dentistry that deals with children's teeth.
Perio pocket - An opening formed by receding gums.
Periodontal disease - Infection of the gum tissues. Also called gum disease.
Periodontist - A dentist who treats diseases of the gums.
Permanent teeth - The teeth that erupt after primary teeth. Also called adult teeth.
Plaque -Plaque is a sticky, colorless, almost invisible film or substance that forms on the teeth after sleep or periods between brushing. It is a growing colony of living bacteria, food debris, and saliva. 
Posterior teeth - The bicuspids and molars. Also called the back teeth.
Primary teeth - A person's first set of teeth. Also called baby teeth or temporary teeth.
Prophylaxis - The act of cleaning the teeth.
Prosthodontics - The field of dentistry that deals with artificial dental appliances.
Pulp - The inner tissues of the tooth containing blood, nerves and connective tissue.

R
Radiographs - Diagnostic X-rays essential for detection of decay, tumors, cysts, and bone loss.  X-rays also help determine tooth and root positions.
Receding gum - A condition in which the gums separate from the tooth, allowing bacteria and other substances to attack the tooth's enamel and surrounding bone.
Resin filling - An artificial filling used to restore teeth. Also called a composite filling.
Root canal - A procedure in which a tooth's nerve is removed and an inner canal cleansed and later filled.
Root planing - Scraping or cleansing of teeth to remove heavy buildup of tartar below the gum line.

S
Sealant - A synthetic material placed on the tooth's surface that protects the enamel and chewing surfaces.

T
Tartar - A hardened substance (also called calculus) that sticks to the tooth's surface.
Tooth decay –   Tooth decay occurs when the acids found in plaque erode the natural enamel found on the teeth.  This phenomenon can easily be prevented by using proper home hygiene methods. Tooth decay is one of the leading causes of tooth loss, and its treatment often requires complex dental procedures.Teeth polishing: Removal of  stain and plaque that is not otherwise removed during tooth brushing and scaling.
TMD - Temporomandibular joint disorder. Health problems related to the jaw joint just in front of the ear.

V
Veneer - A laminate applied or bonded to the tooth.

W
Whitening - A process that employs special bleaching agents for restoring the color of teeth.
Wisdom tooth - Third set of molars that erupt last in adolescence.
 

In the future, could small cavities be detected early and filled without anesthesia, and with only the minimum removal of tooth material? Will routine dental procedures be performed with patients noticing no vibration or pressure? Will the piercing whine of a dental drill be a sound that's heard in dental offices no more? The answer may well be yes — in fact, it's happening right now with air abrasion technology.

The air abrasion instrument is a hand-held tool that dentists use for a variety of purposes. A bit like a mini-sandblaster, it uses compressed air (or another gas) to produce a fine stream of abrasive particles that can be precisely aimed. The small, high-speed particles (often silica or aluminum oxide) remove tiny bits of material in the decayed portion of the tooth; the debris is then whisked away through a suction tube.

Sound futuristic? It is, but it's not exactly new: Air abrasion instruments were first developed in the 1940's, but recent advances in high-volume suction and improved dental restoration materials have given the process a renewed appeal. Some of the uses for air abrasion tools include: removing dental caries (cavities) and filling them with composite (tooth-colored) material; preparing teeth for bonding, veneering or other procedures; and removing stains or even repairing small defects in teeth.

How It Works

The tiny abrasive particles (.002” or less in diameter) remove only minute amounts of tooth structure, making a drill seem coarse by comparison. The air pressure, flow rate, nozzle diameter, and other settings on the instrument can be accurately controlled to produce the precise amount of abrasion needed. The result is a minimally-invasive method of removing decayed or unwanted tooth material.

Even though powerful suction is used to remove spent abrasive and debris, it's still necessary for everyone to wear protective eyewear as a precaution. A rubber dam (shield) is also generally used to keep abrasive particles from affecting other teeth or getting into areas of the mouth where they don't belong. Nearby teeth and gums can also be coated with a protective resin if needed.

Advantages of Air Abrasion

Because it doesn't require a whirring drill, air abrasion generates no pressure or vibration, and makes very little noise. It can eliminate the need for anesthesia, especially if the cavity isn't deep. It reduces the chance of damaging the tooth during a procedure, and it leaves more healthy tooth material behind. This makes it ideal for children, or others who are sensitive to dental discomfort. In fact, it's perfect for treating tiny cavities that have been detected by laser diagnosis (cavities that aren't big enough to be seen on an X-ray), and sealing them up before they become bigger problems.

Minimally-invasive procedures are where air abrasion truly shines. Because it's a relatively fine-scale instrument, it isn't suitable for treating deep cavities or removing old metal fillings. However, as a high-tech tool for performing many preventive and restorative dental procedures, it offers some unique benefits to both dentist and patient. And some day, it just might make the dental drill obsolete.

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