Dental Glossary

A-B C D E-F G-H I-L M N-O P-Q R-S T-Z

  A-B  

 

Alveolar bone: The bone which surrounds the root of the tooth, holding it in place. Loss of this bone is typically associated with severe periodontal disease.
Amalgam:

Dental material used to repair cavities. Commonly referred to as "silver fillings", usually consists of a mixture of silver, copper, tin and sometimes zinc particles combined with mercury.
 

Anterior teeth:

These are the six teeth located in the front of the mouth, and are used as cutting (biting) surfaces rather than chewing surfaces.
 

Appliance:

Any removable dental restoration or orthodontic device.
 

Attachment level:

This is numerical measure of the attachment of periodontal ligament, which is determined generally by combining a pocket depth measurement with a measurement of gingival recession. Attachment level is considered one of the most important measures of periodontal disease progress or treatment success.

Abutment The teeth on either side of a missing tooth.
Amalgam A silver/mercury mixture which is used for fillings.
Anatomy 1)The arangement of the bones in your skeleton 2) The study of the arrangement of the bones in your skeleton.
Antiseptic A chemical agent which can be applied to living tissues to destroy germs.
Anesthetic A drug which a doctor or dentist uses to put you, your mouth, or some other part of your body asleep so you do not feel any pain during dental or medical procedures.
Anterior An adjective used to describe things pertaining to your your Centrals, laterals and cuspids (your front teeth).
Arch Collectively, either the teeth or the basal bone of either jaw.
Articulator A special holder for models of your teeth. The articulator holds the models in the same alignment as your jaw so the orthodontist can look carefully at your bite.
Asepsis The avoidance of potentially pathogenic microorganism. In practice,it refers to those techniques which aims to exclude all microorganisms
Aspirator A tube like a straw which the dentist puts in your mouth to suck up all the saliva.
Aspiration Removal of fluids from your mouth with an aspirator.
Baby Bottle Tooth Decay:

Decay in infants and children, most often affecting the upper front teeth, caused by sweetened liquids given and left clinging to the teeth for long periods (e.g. in feeding bottles or pacifiers).
 

Bonding:

A technique for the restoration, repair, or cosmetic improvement of a tooth that involves the application of a high-impact resinous material to the tooth surface, where it adheres to existing enamel.
 

Bruxism
Clenching or grinding of your teeth especially at night.
Bridge:

A fixed partial denture which replaces or spans the space where one or more teeth have been lost.
 

Buccal:

This is the technical term for the cheek, and is also used to refer to the cheek side of tooth surfaces. Technically, this term is used to describe the cheek surfaces of the posterior teeth, but is also used to describe the cheek surfaces of anterior teeth as well.
 

 

C

   
Calculus:

Also called tartar. A tenacious, hardened material formed by mineralization (calcification) of dental plaque, which once formed can only be removed by a dentist/hygienist.
 

Canines:

The pointed conical teeth located between the incisors and the first molars.

Caries:

The technical term for cavities or tooth decayAnother name for a cavities (tooth decay) .
Cavity:

The space inside a tooth that remains once decay is removed.A small hole in one of your teeth caused by tooth decay.

Cementoenamel junction:

Abbreviated as "CEJ", this is the point at which the tooth and root come together.
 

Cementum:

Located at the root of the tooth, cementum serves as the anchor point for the ligaments that join the tooth to the boney tooth socket. It is the softest part of the tooth structures.
 

Composite:

White filling material for repairing cavities.
 

Crown:

Portion of tooth covered by enamel; also refers to a dental restoration shaped like the tooth it covers.
1) An artifacial tooth, 2) an artificial replacement for the covering on a tooth.

Curettage:

The removal of damaged or diseased tissue from the inside of a periodontal pocket.
A periodontal procedure where your gums are scraped to remove bacteria.

Cross contamination Passing bacteria, viruses or AIDS indirectly from one patient to another through the use of improper sterilization procedures, unclean instruments, or "recycling" of orthodontic products.
 

D

   
Debridement:

Treatment of bacterial infection by removing irritants (bacteria, calculus) from the periodontal pocket so as to allow healing of the adjacent tissues.
 

Deciduous teeth:

Baby teeth.
 

Demineralization:

A loss of mineral from tooth enamel just below the surface in a carious lesion. May appear as a small white area on the tooth surface.
 

Dental resin:

A dental material applied to the tooth which is used in cases of severe dentinal hypersensitivity. Typically not used unless all other treatment attempts have failed.
 

Dental varnish:

A hypersensitivity treatment which sometimes contains sodium fluoride. Varnishes are applied to the tooth surface, covering the outer surface of dentin and thus blocking transmission of painful stimuli to the pulp.
 

Dentinal hypersensitivity:

A sharp, sudden painful reaction when the teeth are exposed to hot, cold, chemical, mechanical or osmotic (sweet or salt) stimuli.
 

Dentinal tubules:

Microscopic canals that run from the outside of the dentin to the nerve inside the tooth.
 

Dentin:

This is the main tissue that forms the shape of the tooth. Dentin is the material which exists between the pulp and the enamel, and is comprised of a series of dentinal tubules stacked on top of each other.
 

Decalcification The loss of calcium from your teeth. This weakens your teeth and makes them more succeptable to decay
Diagnosis
the process of identifying the nature of a disorder.

 

Direct contamination
Direct contact with impurities or germs. (for example by a Patient sneezing on the assistant.)
Disinfection A cleaning process which destroys of most microorganism, but not highly resistant forms such as bacterial and mycotic spores or the AIDS virus.
Disinfectant A chemical agent which is applied onto inanimate surfaces, for example chairs, to destroy germs.
Disposable materials materials intended for one use and discarded. (e.g.: Gloves, paper gowns, cotton rolls, sponges, etc.)
Denture:

A partial or complete set of artificial teeth for either the upper or lower jaw.
 

Desensitization:

Blocking the pain stimulus that causes dentinal hypersensitivity.
 

Desquamation:

A peeling of the tissue of the gingiva. In cases of desquamative gingivitis, the tissues may appear smooth and shiny, with patches of bright red and gray. Surface tissue may peel away, exposing a raw, bleeding and extremely painful surface.
 

Dietary sugar:

Sugar occurring in your diet, including sugar found in sweets, fruits and processed foods.
 

Distal:

Referring to the tooth surfaces that face away from the midline of the mouth.Behind towards the back of the mouth. For example you might say that the first bicuspid is distal to the cuspid.
 

Dorsal surface:

The top surface, typically used when speaking of the tongue, i.e. the dorsal surface of the tongue.
 

 

E-F

   
Early childhood caries:

see Baby Bottle Tooth Decay
 

Edema:

Swelling that occurs when fluid accumulates in the gingival tissues.
 

Edentulous Someone is said to be edentulous whene all of their teeth are missing from either their upper or lower jaw.
Endodontist (Endo) A dentist who specializes in root canals and the treatment of diseases or injuries that affect the root tips or nerves in your teeth.
Erupt, Eruption When a new tooth comes in, the tooth is said to erupt when the tooth breaks through the surface of your gums, so you can see the tooth in your mouth.
Exfoliate
to fall out. (Your Deciduous teeth exfoliate and permanent teeth erupt into the space.)

 

Extraoral Outside of your mouth. For example, neck pads are sait to be extra oral products since they go outside of your mouth.
Enamel:

Enamel is the hard, mineralized, white material which covers the outside of the tooth.
 

Endotoxins:

Endotoxins are a poisonous substance released from bacteria when it dies, and can cause tissue destruction directly or trigger an immune response which causes tissue breakdown.
 

Eruption:

When teeth first peek through gums.

Explorer:

A probe used to detect tooth decay.

Facial:

Describes the surfaces of the anterior teeth facing the lips.

Filtrum the dimple or indentation under the nose directly above the upper lip
Fluoride A chemical solution or gel which you put on your teeth. The flouride hardens your teeth and prevents tooth decay.
Fissures:

Cleft-like grooves in the chewing surface of the back teeth.

Fluoride:

A chemical compound that helps strengthen teeth as well as reduce tooth decay and sensitivity.

Fluorosis:

Discoloration of the enamel due to too much fluoride ingestion (greater than one (1) part per million) systemically into the bloodstream, also called enamel mottling.

Free gingiva:

The marginal part of the gingival (gums) that can be deflected from the tooth surface. The free gingiva forms a collar around the tooth.

  G-H    
Gingival crevicular fluid:

Abbreviated as "GCF", this is the clear fluid which continually flushes out the sulcus. In a state of health, there is little gingival crevicular fluid; however as inflammation increases, the amount of GCF increases also.
 

Gingival hypertrophy The abnormal enlargement of the gingiva surrounding the teeth caused by poor oral hygiene.
Gingival margin:

Area of gingiva closest to the tooth surface, commonly referred to as the "gumline"
 

Gingival recession:

The condition which exists when the gingival margin has receded towards the root from the cementoenamel junction (the area where the tooth and root meet).
 

Gingiva

The dense tissue surrounding the teeth and covering the alveolar bone, commonly referred to as "gums".
 

Gingivitis:

Gingivitis generally refers to an inflammation of the gingiva (gums), and ranges in classification from mild to severe. Gingivitis is associated with redness, edema (swelling), bleeding, and tenderness of the gingiva.
 

Gum line:

Space between tooth (including root) and gum tissue.
 

Hard palate:

The bony front portion of the roof of the mouth.
 

Hypersensitivity:

A sharp, sudden painful reaction when the teeth are exposed to hot, cold, chemical, mechanical or osmotic (sweet or salt) stimuli.
 

 

I-L

   
Immune response:

The body's natural defense against bacterial assault, the immune response can also destroy alveolar bone in its attempt to destroy bacteria.
 

Implants:

A metal rod that is screwed into the jaw where teeth are missing. An artificial tooth is then fitted over the implant to replace missing teeth.
 

Impacted tooth An unerupted tooth that somehow has gotten stuck and cannot come in.
   
Incisal edges:

Refers to the biting edges of the anterior teeth.

Incisors:

A tooth adapted for cutting or gnawing, located at the front of the mouth.

Interdental:

Between the teeth.

Interproximal the space between adjacent teeth
Intraoral Inside your mouth. For example, orthodontic rubber bands are called intraoral products since the rubber bands are designed to go in your mouth.

Irrigation:

Mechanical method of flushing supra- and subgingival areas with fluid to disrupt debris and plaque.

Labial:

Referring to the surfaces of the anterior teeth that oppose the inner surface of the lip.

Lingual:

Refers to the inside surface of the tooth closest to the tongue.

 

M

   

Maintenance:

Regularly scheduled dental visits designed to maintain the health of the patient. Maintenance visits and therapy are based on the status of the patients oral health.

Malocclusion:

Refers to abnormal or malposition relationships of the maxillary teeth to the mandibular teeth. Correction of malocclusion involves orthodontic treatment.

Masticate To chew your food and mix the food with saliva
Mandible:

The mandible is the bone that forms the lower jaw. This the largest and only freely movable bone of the face.

Maxilla:

The upper jaw, which forms the upper portion of the mouth. The maxilla consists of two bones joined together at the midline of the face.

Maxillary Pertaining to your upper jaw
Mesial:

Referring to the tooth surfaces that face towards the midline of the mouth.Forward or front. For example your cuspid is mesial to you bicuspid. The mesial surface of your bicuspid is the part of the bicuspid closest to your cuspid.

Midline A plane through the very center of your mouth perpendicular to your nose.
Mixed   dentition The situation when both deciduous and permanent teeth are present.
Molars:

Large, broad, multi-cusped teeth at the back of the mouth.

Mouthguard:

A soft fitted device which protects teeth against impact or injury.

Mucosa:

The thin, outer pink or red membrane lining the inside of the oral cavity.

 

N-O

   
Occlusal trauma:

Occurs when excessive forces are placed on a normal dentition, i.e. grinding and clenching of teeth. If left uncontrolled, occlusal trauma may result in rapid attachment loss and bone loss.

Occlusal:

The term identifies the biting surface of the posterior teeth.

Occlusion:

Refers to the contact between maxillary and mandibular teeth in all mandibular positions and movement.

Occlusal plane the imaginary surface on which upper and lower teeth meet
Occlusal radiograph the only x-ray that is taken without a precision(tm) x-ray holder. The x-ray film for this procedure is shaped like a large oatmeal cookie. You are asked to bite on the x-ray film and the top of the x-ray machine is positioned over your nose for a maxillary occlusal x-ray or under your chin for a mandibular occlusal film. The x- ray shows the whole arch.
Oral pertaining to the mouth.
Osteoblasts Cells which aid the growth and development of teeth and bones.
Osteoclasts Cells which help create the sockets in bones. For example osteoclasps create the openings in your jaw bone to hold your teeth.
Orthodontics:

An area of dentistry concerned with the correction of malocclusion and the restoration of teeth to proper functioning.

  P-Q    
Palatal:

The palatal area is found on the roof of the mouth.

Papilla:

Refers to the "v" shaped gum tissue between individual teeth.

Pathogens disease producing organisms that can exist in many different places. (e.g.: Air, dust, counter top surfaces, the body, etc.)
Pathology the study of abnormal (diseased) tissue conditions.
Pellicle: The first step in plaque formation, the pellicle is a clear, thin covering containing proteins and lipids (fats) found in saliva. Pellicle is formed within seconds after a tooth surface is cleaned.
Pedodontist (Pedo) A dentist who specializes in the treatment of children's teeth.
Periodontal:

Of or pertaining to the tissue and bone that support teeth.

Periodontal abscess:

Acute infection of the gingival tissues surrounding an individual tooth, typically involving bone loss, pain, bleeding, severe redness and swelling of the affected area.

Periodontal disease:

Disease of the supporting structure of the tooth.

Periodontal ligament:

The fibers which suspend the tooth in the boney socket. The periodontal ligament is attached at one end to the cementum, and at the other end to the alveolar bone.

Periodontal probe:

An instrument used to measure pocket depth.

Periodontitis:

A form of periodontal disease resulting in destruction of alveolar bone.

Periapical x-ray of individual teeth or groups of teeth
Plaque:

A colorless, sticky film of bacteria in a protein matrix that constantly forms on the teeth. The main factor in causing dental caries and periodontal disease when allowed to remain over a period of time.

Plaque attached:

Bacterial plaque which is attached to hard tooth surfaces and can be removed only by mechanical means (i.e. instrumentation, oral hygiene aids such as toothbrushes, floss, etc,).

Plaque loosely adherent:

Free floating bacterial plaque found on the surface of supragingival and subgingival plaque; contains most of the disease causing bacteria, and can easily be flushed from subgingival area with irrigation.

Polishing:

A dental procedure that removes stain, plaque and acquired pellicle by using an abrasive polishing paste in a rubber cup attached to a slow-speed handpiece or air-powder polisher.

Posterior teeth:

This refers to the premolar and molar teeth. The posterior teeth are those used for grinding food.

Premolars:

Two-cusped teeth immediately in front of molars.

Prophylaxis:

Preventive dental office procedure involving removal of hard and soft deposits from the exposed surfaces of the dentition.Cleaning your teeth

Prosthodontist A dentist who specializes in the replacement of missing teeth.
Proximal: Proximal surfaces are the surfaces of adjacent teeth.Refers to the surfaces of teeth that touch the next tooth; the space between adjacent teeth is the interproximal space.
Pulp:

Pulp is the living part of the tooth, located inside the dentin. Pulp contains the nerve tissue and blood vessels which supply nutrients to the tooth.

  R-S    
Radiographic:

Referring to x-rays.

Remineralization:

Redeposition or replacement of the tooth's minerals into a demineralized (previously decayed) lesion. This reverses the decay process, and is enhanced by the presence of topical fluoride.

Restorations:

Any replacement for lost tooth structure or teeth; for example, bridges, fillings, crowns and implants.

Root canal (endodontic) treatment:

A treatment in which diseased tissue from the pulp-filled channel in the root of the tooth is removed and the resulting cavity is filled with an inert material.

Scaling:

Professional removal of hard deposits from the teeth.

Sagittal plane The longitudinal vertical plane that divides the mouth into two halves (left and right.)
Sanitization A cleaning process which reduces germs to a "safe" level.
Sealant:

Used to prevent caries (tooth decay), sealants are a plastic liquid which is placed on the top surfaces of posterior teeth. The sealant hardens into place, forming a shallow surface that is easily cleaned with a toothbrush.

Sloughing:

A condition in which the gingival tissue deadens and peels away from the living tissue.

Space maintainer A gadget used to maintain a space in your mouth. You would use a space maintainer when you lose one of your baby teeth. The space maintainer will keep a space in your mouth until a permenant tooth comes in to fill the space.
Soft palate:

The back tissue portion of the roof of the mouth.

Stain:

Extrinsic stain refers to tooth stain located on the outside of the tooth surface originating from external substances such as tobacco, coffee, tea or food. This stain can often be removed by polishing the teeth with an abrasive prophylaxis paste. Intrinsic stain refers to tooth stain located within the tooth. It may originate from the ingestion of certain materials or chemical substances during tooth development. This stain is permanent and cannot be removed by polishing. Tooth bleaching may alter the stain.

Sterilization A process where a medical material is treated to remove all possible germs and other forms of life
Subgingival:

The moat-like area below the gingival margin which surrounds the tooth.

Sulcus:

A space or trough lined by mucous membrane (e.g. gingival sulcus).

Supragingival:

The area above the gingival margin.

Supernumerary teeth
Some people have extra teeth. These are called "supernumerary teeth".
   
  T-Z    
Teething:

The effects of baby teeth pushing through gums.
 

Temporomandibular Joint:

Also abbreviated as "TMJ", this is the "hinge" between the mandible and the skull.
 

Topical:

Applied directly to an infected area for treatment.
 

Veneers:

Thin, custom-made shells crafted of tooth-colored materials designed to cover the front side of teeth in order to improve appearance.

Ventral surface:

The underside, used when speaking of the tongue; thus the ventral surface of the tongue is the underside of the tongue.