For informational purposes only. This app is not a substitute for professional dental advice. Always consult a qualified dentist for diagnosis and treatment.

Dental Glossary

Understanding dental terms in simple language

A

Abscess

A pocket of pus caused by a bacterial infection. Dental abscesses can occur in different parts of the tooth and are often painful.

Related:InfectionRoot Canal

B

Baby Teeth (Primary Teeth)

The first set of teeth that develop in children, usually beginning around 6 months of age. Children have 20 primary teeth that will eventually be replaced by permanent teeth.

Related:Permanent TeethEruption

Bruxism

The habit of grinding or clenching teeth, often during sleep. Common in children and usually outgrown without intervention.

Related:HabitsTMJ

C

Cavity (Dental Caries)

A hole in the tooth caused by decay. Cavities form when bacteria in the mouth produce acid that eats away at tooth enamel.

Related:DecayFillingEnamel

Crown

A tooth-shaped cap placed over a damaged tooth to restore its shape, size, and strength. Also refers to the visible part of the tooth above the gum line.

Related:RestorationTooth Anatomy

D

Decay

The breakdown of tooth enamel caused by acids produced by bacteria in the mouth. If left untreated, decay leads to cavities.

Related:CavityBacteriaEnamel

E

Enamel

The hard, white outer layer of the tooth. It's the hardest substance in the human body and protects the inner layers of the tooth.

Related:DentinTooth Anatomy

Eruption

The process of teeth breaking through the gums and becoming visible in the mouth. Also called 'coming in' or 'cutting teeth.'

Related:TeethingBaby Teeth

F

Filling

A material (usually composite resin or amalgam) used to fill a cavity after the decay has been removed.

Related:CavityRestoration

Fluoride

A natural mineral that strengthens tooth enamel and helps prevent cavities. Found in toothpaste, some drinking water, and professional treatments.

Related:EnamelPrevention

Fluorosis

A cosmetic condition that causes white spots or streaks on permanent teeth, caused by too much fluoride during tooth development. It's purely cosmetic and doesn't affect tooth function.

Related:FluorideEnamel

G

Gingivitis

Inflammation of the gums, usually caused by plaque buildup. The gums may appear red, swollen, and may bleed when brushing.

Related:GumsPlaque

Gums (Gingiva)

The soft tissue that surrounds and protects the teeth and jawbone. Healthy gums are pink and firm.

Related:GingivitisTooth Anatomy

M

Malocclusion

When teeth don't align properly when the mouth is closed. Can include overbite, underbite, crossbite, and crowding.

Related:OrthodonticsBite

N

Natal Teeth

Teeth that are present at birth. They're rare and sometimes need to be removed if they're loose or interfering with feeding.

Related:Baby TeethEruption

O

Orthodontics

The branch of dentistry that deals with correcting misaligned teeth and jaws, usually using braces or other appliances.

Related:BracesMalocclusion

P

Pacifier

A rubber or silicone nipple given to babies to suck on for comfort. Prolonged use (past age 3-4) can affect tooth development.

Related:HabitsThumb Sucking

Permanent Teeth (Adult Teeth)

The second set of teeth that replace baby teeth, usually beginning around age 6. Adults have 32 permanent teeth (including wisdom teeth).

Related:Baby TeethEruption

Plaque

A sticky film of bacteria that constantly forms on teeth. If not removed by brushing and flossing, it can cause cavities and gum disease.

Related:BacteriaTartar

Pulp

The soft tissue inside the tooth containing nerves and blood vessels. When the pulp becomes infected, a root canal may be needed.

Related:Root CanalTooth Anatomy

Pulpotomy (Baby Root Canal)

A procedure where infected pulp is removed from the crown of a baby tooth, similar to a root canal but less extensive.

Related:Root CanalBaby Teeth

R

Root Canal

A procedure to remove infected or damaged pulp from inside a tooth. In children, this is usually done on permanent teeth.

Related:PulpInfection

S

Sealants

Thin plastic coatings applied to the chewing surfaces of back teeth to prevent cavities. They fill in the grooves where food and bacteria can get stuck.

Related:PreventionMolars

Space Maintainer

A device used to keep space open for a permanent tooth when a baby tooth is lost too early. Prevents neighboring teeth from shifting.

Related:Baby TeethOrthodontics

T

Tartar (Calculus)

Hardened plaque that has been left on teeth for too long. Can only be removed by a dental professional during a cleaning.

Related:PlaqueCleaning

Teething

The process of baby teeth erupting through the gums. Can cause discomfort, drooling, and irritability.

Related:EruptionBaby Teeth

TMJ (Temporomandibular Joint)

The joint that connects the jaw to the skull. TMJ disorders can cause pain, clicking, or difficulty opening the mouth.

Related:BruxismJaw

Tongue Tie (Ankyloglossia)

A condition where the tissue under the tongue is too short, restricting tongue movement. Can affect feeding and speech.

Related:SpeechFrenulum

W

Wisdom Teeth (Third Molars)

The last permanent teeth to come in, usually between ages 17-21. Often need to be removed due to lack of space.

Related:Permanent TeethExtraction