Unicuspid
Unicuspid
Unicuspid (pronunciation: yoo-NI-kuh-sp-id) is a term used in dentistry and cardiology to describe a structure, typically a tooth or heart valve, that has a single cusp or point.
Etymology
The term "unicuspid" is derived from the Latin words "unus" meaning "one" and "cuspis" meaning "point" or "tip".
Dentistry
In dentistry, a unicuspid tooth is a tooth that has a single cusp. This is often seen in the lower incisors, which typically have a single pointed edge used for biting. Unicuspid teeth can also be a result of certain dental conditions or abnormalities, such as peg lateral incisors.
Cardiology
In cardiology, a unicuspid heart valve is a heart valve that has a single cusp or leaflet. This is a rare congenital heart defect, most commonly seen in the aortic valve. A unicuspid aortic valve (UAV) can lead to conditions such as aortic stenosis or aortic regurgitation.
Related Terms
- Bicuspid: A structure with two cusps or points. In dentistry, this typically refers to the premolar teeth. In cardiology, it refers to a heart valve with two leaflets, such as the mitral valve.
- Tricuspid: A structure with three cusps or points. In dentistry, this is a rare condition. In cardiology, it refers to the heart valve located between the right atrium and the right ventricle.
- Cusp: The pointed part of a tooth or the flap-like structures of a heart valve.
External links
- Medical encyclopedia article on Unicuspid
- Wikipedia's article - Unicuspid
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