Genes are the main cause of a Carabelli Cusp. This is a condition where there is an additional cusp on the first molar of the tooth and become less pronounce when progressing to the second and third molars. In some cases, the cusps' forms included pits, ridges, and furrows. 

The Carabelli Cusp is a condition most common in Europeans and rarest in the Pacific Islands. It is an inherited feature from a homozygote or a heterozygote gene that can be present or absent in some individuals. It was discovered in the year 1842 by Georg Carabelli, a court dentist of the Austrian Emperor Franz.

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4 years ago

Using a pulse co-oximeter, a paramedic establishes that the blood of an on-duty fire fighter contains carboxyhemoglobin at a con

Burka [1]

Well,i think the answer would be : no symptoms
Symptom is a physical or mental feature that is used as an indicator for the existence of a disease (such as rash, fever, etc)
Those above are simply laboratory facts/data, not symptoms

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3 years ago