Answers

2015-09-09T13:04:13+05:30
The gums of some people may appear black due to higher concentration of melanin or imbalance of pigmentation. This condition most commonly occurs in darker skinned races but it can occur in any race.
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2015-09-09T15:37:50+05:30
Gums of some people are black instead of red because of the presence of more amount of melaninĀ 
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