Black teeth have been a part of Japanese culture for centuries and are seen as a sign of beauty, maturity, and wealth. There are two main types of black teeth available: natural ohaguro (blackened with iron sulfate) or artificial ohaguro (blackened with dye). Getting blackened teeth requires specialized techniques and materials and should only be done by a dentist or traditional practitioner. Benefits include improved confidence, protection against tooth decay, improved oral hygiene, increased longevity, and more. However, there are potential risks such as staining/discoloration, increased sensitivity, gum irritation, inhalation risk from charcoal masks, and allergic reactions to certain dyes/chemicals that should be taken into consideration before deciding whether or not this is right for you.