Zenyum, a dental cosmetics startup founded in Singapore, raised $18.57m (US$13.6m) in its Series A funding round from RTP Global, Sequoia India, TNB Aura, Enterprise Singapore’s investment arm SEEDS Capital and other investors, according to an announcement. Zenyum was founded in 2018 by Julian Artopé and Frederik Krass. It leverages the power of technology and a fast-growing network of dentists…