Yahya related to mefrom Malik from Yahya ibn Said that Said ibn al-Musayyab used to say,''When a tooth is struck and becomes black, there is complete blood-money for it. If it falls out after it becomes black, there is alsothe complete blood-money for it."
USC-MSA web (English) reference: Book 43, Hadith 7
Arabic reference: Book 43, Hadith 1577