Makhramah bin Bukayr (may Allah have mercy on him) narrates from his father: I heard my father say: When a tooth is injured and after that it turns black and falls out, there is the full diyah for it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16268
Yahya bin Abdullah bin Salim said: We were told that with the sword of Sayyiduna Umar (may Allah be pleased with him) were found (written) rulings on diyahs: when a tooth turns black there is the full diyah for it, and if after that it falls out, there is the diyah for it once again.
This report is munqati' (its chain is broken).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16269
Sayyiduna Umar (may Allah be pleased with him) said that for an eye that remains in place (but sightless), a tooth that has turned black and a hand that has become paralysed, there is one third of the diyah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16270
Sayyiduna Ali (may Allah be pleased with him) said: If part of a tooth is broken, the diyah will be given to its owner in proportion to what was broken, and then it will be left for one year. If it turns completely black, there will be the full diyah; otherwise there will be nothing more.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16271