Forensic significance of postmortem pink teeth: A narrative review

• Published in: Archives of oral biology 2025-01, Vol.169, p.106092, Article 106092
• Main Authors: Braga, Susana, Caldas, Inês Morais, Dinis-Oliveira, Ricardo Jorge
• Format: Article
• Language: English
• Subjects: Cause of Death; Dentin - pathology; Forensic Dentistry; Forensic Dentistry - methods; Forensic Pathology; Humans; Intoxications; Pink Teeth; Postmortem; Postmortem Changes; Tooth; Tooth Discoloration
• ISSN: 0003-9969; 1879-1506; 1879-1506
• DOI: 10.1016/j.archoralbio.2024.106092

To review the phenomenon of postmortem pink teeth, exploring its etiology, correlation with the cause of death, and the potential forensic significance of this medico-legal finding. A comprehensive literature search was conducted using databases such as PubMed, Scopus, and B-on, employing keywords like "Forensic Pathology," "Forensic Dentistry," "Pink Teeth," and "Medico-legal aspects." The search included studies without temporal limits to gather extensive data on the postmortem pink teeth phenomenon. The postmortem pink teeth phenomenon is characterized by a red-pink discoloration of the dentin, typically sparing the enamel. It is most often observed in moist environments and cases involving water immersion, strangulation, and carbon monoxide poisoning. The study found no consistent relationship between the pink discoloration and specific causes of death, suggesting the phenomenon is more closely related to environmental conditions and the state of decomposition. The pink coloration is more prevalent in anterior, single-rooted teeth and younger individuals. The postmortem pink teeth phenomenon remains a complex and enigmatic finding in forensic science. While it does not conclusively indicate a specific cause of death, understanding its occurrence can aid forensic investigations. Further research is needed to elucidate this phenomenon's mechanisms and validate its forensic relevance. •Pink teeth relate to increased intracranial pressure and unchanged enamel.•There is no consensus on the link between pink teeth and the cause of death.•Postmortem pink teeth are linked to environmental conditions like moisture.•Pink discoloration is more common in anterior single-rooted teeth.•Controversy remains over the medico-legal relevance of pink teeth.