Pink tooth phenomenon: an enigma?

Area of Science:

• Forensic Odontology
• Post-mortem Changes
• Biochemistry

Background:

• The pink tooth phenomenon (PTP) is a post-mortem dental observation.
• It arises from increased pulp fibrinolytic activity, leading to red blood cell breakdown and hemoglobin diffusion into dentine.
• This process contributes to the characteristic pink discoloration of teeth after death.

Purpose of the Study:

• To review the factors contributing to the formation of the pink tooth phenomenon.
• To evaluate the reliability of PTP as an indicator of the cause of death in forensic odontology.
• To explore the role of environmental conditions in the development of PTP.

Main Methods:

• A comprehensive review of existing scientific literature on the pink tooth phenomenon.
• Analysis of studies detailing the biochemical and physiological processes involved in PTP.
• Examination of case reports and research correlating PTP with post-mortem conditions.

Main Results:

• Multiple studies indicate that the pink tooth phenomenon is not a dependable odontological parameter for determining the cause of death.
• The breakdown of red blood cells and hemoglobin diffusion are key mechanisms.
• Various factors influencing PTP formation have been identified across reviewed studies.

Conclusions:

• There is no established correlation between the occurrence of pink teeth and the specific cause of death.
• Environmental conditions play a significant role in the development and manifestation of the pink tooth phenomenon.
• This review consolidates current understanding of PTP formation factors and its limitations in forensic investigations.