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Accessory root formation on a lower medial incisor.
1Department of Dentistry and Oral Surgery, University Medical School, Attila József University.
Oral Surgery, Oral Medicine, and Oral Pathology
|November 1, 1989
Summary
An eighth-century lower incisor showed an accessory root, lacking a canal and thus not a true supernumerary root. This anomaly likely formed during development due to trauma affecting Hertwig's sheath.
Area of Science:
- Paleodontology
- Developmental Biology
- Dental Anatomy
Background:
- Investigating dental anomalies in historical human remains provides insights into past oral health and developmental processes.
- Accessory root formation is a rare dental anomaly that can affect tooth function and morphology.
Observation:
- An accessory root structure was identified on a lower medial incisor from an eighth-century individual.
- The accessory root was composed of dentin and cement but lacked a central radicular canal.
Findings:
- The observed structure is not a true supernumerary root due to the absence of a radicular canal.
- Postmortem deformation was ruled out through analysis of the surrounding alveolar bone.
- The anomaly is hypothesized to have originated during root development from a traumatic lesion of Hertwig's sheath.
Implications:
- This case highlights the potential for developmental dental anomalies to occur even in historical populations.
- Understanding the etiology of such anomalies, like trauma-induced sheath lesions, contributes to broader knowledge of tooth development.
- The findings underscore the importance of detailed examination of archaeological dental remains for uncovering unique biological variations.