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Updated: Oct 30, 2025

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

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Published on: August 22, 2022

Dental Anomalies' Characteristics.

Tatiana Sella Tunis^1,2,3, Ofer Sarne³, Israel Hershkovitz^1,2

¹Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel.

Diagnostics (Basel, Switzerland)

|July 2, 2021

Summary

Dental anomalies, affecting tooth number, size, shape, position, and eruption, are common, with 36% of subjects exhibiting at least one. These variations are more prevalent in the maxilla, particularly affecting anterior teeth.

Keywords:

dental anomalies dental diagnosis growth and development mandible maxilla

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Area of Science:

Dentistry
Oral and Maxillofacial Surgery
Human Anatomy

Background:

Dental anomalies represent variations in tooth development.
Understanding their prevalence and patterns is crucial for diagnosis and treatment planning.

Purpose of the Study:

To characterize the prevalence and patterns of dental anomalies.
To investigate associations between dental anomalies, jaw location, and sex.

Main Methods:

Retrospective analysis of pretreatment records (photographs and radiographs) from 2897 patients.
Categorization of anomalies by number, size, shape, position, and eruption.
Chi-square test for statistical analysis of associations.

Main Results:

36% of subjects presented with at least one dental anomaly.
Anomaly prevalence was jaw-dependent, higher in the maxilla (except submerged/transmigrated teeth).
Most common anomalies included missing maxillary lateral incisors and mandibular second premolars, and supernumerary maxillary incisors.

Conclusions:

Dental anomalies exhibit distinct patterns related to jaw location and tooth type.
Maxillary anomalies predominantly affect anterior teeth, while mandibular anomalies involve posterior teeth.
These patterns may be linked to evolutionary and developmental factors of the jaws.