Original scientific paper

https://doi.org/10.15644/asc55/4/7

Articular Eminence Morphology of American Historic and Contemporary Populations

Josip Kranjčić ; School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia; Clinical Hospital “Dubrava”, 10000 Zagreb, Croatia
David Hunt ; Smithsonian Institution, Washington, DC 20002, USA
Sanja Peršić Kiršić ; School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
Ines Kovačić ; School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
Josip Vukšić ; Clinical Hospital “Dubrava”, 10000 Zagreb, Croatia
Denis Vojvodić ; School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia; Clinical Hospital “Dubrava”, 10000 Zagreb, Croatia

Abstract

Objectives: This study was performed to determine the values of the articular eminence inclination (AEI), the articular eminence height (AEH), and the length of the articular eminence curved line (AEL) among American prehistoric and contemporary populations. Materials and methods: The study was carried out on 120 human dry skulls divided into 4 groups: Illinois group (IP), Kentucky group (KP), African Americans group (AAP) and American Caucasians group (ACP). Each group comprised 30 human dry skulls. Measurements of AEI (by two methods), AEH and AEL were performed using computer software on 5 sagittal sections through silicone molds of the articular eminence. The obtained results were statistically analyzed at significance level of p < 0.05. Results: No statistically significant differences of AEI, AEH and AEL values were obtained among American populations (IP, KP, AAP, ACP) neither by body side, sex and age (p > 0.05). The mean AEI M1 values ranged from 31.56° to 38.72°, the mean AEI M2 values ranged from 44.14° to 58.37°, the mean AEH ranged from 5.82 to 6.86 mm, and the mean AEL values ranged from 11.57 to 12.73 mm. Conclusions: AEI, AEH, AEL values are variables, but they did not differ significantly among American populations. Left-right differences as the result of natural body asymmetry were not statistically significant. Sex and age did not significantly affect the articular eminence morphology.

Keywords

MeSH terms: Temporomandibular Joint Disc; Population Characteristics; African Americans; American Natives; European Continental Ancestry Group Author keywords: Skull; Temporoman-dibular joint; North America; Population

Hrčak ID:

267592

URI

https://hrcak.srce.hr/267592

Publication date:

17.12.2021.

Article data in other languages: croatian

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