Table 1 Excluded studies with reason

1

Tardivo et al. 2011 [13]

Three-dimensional Modeling of the Various Volumes of Canines to Determine Age and Sex: A Preliminary Study

The sample consisted of 58 dental computerized tomography (CT) scans.

2

Tardivo et al. 2015 [14]

Gender Determination of Adult Individuals by Three-Dimensional Modeling of Canines

The types of CT scans selected for the sample were brain scans, brain angioscans, dental scans, and ENT scans.

3

García-Campos et al. 2018 [15]

Modern humans sex estimation through dental tissue patterns of maxillary canines

The sample was selected from the anthropological collections housed Madrid (Spain), Pretoria (South Africa) and Sudan.

The specimens were scanned in three facilities: Microtomographic system housed in the Microscopy Laboratory.

4

García-Campos et al. 2018 [16]

Contribution of dental tissues to sex determination in modern human populations

Teeth included in this study were selected from anthropological collections from Spain, South Africa and Sudan. One part of the sample was scanned using a microtomographic system housed in the Microscopy Laboratory.

5

Krenn et al. 2019 [17]

Variation of 3D outer and inner crown morphology in modern human mandibular premolars

MicroCT datasets

Premolars specimens with morphological variation within and between geographically diverse modern human groups from five continents using Geometric morphometric analysis

6

Sorenti et al. 2019 [18]

Sexual dimorphism of dental tissues in modern human mandibular molars

Variables were assessed from two-dimensional (2D) mesial planes of section obtained from microtomographic scans.

Spanish anthropological collection of teeth used for this study was scanned using a CTPMlab micro-CT.