Sex estimation using maxillary sinus volume for Chinese subjects based on cone-beam computed tomography.

"Declarations Ethics approval and consent to participateThe ethical standards of the institutional and/or national research committee and the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards were followed in the whole process involving volunteers. All the participants provided informed consents before been included in the study. The current research was conducted after the approval of the local Biomedical Ethics Committee (No: [2021] 1473). Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This work was supported by the Young Science and Technology Star Program of Shaanxi Province of China (Grant numbers 2020KJXX-025) and the National Natural Science Foundation of China (Grant numbers 81701869, 81901926)."