female 4 human 4 male 4 maxillary first premolar Female 3 Humans 3 Male 3 adult 3 Adolescent 2 Article 2 Bicuspid 2 Incisor 2 adolescent 2 article 2 controlled study 2 incisor 2 major clinical study 2 mandibular first molar 2 maxillary first molar 2 middle aged 2 premolar tooth 2 tooth radiography 2 Adult 1 Anatomy 1 Anodontia 1 Apical surgery 1 Asian 1 Asian Continental Ancestry Group 1 Asian continental ancestry group 1 Bone Screws 1