A comparative study of craniofacial measurements between Ryukyuan and mainland Japanese females using lateral cephalometric images

Datos Bibliográficos

ID6135560
AutoresTadashi Yamauchi (University of the Ryukyus), Ryosuke Kimura (0000-0003-0100-273X, University of the Ryukyus), Akira Kawaguchi (0000-0002-4506-5807, University of the Ryukyus), Takehiro Sato (0000-0001-9866-0346, University of the Ryukyus), Kyoko Yamaguchi (0000-0001-7500-1831, University of the Ryukyus), Takashi Toma (0000-0001-5828-0090, Adventist Medical Center, Nishihara-cho), Kiyoto Miyamoto (Adventist Medical Center, Nishihara-cho), Hitoshi Fukase (0000-0003-1802-9437, Hokkaido University), Tetsutaro Yamaguchi (0000-0001-9806-7163, SHOWA Medical University), Hajime Ishida (0000-0002-5781-7914, University of the Ryukyus)
Año2016
Volumen124
Número1
Páginas45-62
Fecha de publicación2016-01-01
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaAnthropological Science (JOURNAL)
Identificadores de la revistaISSN: 0918-7960 • E-ISSN: 1348-8570
EditorialAnthropological Society of Nippon (PUBLISHER • JP)
DOI10.1537/ase.151206
OpenAlexW2280437300
IdiomaEN
Citas recibidas1
Referencias citadas63

Using lateral cephalometric images, we compared the skeletal and soft tissue configurations of Ryukyuan and mainland Japanese females. We collected lateral cephalometric images of 30 females each from Okinawa Island and mainland Japan. Sixty landmarks were plotted on each image. Then, based on the coordinates of the landmarks, 68 distances and 34 angles were calculated according to orthodontic and anthropometric methods. We confirmed that the Ryukyuans have a smaller height in the upper and midfacial region than the mainland Japanese. Moreover, our findings indicate that, compared with the mainland Japanese females, the Ryukyuan females clearly have the following features: (1) a shallower mandibular notch, (2) an anterior-inclined symphysis of mandible, and (3) a smaller depth from upper lip to incisors. We also found that an anterior-inclined mandibular corpus and incisors are associated with a smaller distance between the surfaces of the upper lip and teeth and with a more protruded lip shape

Anthropometry · Biology · Craniofacial · Mandible (arthropod mouthpart · Mandibular symphysis · Symphysis · dental development and anomalies · Forensic Anthropology and Bioarchaeology Studies · Medicine · Orthodontics and Dentofacial Orthopedics · Anatomy · Orthodontics