title: [Some technical problems in three-dimensional cephalometrics].
abstract: Two-dimensional(2D)cephalometrics is an important diagnostic technique in dentistry. Three-dimensional(3D)cephalometrics is becoming a hot point along with the popularity of cone-beam CT(CBCT). However, the 3D cephalometric technique, like 2D cephalometric technique, there are many technical problems needed to be solved. In this article, several topics, including multi-source of 3D cephalometrics, the head position in 3D cephalometrics, the difficulty of landmark indication, norms for 3D cephalometrics and superimposition in 3D imaging, are discussed.
authors.affiliation: Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
mesh_terms: D059925:Anatomic Landmarks; D002508:Cephalometry / Q000379:methods* / Q000639:trends; D054893:Cone-Beam Computed Tomography; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000639:trends