title: [Precision validation of 3-D reconstruction of the craniofacial hard tissues based on 2-D digital radiograph].
abstract: OBJECTIVE
  In this study, we validated the precision of 3-D craniofacial reconstruction of hard tissues based on 2-D digital cephalometric radiograph, in order to increase the level of orthognathic diagnosis and treatment, and promote communication between doctors and patients.
  
  
  METHODS
  Deformation modeling based on 2-D digital radiograph and CT modeling was performed in 7 volunteers. 64 items were measured which described craniofacial hard tissue structure, intuitive overlapping and objective analysis were conducted. SPSS 17.0 software package was used for paired t test.
  
  
  RESULTS
  58 measurement items were not statistically different. Deformation modeling and CT modeling of the consistency was very high.
  
  
  CONCLUSIONS
  Deformation modeling based on 2-D digital radiograph of craniofacial hard tissues is accurate and reliable, and basic deviation was within the allowed range. This 3-D reconstruction system could be used in clinic for diagnosis and operation simulation.
authors.affiliation: Department of Orthodontics, Hospital of Stomatology of Baoji City. Baoji 721001, China. E-mail:fypangel@126.com.
authors.forename: Yao-pu
authors.initials: YP
authors.lastname: Feng
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Xi'an Jiaotong University. Xi'an 710004, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
authors.affiliation: Northwestern Polytechnical University. Xi'an 710067, Shaanxi Province, China.
authors.forename: Pei-fang
authors.initials: PF
authors.lastname: Zhai
authors.affiliation: Northwestern Polytechnical University. Xi'an 710067, Shaanxi Province, China.
authors.forename: Yan-ning
authors.initials: YN
authors.lastname: Zhang
authors.affiliation: Department of Orthodontics, Hospital of Stomatology of Baoji City. Baoji 721001, China.
authors.forename: Lin-lin
authors.initials: LL
authors.lastname: Sun
mesh_terms: D001842:Bone and Bones; D002508:Cephalometry; D006801:Humans; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging*