title: Diagnostic imaging with newly developed ortho cubic super-high resolution computed tomography (Ortho-CT).
abstract: OBJECTIVE
  Ortho cubic super-high resolution computed tomography (Ortho-CT), which we have developed, is characterized by the small size of the unit and the ability to produce 3-dimensional images of high resolution with low-radiation doses. The purpose of this study was to investigate the clinical usefulness of Ortho-CT for the diagnosis of diseases in the oral and maxillofacial region.
  
  
  METHODS
  Ortho-CT has been used for the imaging diagnosis of a radicular cyst of the upper first molar, mesiodense, tooth fractures in the upper anterior region, a fracture of the condylar process, or presurgical evaluation for a dental implant. The usefulness of 3-dimensional images obtained by Ortho-CT was investigated in this study.
  
  
  RESULTS
  Ortho-CT produced images of high resolution, enabling identification of the extent of the lesions and the fracture line, the condition of the impacted tooth, and the relationship with the maxillary sinus, mandibular canal, and adjacent teeth.
  
  
  CONCLUSIONS
  Because Ortho-CT can take high-resolution 3-dimensional images at any tomographic layer with only 1 exposure, it is useful for the diagnosis of diseases in the oral and maxillofacial region.
authors.affiliation: Nihon University, Department of Oral and Maxillofacial Surgery, School of Dentistry, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Terakado
authors.forename: K
authors.initials: K
authors.lastname: Hashimoto
authors.forename: Y
authors.initials: Y
authors.lastname: Arai
authors.forename: M
authors.initials: M
authors.lastname: Honda
authors.forename: T
authors.initials: T
authors.lastname: Sekiwa
authors.forename: H
authors.initials: H
authors.lastname: Sato
mesh_terms: D000328:Adult; D002648:Child; D004867:Equipment Design; D005260:Female; D006801:Humans; D007571:Jaw Diseases / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009059:Mouth Diseases / Q000000981:diagnostic imaging; D011861:Radiography, Dental / Q000295:instrumentation* / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000295:instrumentation* / Q000379:methods; D014076:Tooth Diseases / Q000000981:diagnostic imaging