title: Three-dimensional analysis and treatment planning of hemimandibular hyperplasia.
abstract: BACKGROUND
  The advent of computed tomography (CT) provided a useful instrument for diagnosis and surgical treatment of patients with craniofacial malformations. The development of software for three-dimensional graphic simulation applied to CT scan has made possible the three-dimensional computerized analysis, surgical planning, and simulation. This kind of analysis is particularly useful in case of complex facial malformations, making reliable a surgical treatment in 1 step. The purpose of this report was to present the diagnosis and treatment planning on a patient with hemimandibular hyperplasia by three-dimensional cephalometric analysis.
  
  
  METHODS
  A 20-year-old young woman who presented with hemimandibular hyperplasia was investigated with CT scan and plaster cast mounted on an articulator; a two-dimensional manual and computerized cephalometric analysis was also developed on frontal and lateral cephalograms. Images in DICOM format were processed on a PC by means of commercial software, thus obtaining the three-dimensional reconstruction of the skeletal structures.
  
  
  RESULTS
  Three-dimensional CT permits to program skeletal corrections and to foresee surgical outcomes with adequate realism. Surgical planning based on three-dimensional CT makes it easy and reliable to achieve the correction of the malformation in a single surgical intervention.
  
  
  CONCLUSIONS
  The virtual three-dimensional CT model, a versatile diagnostic aid, has proven to be effective in the exact reproduction of bone and soft tissue anatomy, thus helping in the diagnosis, surgical planning, and simulations. Three-dimensional analysis is particularly indicated in case of complex asymmetric malformations, in which the more accurate reproduction of the individual anatomy can be very useful in implementing surgical results.
authors: Department of Maxillofacial Surgery, Catholic University Medical School, Rome, Italy.
authors: Sandro
authors: S
authors: Pelo
authors: Pasquale
authors: P
authors: Correra
authors: Giulio
authors: G
authors: Gasparini
authors: Tito M
authors: TM
authors: Marianetti
authors: Daniele
authors: D
authors: Cervelli
authors: Cristina
authors: C
authors: Grippaudo
authors: Roberto
authors: R
authors: Boniello
authors: Camillo
authors: C
authors: Azzuni
authors: Roberto
authors: R
authors: Deli
authors: Alessandro
authors: A
authors: Moro
mesh_terms: D002508:Cephalometry; D005146:Facial Asymmetry / Q000000981:diagnostic imaging* / Q000601:surgery*; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008334:Mandible / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D008953:Models, Anatomic; D012984:Software; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed; D055815:Young Adult