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Original Article

Computed tomography utility in orthodontics. Part II. 3D cephalometry. Transverse study

2007, Volumen 37, Número 4
Gloria Montoto, Martín Puente Rodríguez, Luis Carlos Hernández, Luciano Galbán, Vicente Martínez, Eliseo Plasencia
Odontóloga. Máster en Ortodoncia. Universidad de Oviedo. Oviedo, Asturias

Cephalometric tracing is the most helpful diagnosis method when we have to evaluate an orthodontic treatment for our patient. Radiographs of different kinds (lateral, panoramic radiographs), photographs and dental casts are the most common registries taken during this kind of treatments. Lateral radiography shows a unique sagital cut of the head. It is used to analyse the antero-posterior and upright/vertical malocclusions. Dental casts are used to study transversal problems in order to diagnose dental problems. Postero- anterior radiography is used as a complementary method to diagnose transversal skeletal problems. Dental casts have the disadvantage that they cannot be spatially placed on the skull. The postero-anterior radiography has the problem that superposes structures. The CT enables a dental and skeletal study without superpositions and with a view of all the structures in many cuts at different levels. We present a systematic of transversal dento-skeletal evaluation using CT.  (Rev Esp Ortod. 2007;37(4):237-248)

Key words:
3D cephalometry. Transverse cephalometry. TC cephalometry.
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