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Year : 2016  |  Volume : 7  |  Issue : 1  |  Page : 36-40

Three-dimensional localisation of impacted teeth with cone-beam computed tomography: A case series

1 Department of Orthodontics and Dentofacial Orthopaedics, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India
2 Department of Oral Medicine and Radiology, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India
3 Department of Prosthodontics, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India

Correspondence Address:
Taruna Puri
E-33, GHS-94, Sector 20, Panchkula - 134 116, Haryana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-433X.176478

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Since its introduction into dentistry in 1998, cone-beam computed tomography (CBCT) has become an increasingly important source of three-dimensional volumetric data in clinical orthodontics. CBCT should be used only in specific cases in which conventional radiography cannot supply satisfactory diagnostic information; these include patients with cleft palate, assessment of position of unerupted tooth, supernumerary teeth, identification of root resorption, and for planning of orthognathic surgery. Two-dimensional diagnostic imaging, such as traditional radiographs, cephalometric tracings, photographs, and video imaging have been routinely used as orthodontic diagnostic records since many years. The limitations of these imaging modalities include geometric distortion, magnification, superimposition of structures, projective displacements, rotational errors, and linear projective transformation. These errors can be easily overcome by the CBCT. The purpose of this is to highlight the significance of CBCT in diagnosis and treatment planning in the orthodontics.

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