Applications of Cone Beam Computed Tomography...

Applications of Cone Beam Computed Tomography in Orthodontics

Author Name : Pallavi Garg, Ajit K. Jaiswal, Girish Chaudhary, Jasmeet K. Ryait, Abhimanyu Kochhar, Kanika Arora

ABSTRACT

Since the introduction of Cone Beam computed tomography (CBCT) in dentistry, it has become an increasingly important source of 3D volumetric information in clinical orthodontics. Traditionally 2-D imaging modalities like orthopantomograms and cephalometric radiography have been used in orthodontic treatment planning and monitoring the treatment progress, but their limitations (the challenges of superimpositions and distortions) have always been a concern. Considering these limitations, three-dimensional imaging (3D) evolved to meet the demands of advanced technologies in delivering an accurate diagnosis and, simultaneously, responsible for developing new treatment strategies. CBCT is recommended in cases where clinical examination supplemented with conventional radiography cannot supply adequate diagnostic information, such as impacted teeth, CL/P, and orthographic or craniofacial surgery patients. CBCT on other cases can also be performed where a positive benefit-to-risk outcome is likely, such as supernumerary teeth, identification of root resorption caused by unerupted teeth, evaluating boundary conditions, TMJ degeneration, and progressive bite changes and for placement of TADs in complex situations. This article provides an overview of the specific applications of CBCT in Orthodontics and the importance of three-dimensional over two-dimensional radiographic modalities.

Keywords: Cone Beam Computed Tomography, Orthodontics, Radiography, X-Ray, 3d Imaging