Cone-Beam Computed Tomography in Orthodontics: Benefits and Limitations

Holberg, Christof; Steinhäuser, Stefanie; Geis, Phillip; Rudzki-Janson, Ingrid

doi:10.1007/s00056-005-0519-z

Cited by 165 publications

(135 citation statements)

References 12 publications

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“…The current standard of care for overlay-free imaging in orthodontics is conventional CT. 41 Low-cost office-based CBCT imaging has recently been explored for orthodontic applications, including assessment of palatal bone thickness, skeletal growth patterns, dental age estimation, upper airway evaluation, and visualization of impacted teeth. [42][43][44][45][46][47] Although preliminary results are encouraging, established cross-sectional techniques such as conventional CT provide superior image quality of dental and surrounding structures for advanced orthodontic treatment planning.…”

Section: Orthodonticsmentioning

confidence: 99%

“…[42][43][44][45][46][47] Although preliminary results are encouraging, established cross-sectional techniques such as conventional CT provide superior image quality of dental and surrounding structures for advanced orthodontic treatment planning. 41 Low dosing requirements appear to remain a benefit of CBCT when compared with conventional CT, with a routine orthodontic CBCT study delivering an effective dose of Յ61.1 Sv compared with 429.7 Sv for multisection CT. 48 Lateral cephalograms deliver 10.4 Sv in comparison, though without the benefit of 3D structural visualization.…”

Section: Orthodonticsmentioning

confidence: 99%

See 1 more Smart Citation

Conebeam CT of the Head and Neck, Part 2: Clinical Applications

Miracle¹,

Mukherji²

2009

AJNR Am J Neuroradiol

301

207

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SUMMARY: Conebeam x-ray CT (CBCT) is being increasingly used for point-of-service head and neck and dentomaxillofacial imaging. This technique provides relatively high isotropic spatial resolution of osseous structures with a reduced radiation dose compared with conventional CT scans. In this second installment in a 2-part review, the clinical applications in the dentomaxillofacial and head and neck regions will be explored, with particular emphasis on diagnostic imaging of the sinuses, temporal bone, and craniofacial structures. Several controversies surrounding the emergence of CBCT technology will also be addressed. C onebeam CT (CBCT) is an advancement in CT imagingthat has begun to emerge as a potentially low-dose crosssectional technique for visualizing bony structures in the head and neck. The physical principles, image quality parameters, and technical limitations relevant to CBCT imaging were discussed in Part 1 of this 2-part series. The second part presented here will highlight the evidence related to CBCT applications in head and neck as well as dentomaxillofacial imaging. Controversial aspects of this technology will also be addressed, including limitations in image quality and its often officebased operational model.CBCT was first adapted for potential clinical use in 1982 at the Mayo Clinic Biodynamics Research Laboratory. 1 Initial interest focused primarily on applications in angiography in which soft-tissue resolution could be sacrificed in favor of high temporal and spatial-resolving capabilities. Since that time, several CBCT systems have been developed for use both in the interventional suite and for general applications in CT angiography. 2,3 Exploration of CBCT technologies for use in radiation therapy guidance began in 1992, 4,5 followed by integration of the first CBCT imaging system into the gantry of a linear accelerator in 1999. 6 The first CBCT system became commercially available for dentomaxillofacial imaging in 2001 (NewTom QR DVT 9000; Quantitative Radiology, Verona, Italy). Comparatively low dosing requirements and a relatively compact design have also led to intense interest in surgical planning and intraoperative CBCT applications, particularly in the head and neck but also in spinal, thoracic, abdominal, and orthopedic procedures. [7][8][9][10][11] Diagnostic applications in CT mammography and head and neck imaging are also under evaluation. 12-14 The technical and clinical considerations pertaining to CBCT imaging in many of these applications have been the subjects of several recent reviews. [15][16][17][18][19] The recent review by Dörfler et al 16 of the neurointerventional applications of CBCT is of particular interest to the field of neuroradiology.The discussion below will focus on the diagnostic and treatment-planning applications of CBCT in dentomaxillofacial and head and neck imaging. Commercially available CBCT systems for dentomaxillofacial imaging include the CB MercuRay and CB Throne (Hitachi Medical, Kashiwi-shi, Chiba-ken, Japan), 3D Accuitomo products (J. Mor...

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Section: Orthodonticsmentioning

confidence: 99%

Section: Orthodonticsmentioning

confidence: 99%

Conebeam CT of the Head and Neck, Part 2: Clinical Applications

Miracle¹,

Mukherji²

2009

AJNR Am J Neuroradiol

301

207

View full text Add to dashboard Cite

show abstract

“…However, there appears to be a lack of awareness and some controversy regarding the use of CBCT for routine orthodontic treatment because of its inherent limitations, e.g., radiation dose (18,19). Some of the proven advantages of CBCT (20,21) and its increasing patient popularity have led to a rising trend towards incorporating CBCT for all orthodontic patients. However, as responsible health care providers, we must not neglect fundamentals such as the ALARA principle -"as low as reasonably achievable."…”

Section: Introductionmentioning

confidence: 99%

Applications of Cone Beam Computed Tomography in Orthodontics: A Review

et al. 2017

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Cone Beam Computed Tomography (CBCT) is being extensively used in orthodontics for diagnostic and treatment planning, especially in complex clinical conditions. The objective of this study was to review the English language literature for current applications and trends of CBCT in orthodontic diagnosis and treatment. Several electronic databases were searched with the primary words: "orthodontics and radiography" and "cone beam computed tomography" or "CBCT. " Abstracts that appeared to fulfill our inclusion criteria were selected, and the complete articles were obtained. Twenty-eight abstracts initially met our search criteria, and 12 were selected for the review. Ten articles were later added to the list after hand searching the references. It was concluded that there is a need for prospective randomized clinical trials to evaluate the risk/benefit ratio of CBCT, such as higher cost, greater risk for radiation dose (compared to digital panoramic and cephalograms) versus superior diagnosis and treatment outcomes.

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“…To image craniofacial anatomy, low-dose cone beam computed tomography (CBCT) uses a conical beam of X-rays instead of the conventional fan beam of multislice computed tomography (CT). Thus, CBCT results in reduced adsorption of radiation compared with traditional CT and provides a greater quantity of information than two-dimensional (2D) exams [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Direct 3D Cephalometric Analysis Performed on CBCT

Farronato¹,

Perillo²,

Bellincioni³

et al. 2012

J Inform Tech Soft Engg

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Cone Beam Computed Tomography produces distortion-free and accurate images of the craniofacial anatomy, and can be considered as a useful instrument to perform a correct diagnosis and treatment using a cephalometric analysis. Now a days the 3D cephalometric analysis are made by adapting on 3D what was born on 2D, so it can be necessary to find a new technique that was born directly on 3D.Sixty-five Ricketts' first skeletal classes were chosen in an archive of 700 CBCT acquisitions. 3 easily repeatable reference planes were found on each case and then 15 points were selected on the skull, for a total of 18 cephalometric points. Each point of these 65 patients creates a cloud of points that could represent the range of normality in the 3D space. The coordinates of each analyzed point presented a standard deviation between 0, 00 and 5, 64. This range of values may be considered representative for the first skeletal class.Authors agree that further studies are needed but the Direct 3D cephalometric analysis may be considered a new easy, precise and rapid way to reach a correct diagnosis and treatment with a cephalometric analysis born directly on 3D.

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Cone-Beam Computed Tomography in Orthodontics: Benefits and Limitations

Abstract: Dental CT still represents the gold-standard for inspecting the dental roots and their surrounding bone.

Cited by 165 publications

References 12 publications

Conebeam CT of the Head and Neck, Part 2: Clinical Applications

Conebeam CT of the Head and Neck, Part 2: Clinical Applications

Applications of Cone Beam Computed Tomography in Orthodontics: A Review

Direct 3D Cephalometric Analysis Performed on CBCT

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