Implementation of ultra-low-dose CBCT for routine 2D orthodontic diagnostic radiographs: Cephalometric landmark identification and image quality assessment

Kusnoto, Budi; Kaur, Pardeep; Salem, Abdelrahman; Zheng, Zhang; Galang‐Boquiren, Maria Therese; Viana, Grace; Evans, Carla A.; Manasse, Robert J.; Monahan, Richard; BeGole, Ellen A.; Abood, Ayas; Han, Xiao; Sidky, Emil Y.; Pan, Xiaochuan

doi:10.1053/j.sodo.2015.07.001

Cited by 28 publications

(18 citation statements)

References 13 publications

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“…CBCT has been recommended for preoperative evaluation of the available bone in the posterior maxilla and assessing health or pathology of the maxillary sinus by several professional organizations [2][3][4]. The visualization of maxillary sinuses for diagnostic purposes has been also recommended in other disciplines of dental medicine such as endodontology for assessment of teeth undergoing apical surgery [5], orthodontics [6], and for the analysis of cysts or neoplasias in the maxillary region [7].…”

Section: Introductionmentioning

confidence: 99%

Frequency, location, and association with dental pathology of mucous retention cysts in the maxillary sinus. A radiographic study using cone beam computed tomography (CBCT)

et al. 2017

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Section: Introductionmentioning

confidence: 99%

Frequency, location, and association with dental pathology of mucous retention cysts in the maxillary sinus. A radiographic study using cone beam computed tomography (CBCT)

et al. 2017

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“…Thus, for the patients who already have biplanar images for orthopedic purposes, no additional regular lateral/posterior-anterior cephalometric X-rays are needed if the patients are also seeking orthodontic and orthognathic management [ 43 ]. In addition, an ultra-low-dose CBCT imaging system has also been introduced in the dental field [ 44 , 45 ]. Excitingly, outside the range of 2 mm or degrees, there is no statistical difference in performing cephalometric analysis on the full-volume CBCTs taken under the ultra-low-dose protocol and standard protocol [ 38 , 45 ].…”

Section: Discussionmentioning

confidence: 99%

The Reliability of Two- and Three-Dimensional Cephalometric Measurements: A CBCT Study

Teixeira

Tanna

et al. 2021

Diagnostics

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Cephalometry is a standard diagnostic tool in orthodontic and orthognathic surgery fields. However, built-in magnification from the cephalometric machine produces double images from left- and right-side craniofacial structures on the film, which poses difficulty for accurate cephalometric tracing and measurements. The cone-beam computed tomography (CBCT) images not only allow three-dimensional (3D) analysis, but also enable the extraction of two-dimensional (2D) images without magnification. To evaluate the most reliable cephalometric analysis method, we extracted 2D lateral cephalometric images with and without magnification from twenty full-cranium CBCT datasets; images were extracted with magnification to mimic traditional lateral cephalograms. Cephalometric tracings were performed on the two types of extracted 2D lateral cephalograms and on the reconstructed 3D full cranium images by two examiners. The intra- and inter-examiner intraclass correlation coefficients (ICC) were compared between linear and angular parameters, as well as between CBCT datasets of adults and children. Our results showed that overall, tracing on 2D cephalometric images without magnification increased intra- and inter-examiner reliability, while 3D tracing reduced inter-examiner reliability. Angular parameters and children’s images had the lowest inter- and intra-examiner ICCs compared with adult samples and linear parameters. In summary, using lateral cephalograms extracted from CBCT without magnification for tracing/analysis increased reliability. Special attention is needed when analyzing young patients’ images and measuring angular parameters.

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“…The review of recent literature reveals some advantages [1,[5][6][7][8][9][10][11][12][13][14][15] and disadvantages [16][17][18][19][20] as following:…”

Section: Advantages and Disadvantages Of Using Cbct In Orthodonticsmentioning

confidence: 99%

Cone Beam Computed Tomography in Orthodontics

Kaygısız¹,

Tortop²

2017

Computed Tomography - Advanced Applications

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Cone beam computed tomography (CBCT) is an important source of three-dimensional volumetric data in clinical orthodontics. Due to the progress in the technology of CBCT, for orthodontic clinical diagnosis, treatment and follow-up, CBCT supply much more reliable information compared to conventional radiography. The most justified indications for the use of CBCT in orthodontics are the existence of impacted and transposed teeth. For the management of the impacted teeth, CBCT enhances the ability to localize these teeth accurately and to assess root resorption of adjacent teeth. Patients with craniofacial anomalies like cleft palate cases, the abnormalities of the temporomandibular joint contributing malocclusion, evaluation of airway morphology in obstructive sleep apnea cases, patients needing maxillary expansion or planning orthognathic surgery in severe skeletal discrepancies are also listed among the indications of using CBCT in orthodontics. CBCT is useful in identifying optimal site location for temporary skeletal anchorage device. The use of CBCT for the assessment of treatment outcomes and evaluation of cervical vertebral maturation are still controversial issues. It should be kept in mind that before using CBCT, justification and evaluation of risks and benefits are needed. In order to minimize the radiation dose, the exam should include only the areas of interest.

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Implementation of ultra-low-dose CBCT for routine 2D orthodontic diagnostic radiographs: Cephalometric landmark identification and image quality assessment

Cited by 28 publications

References 13 publications

Frequency, location, and association with dental pathology of mucous retention cysts in the maxillary sinus. A radiographic study using cone beam computed tomography (CBCT)

Frequency, location, and association with dental pathology of mucous retention cysts in the maxillary sinus. A radiographic study using cone beam computed tomography (CBCT)

The Reliability of Two- and Three-Dimensional Cephalometric Measurements: A CBCT Study

Cone Beam Computed Tomography in Orthodontics

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