scholarly journals Applications of cone beam computed tomography in endodontics

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Ateksha Bhardwaj Khanna
Keyword(s):  
Computed Tomography ◽  
Treatment Planning ◽  
Cone Beam Computed Tomography ◽  
Oral Surgery ◽  
Three Dimensional ◽  
Conventional Radiography ◽  
Cone Beam ◽  
Oral Radiology ◽  
Manual Search ◽  
First Choice

Abstract Background Endodontic disease can adversely affect the quality of life and therefore early diagnosis and consequent timely treatment is of paramount importance for the Endodontist. Radiology is an essential component in treatment planning, disease monitoring and assessment of treatment outcome. Periapical radiographs and panoramic radiography are frequently utilised but they provide only two-dimensional representation of three-dimensional structures. The advent of cone beam computed tomography (CBCT) offers three-dimensional accuracy of the hard tissue images with a reasonable cost and this has revolutionised imaging of the dentomaxillofacial structures. This imaging system has been seen to overcome some limitations of conventional radiography, as brought out in this review. The improvement in the accuracy is, however, accompanied at the cost of increased radiation exposure to the patient. Nevertheless, smaller areas of exposure are normally appropriate for endodontic imaging, and adjustment in the exposure parameters can further moderate the effective dose (Loubele et al. 37(6):309-18, 2008). Aims and objectives The aim of this review is to present the pertinent literature on the various applications of cone beam computed tomography in the field of endodontics. Methods Literature was electronically searched on the following sources; Medline and Keats Library. Further, a manual search was performed on the following journals: International Endodontic Journal, Journal of Endodontics, Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, Endodontology, Journal of Dental Research, European Journal of Oral Sciences & Odontology and Dentomaxillofacial Radiology. A preliminary search was performed to gain an idea of the available literature using keywords ‘Cone Beam Computed Tomography’ to view the volume of the literature evident and identify questions to be addressed in this review. The initial search showed 243 potential articles. After scrutinising the titles and abstracts of the retrieved articles, 70 relevant studies were reviewed in full text. Furthermore, ‘published guidelines on the use of CBCT’ were also searched so as to include the results as an additional source material. All the articles eligible to be included in the review were in the English language and ranged from the year 1960 to the present. Also all the studies reviewed were based on the various uses of cone beam computed tomography in the field of endodontics. The keywords used to search were ‘Cone Beam Computed Tomography (CBCT)’, ‘Conventional radiography’, ‘Applications of CBCT in endodontics’, ‘CBCT and tooth morphology’, ‘CBCT and apical periodontitis’, ‘CBCT and vertical root fractures’, ‘CBCT and resorption’, ‘CBCT and pre-surgical assessment’, ‘CBCT and dento-alveolar trauma’ and ‘CBCT and endodontic outcome’. Results Every case is unique and CBCT should be considered only after studying each case individually. CBCT imaging needs to be adopted or used where information from conventional imaging systems is either inadequate for the management of endodontic problems or inconclusive. Having said that, it is safe to state that CBCT imaging has the potential to become the first choice for endodontic treatment planning and outcome assessment, especially when new scanners with lower radiation doses and enhanced resolution would be available.

scholarly journals Tomografia computadorizada no planejamento cirúrgico em Periodontia: revisão de literatura

2016 ◽  
Vol 73 (4) ◽  
pp. 305
Author(s):  
Alessandra Areas e Souza ◽  
Ingrid De Assis Mota Costa ◽  
Paula Mozer Vidal
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Surgical Planning ◽  
Three Dimensional ◽  
Conventional Radiography ◽  
Bone Defects ◽  
Response To Treatment ◽  
Cone Beam ◽  
Pubmed Database ◽  
Periodontal Biotype

Objective: The aim of this study was to conduct a literature review on the use of cone-beam computed tomography in periodontics and determine the extent and severity of periodontal lesions so as to encourage the development of a new concept for diagnosis and surgical planning in periodontics. Material and methods: A literature search was conducted in PubMed database using the following keywords: computed tomography, diagnosis periodontics, bone defects, furcation lesions, and periodontal biotype. A total of 33 articles were found. Results: A review of the articles suggested benefits in using this technology in periodontal surgical planning, for treatment of furcation lesions, bone defects, and determination of periodontal biotype. Conclusion: Cone-beam computed tomography three-dimensional images is superior to conventional radiography. It also minimizes patient exposure to ionizing radiation, optimizes surgical planning, and decreases operative time, leading to a better response to treatment. This technology is very useful in clinical practice, but is not used widely in periodontics. We believe that the use of this technology should be promoted among professionals.

scholarly journals Three-dimensional Imaging in Implant Assessment for the Prosthodontist: Utilization of the Cone Beam Computed Tomography

2014 ◽  
Vol 4 (1) ◽  
pp. 23-33
Author(s):  
Minu Raju ◽  
Shobha J Rodrigues ◽  
Mahesh Mundathaje ◽  
Sabaa Qureshi
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
3D Imaging ◽  
Randomized Clinical Trials ◽  
Three Dimensional ◽  
Absorbed Dose ◽  
Cone Beam ◽  
Three Dimensional Imaging ◽  
Manual Search ◽  
Clinical Literature

ABSTRACT Background The evolution of cone beam computed tomo- graphy three-dimensional (CBCT 3D) imaging has dramatically changed the potential for presurgical and pretreatment planning, such that outcomes are more predictable and complications more avoidable. Purpose The purpose of this article was to systematically review scientific and clinical literature pertaining to the uses and benefits of 3D imaging CBCT for diagnosis and treatment planning in Implantology including prosthodontics. Materials and methods Various databases, like PubMed, EBSCOhost and ScienceDirect, were searched from 1998 to 2010 to retrieve articles regarding the clinical applications of CBCT in dentistry. Cone beam computed tomography in dentistry was used as a key phrase to extract relevant articles in dentistry. A manual search for the references from the retrieved articles was also completed. The articles published only in English, randomized clinical trials, prospective and retrospective clinical studies, laboratory and computer-generated research were included.   The search revealed 540 articles of which 447 were irrele- vant to the study and therefore excluded. Results Cone beam computed tomography has created an opportunity for clinicians to acquire the highest quality diagno- stic images with an absorbed dose that is comparable to other dental radiological examinations and less than a conventional CT. Therefore, if placement of an implant might approach a nerve, invade the sinus, or penetrate out of the confines of the jawbone, the patient should be offered a discussion of CBCT 3D imaging. In addition, CBCT 3D patients should be advised of the risks, benefits and alternatives to such treatment, based upon any additional data provided by the imaging. How to cite this article Rodrigues SJ, Mundathaje M, Raju M, Qureshi S. Three-dimensional Imaging in Implant Assessment for the Prosthodontist: Utilization of the Cone Beam Computed Tomography. Int J Prosthodont Restor Dent 2014;4(1):23-33.

scholarly journals Management of Oehler’s Type III Dens Invaginatus Using Cone Beam Computed Tomography

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Jaya Ranganathan ◽  
Mohan Kumar Rangarajan Sundaresan ◽  
Srinivasan Ramasamy
Keyword(s):  
Computed Tomography ◽  
Treatment Planning ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Root Apex ◽  
Cone Beam ◽  
Type Iii ◽  
Appropriate Treatment ◽  
Diagnostic Difficulties ◽  
Dens Invaginatus

Dens Invaginatus is a dental malformation that poses diagnostic difficulties in the clinical context. This anomaly may increase the risk of pulp disease and can potentially complicate endodontic procedure due to the aberrant root canal anatomy. Compared to conventional radiographs, three-dimensional images obtained with Cone Beam Computed Tomography (CBCT) are invaluable in the diagnosis of the extent of this anomaly and in the appropriate treatment planning. Oehler’s classification (1957) for Dens Invaginatus (DI) into three types depending on the depth of the invagination has been used for treatment planning. Of the three types Type III DI is characterized by infolding of the enamel into the tooth up to the root apex and is considered as the most severe variant of DI and hence the most challenging to treat endodontically, due to the morphological complexities. This report describes a case of Oehler’s Type III DI in a necrotic permanent maxillary lateral incisor in which CBCT images played a key role in diagnosis and treatment planning. The case was managed successfully by a combination of nonsurgical and surgical endodontic therapy with orthograde and retrograde thermoplastic gutta percha obturation.

scholarly journals Cone beam computed tomography in endodontics

2012 ◽  
Vol 23 (3) ◽  
pp. 179-191 ◽  
Author(s):  
Conor Durack ◽  
Shanon Patel
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Imaging System ◽  
Three Dimensional ◽  
Conventional Radiography ◽  
Cone Beam ◽  
Facial Skeleton ◽  
Effective Radiation Dose ◽  
Potential Applications ◽  
Effective Radiation

Cone beam computed tomography (CBCT) is a contemporary, radiological imaging system designed specifically for use on the maxillo-facial skeleton. The system overcomes many of the limitations of conventional radiography by producing undistorted, three-dimensional images of the area under examination. These properties make this form of imaging particularly suitable for use in endodontics. The clinician can obtain an enhanced appreciation of the anatomy being assessed, leading to an improvement in the detection of endodontic disease and resulting in more effective treatment planning. In addition, CBCT operates with a significantly lower effective radiation dose when compared with conventional computed tomography (CT). The purpose of this paper is to review the current literature relating to the limitations and potential applications of CBCT in endodontic practice.

Practice-Based Cone-Beam Computed Tomography: A Review

2010 ◽  
Vol os17 (4) ◽  
pp. 161-167 ◽  
Author(s):  
Crawford F Gray
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Oral Surgery ◽  
Three Dimensional ◽  
Ionising Radiation ◽  
Cone Beam ◽  
The Public ◽  
Training Requirements ◽  
Environment Exposure ◽  
Implant Dentistry

Sectional imaging is a useful tool for the dental practitioner, especially in the fields of oral surgery and implant dentistry. Until recently, the most readily available way to gain three-dimensional information has been computed tomography (CT). The main drawbacks to using this technique have been the substantial dose of ionising radiation and accessibility. Cone-beam computed tomography (CBCT) allows 3D imaging to be made using bespoke equipment designed for the dental practice environment. Exposure to ionising radiation is substantially lower than that for an average x-ray CT scan, but in most cases is still greater than when other dental radiographs are taken. Various guidelines are now in the public domain and these are referenced within this review of CBCT. The concepts of appropriate selection criteria and optimisation of imaging parameters are stressed, along with compliance with the regulations relating to the use of ionising radiation—Ionising Radiation Regulations 1999 and Ionising Radiation (Medical Exposure) Regulations 2000—and training requirements.

3D Reconstructions from Few Projections in Oral Radiology

2010 ◽  
pp. 108-121
Author(s):  
Ralf K.W. Schulze
Keyword(s):  
Computed Tomography ◽  
Information Technology ◽  
3D Reconstruction ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Cone Beam ◽  
Oral Radiology ◽  
Reconstruction Problem ◽  
3D Reconstructions ◽  
X Ray

Established techniques for three-dimensional radiographic reconstruction such as computed tomography (CT) or, more recently cone beam computed tomography (CBCT) require an extensive set of measurements/ projections from all around an object under study. The x-ray dose for the patient is rather high. Cutting down the number of projections drastically yields a mathematically challenging reconstruction problem. Few-view 3D reconstruction techniques commonly known as “tomosynthetic reconstructions” have gained increasing interest with recent advances in detector and information technology.

scholarly journals Accuracy and Reproducibility of Facial Measurements of Digital Photographs and Wrapped Cone Beam Computed Tomography (CBCT) Photographs

Diagnostics ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 757
Author(s):  
Maged Sultan Alhammadi ◽  
Abeer Abdulkareem Al-mashraqi ◽  
Rayid Hussain Alnami ◽  
Nawaf Mohammad Ashqar ◽  
Omar Hassan Alamir ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
Cone Beam Computed Tomography ◽  
High Reliability ◽  
Three Dimensional ◽  
Cone Beam ◽  
Cross Sectional ◽  
Facial Profile ◽  
Digital Photographs ◽  
Gonial Angle

The study sought to assess whether the soft tissue facial profile measurements of direct Cone Beam Computed Tomography (CBCT) and wrapped CBCT images of non-standardized facial photographs are accurate compared to the standardized digital photographs. In this cross-sectional study, 60 patients with an age range of 18–30 years, who were indicated for CBCT, were enrolled. Two facial photographs were taken per patient: standardized and random (non-standardized). The non-standardized ones were wrapped with the CBCT images. The most used soft tissue facial profile landmarks/parameters (linear and angular) were measured on direct soft tissue three-dimensional (3D) images and on the photographs wrapped over the 3D-CBCT images, and then compared to the standardized photographs. The reliability analysis was performed using concordance correlation coefficients (CCC) and depicted graphically using Bland–Altman plots. Most of the linear and angular measurements showed high reliability (0.91 to 0.998). Nevertheless, four soft tissue measurements were unreliable; namely, posterior gonial angle (0.085 and 0.11 for wrapped and direct CBCT soft tissue, respectively), mandibular plane angle (0.006 and 0.0016 for wrapped and direct CBCT soft tissue, respectively), posterior facial height (0.63 and 0.62 for wrapped and direct CBCT soft tissue, respectively) and total soft tissue facial convexity (0.52 for both wrapped and direct CBCT soft tissue, respectively). The soft tissue facial profile measurements from either the direct 3D-CBCT images or the wrapped CBCT images of non-standardized frontal photographs were accurate, and can be used to analyze most of the soft tissue facial profile measurements.

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