scholarly journals The importance of 3D imaging for the orthodontic diagnosis and treatment

2016 ◽  
Vol 62 (4) ◽  
pp. 183-189
Author(s):  
Mioara Decusară ◽  
◽  
Cerasella-Dorina Şincar ◽  
Alexandru Nicolau ◽  
Teodora Denisa Gheorghi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Treatment Plan ◽  
Three Dimensional ◽  
Cone Beam ◽  
Dental Radiology ◽  
Radiation Doses ◽  
X Rays ◽  
Radiographic Investigation

Within a century, dental radiology “suffered” transformation, beginning with periapical radiographs, cephalograms and panoramic radiography and continuing with digital imaging and cone beam computed tomography. In contemporary dental practice is importantant to choose the type of radiographic investigation in order to achieve a complete and accurate diagnosis, so necessary for determining the treatment plan for patients with dental-maxillary abnormalities. We conducted a comparative study between conventional radiographic investigation (periapical radiographs, panoramic radiography) and cone beam computed tomography in patients with malocclusions. The costs and radiation doses are low to the classic X-rays, but the diagnosis is given by the two-dimensional image of a three-dimensional dental-maxillary pathologies. Cone Beam CT scans were relatively high in cost and in radiation doses, but provided three-dimensional images and anatomic and radiological data of superior quality to the classics.

scholarly journals Comparison distortion in the mandible skull using panoramic digital radiograpy and Cone Beam Computed Tomography

2016 ◽  
Vol 28 (1) ◽  
Author(s):  
Cek Dara Manja
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Three Dimensional ◽  
Cone Beam ◽  
Radiographic Imaging ◽  
Panoramic Radiographs ◽  
Minimal Distortion ◽  
Digital Panoramic Radiography ◽  
Actual Size

Panoramic radiography is widely used as a tool supporting the diagnosis in dental practice. Currently the technology has evolved with the presence of radiographic imaging such as Cone Beam Computed Tomography (CBCT) that displays a three-dimensional picture. The purpose of this study was to determine large distortions that occur several regio in the mandible using digital panoramic radiographs and CBCT. Method experimental The research on one of the skull laboratories fitted staples vertically and horizontally in alveolar regions 31, 33, 35, 37, 41, 43, 45, 47, and then measured the length of the staples using the term digital. Furthermore, digital panoramic radiography performed with position 00, +50, +100, -50, -100 and CBCT radiography with 00 positions. Measurement description of radiopaque vertical and horizontal lines on digital panoramic radiographs and CBCT are computerized using the EZ software measurement menu. Calculating percentage distortion radiopaque overview of vertical and horizontal lines on digital panoramic radiographs and CBCT of the mandible by doing a comparison of the actual size of the skull. The results obtained on the percentage of minimal distortion of digital panoramic radiographs vertically was in the 31 region positioned +50at 0,23%, in the 33 region positioned 00at 5,99%, in the 35 region positioned -100at -6,33%, in the 37 region positioned +100at -1,46%, in the 41 region positioned -50at 0,46%, in the 43 region positioned 00at 0,52%, in the 45 region positioned +100at -0,45%, in the 47 region positioned +100at -4,76%. The percentage of minimal distortion of digital panoramic radiographs horizontally all of region was positioned 00. The percentage of minimal distortion of  CBCT all of region was positioned 00 and different on each mandible alveolar region. The conclusion of this study is average distortion that occurs in the mandible using CBCT is more less than digital panoramic radiographs. That is mean CBCT more accurate than digital panoramic radiographs.

scholarly journals Case Report: Unusual association of gubernacular canal, supernumerary tooth and odontoma with an impacted canine on cone beam computed tomography

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1204
Author(s):  
Lubna K. Elsayed ◽  
Sara M. El Khateeb ◽  
Suzan A. Alzahrani ◽  
Shatha Subhi ALHarthi ◽  
Raidan Ba-Hattab
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Treatment Plan ◽  
Three Dimensional ◽  
Treatment Protocol ◽  
Spatial Relationship ◽  
Cone Beam ◽  
Supernumerary Tooth ◽  
Impacted Canine ◽  
Compound Odontoma

This report describes a clinical case of asymptomatic compound odontoma in the anterior left side of the maxilla associated with an impacted canine and supernumerary tooth with a gubernacular canal of a 47- year-old female with no relevant medical history. Cone-beam computed tomography (CBCT) was performed for precise three-dimensional localization of each structure and assessment of their spatial relationship with the associated structures before surgery. The treatment protocol involved surgical enucleation of the odontoma and open extraction of both impacted and supernumerary teeth. Patient had uneventful healing and proceeded with the prosthodontic treatment plan. An experienced clinician can accurately diagnose a compound odontoma, as it has distinctive clinical and radiographic features. Thus, early detection and management of odontomas can help correction of any dental irregularity and avoid further complications.

scholarly journals Protocols for radiological diagnosis of various clinical forms of pathological tooth resorption using cone-beam computed tomography

2021 ◽  
Vol 12 (2) ◽  
pp. 98-105
Author(s):  
M. A. Chibisova ◽  
N. M. Batyukov ◽  
I. N. Batyukov
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Treatment Plan ◽  
Three Dimensional ◽  
Permanent Tooth ◽  
Cone Beam ◽  
Successful Outcome ◽  
Comprehensive Treatment ◽  
Dental Patients ◽  
Tooth Resorption

Resorption of hard tissues in a permanent tooth is manifested by the loss of cement or dentin of the tooth. At the initial stages of development, the disease is asymptomatic, which significantly complicates early diagnosis and reduces the likelihood of a successful outcome of treatment. The pathogenesis of the disease has been studied, while the main etiological factor is not known. The researchers point only to the main factors predisposing to the development of tooth resorption. The prevalence of this condition continues to be studied using the new capabilities of cone-beam computed tomography (CBCT), which allows for the earliest and most reliable diagnosis. The three-dimensional X-ray image of the tooth structures makes it more possible to visualize dentin defects at all root levels, and when they are localized on different surfaces. It is this aspect in the diagnosis of pathological tooth resorption that is crucial, since it determines the treatment tactics in general, and the creation of access in conservative surgical treatment. This method of radiation diagnostics has become the standard for examining a dental patient in the clinics of the Department of Dentistry of the MED Clinic System. The algorithm of reading and interpreting the data of computer tomograms, developed in SPBINST, is also used. Examination of dental patients involves the use of CBCT for the preparation of a comprehensive treatment plan, during all types of endodontic treatment, and for monitoring during follow-up in dynamics.

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.

scholarly journals Variations in vertical mucosal thickness at edentulous ridge according to site and gender measured by cone-beam computed tomography

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Motohiro Munakata ◽  
Koudai Nagata ◽  
Minoru Sanda ◽  
Ryota Kawamata ◽  
Daisuke Sato ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Treatment Plan ◽  
Cone Beam ◽  
Alveolar Ridge ◽  
Marginal Bone Loss ◽  
Mandibular Molar ◽  
Mucosal Thickness ◽  
And Gender ◽  
Edentulous Patients

Abstract Background The vertical thickness of the peri-implant mucosa is associated with the amount of post treatment marginal bone loss. However, the variations in mucosal thickness at the different edentulous sites have been sparsely documented. The purpose of the study was to conduct a survey of the frequency distribution of variations in mucosal thickness at the different sites of the edentulous alveolar ridge and to compare them according to gender. Our study included 125 partially edentulous patients having a total of 296 implant sites. Cone-beam computed tomography (CBCT) scans were obtained by placing a diagnostic template with a radiopaque crown indicator on the ridge to determine the mucosal thickness at the crest of the alveolar ridge. Results The mucosal thickness was 3.0±1.3 mm in the maxilla, which was significantly greater than the mucosal thickness of 2.0±1.0 mm in the mandible (p<0.001). In both the maxilla and the mandible, the mucosa was the thickest in the anterior region, followed by the premolar and molar regions. Sites were further classified into two groups based on whether the mucosal thickness was greater than 2 mm. In the mandible, more than half of the sites showed a mucosal thickness of 2 mm or less. Conclusions Although this study was a limited preoperative study, the vertical mucosal thickness at the edentulous ridge differed between the maxillary and mandibular regions. The majority of sites in the mandibular molar region had a mucosal thickness of less than 2 mm. Practitioners might be able to develop an optimal dental implant treatment plan for long-term biologic and esthetic stability by considering these factors.

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.

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