Diagnostic Accuracy of Cone Beam Computed Tomography in Identifying Peri-implantitis–Like Bone Defects Ex Vivo

2021 ◽  
Vol 41 (6) ◽  
pp. e223-e231
Author(s):  
Angel Insua ◽  
Yolanda Gañán ◽  
Yolanda Macías ◽  
Juan Garcia ◽  
Mia Rakic ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Ex Vivo ◽  
Bone Defects ◽  
Cone Beam

scholarly journals Comparison of the different voxel sizes in the estimation of peri-implant fenestration defects using cone beam computed tomography: an ex vivo study

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Mehmet Hakan Kurt ◽  
Nilsun Bağış ◽  
Cengiz Evli ◽  
Cemal Atakan ◽  
Kaan Orhan
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Ex Vivo ◽  
Statistical Significance ◽  
Area Under The Curve ◽  
Titanium Implant ◽  
Bone Defects ◽  
Titanium Implants ◽  
Cone Beam ◽  
Voxel Size

Abstract Background To examine the influence of voxel sizes to detect of peri-implant fenestration defects on cone beam computed tomography (CBCT) images. Materials and methods This study performed with three sheep heads both maxilla and mandible and two types of dental implant type 1 zirconium implant (Zr40) (n = 6) and type 2 titanium implant (Ti22) (n = 10). A total of 14 peri-implant fenestrations (8 buccal surfaces, 6 palatal/lingual surface) were created while 18 surfaces (8 buccal, 10 palatal/lingual) were free of fenestrations. Three observers have evaluated the images of fenestration at each site. Images obtained with 0.75 mm3, 0.100 mm3, 0.150 mm3, 0.200 mm3, and 0.400 mm3 voxel sizes. For intra- and inter-observer agreements for each voxel size, Kappa coefficients were calculated. Results Intra- and inter-observer kappa values were the highest for 0.150 mm3, and the lowest in 0.75 mm3 and 0.400 mm3 voxel sizes for all types of implants. The highest area under the curve (AUC) values were found higher for the scan mode of 0.150 mm3, whereas lower AUC values were found for the voxel size for 0.400 mm3. Titanium implants had higher AUC values than zirconium with the statistical significance for all voxel sizes (p ≤ 0.05). Conclusion A voxel size of 0.150 mm3 can be used to detect peri-implant fenestration bone defects. CBCT is the most reliable diagnostic tool for peri-implant fenestration bone defects.

Diagnostic accuracy of cone beam computed tomography used for assessment of apical periodontitis: an ex vivo histopathological study on human cadavers

2018 ◽  
Vol 52 (4) ◽  
pp. 439-450 ◽  
Author(s):  
C. Kruse ◽  
R. Spin-Neto ◽  
D. C. Evar Kraft ◽  
M. Vaeth ◽  
L.-L. Kirkevang
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Ex Vivo ◽  
Apical Periodontitis ◽  
Cone Beam ◽  
Histopathological Study ◽  
Human Cadavers

Radiologic assessment of mandibular third molars: an ex vivo comparative study of panoramic radiography, extraoral bitewing radiography, and cone beam computed tomography

2019 ◽  
Vol 128 (2) ◽  
pp. 166-175 ◽  
Author(s):  
Bernardo Barbosa Freire ◽  
Eduarda Helena Leandro Nascimento ◽  
Karla de Faria Vasconcelos ◽  
Deborah Queiroz Freitas ◽  
Francisco Haiter-Neto
Keyword(s):  
Computed Tomography ◽  
Comparative Study ◽  
Cone Beam Computed Tomography ◽  
Panoramic Radiography ◽  
Ex Vivo ◽  
Cone Beam ◽  
Third Molars ◽  
Bitewing Radiography ◽  
Radiologic Assessment ◽  
Mandibular Third Molars

Accuracy of High-resolution Small-volume Cone-beam Computed Tomography in Detecting Complex Anatomy of the Apical Isthmi: Ex Vivo Analysis

2018 ◽  
Vol 44 (12) ◽  
pp. 1862-1866 ◽  
Author(s):  
Elen de Souza Tolentino ◽  
Pablo Andrés Amoroso-Silva ◽  
Murilo Priori Alcalde ◽  
Heitor Marques Honório ◽  
Lilian Cristina Vessoni Iwaki ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Cone Beam Computed Tomography ◽  
Small Volume ◽  
Ex Vivo ◽  
Cone Beam ◽  
Complex Anatomy

scholarly journals Diagnostic accuracy of cone beam computed tomography in detection of simulated mandibular condyle erosions

2015 ◽  
Vol 6 (3) ◽  
pp. 97 ◽  
Author(s):  
Nafiseh Nikkerdar ◽  
Shahriar Shahab ◽  
Maryam Goodarzi ◽  
Amin Golshah ◽  
SanazSharifi Shooshtari
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Mandibular Condyle ◽  
Cone Beam

Comparison of Three-Dimensional and Conventional Orthodontic Imaging Modalities for Localization of Impacted Maxillary Canines in Patients With Alveolar Cleft

2020 ◽  
pp. 105566562094698
Author(s):  
Parviz Padisar ◽  
Maryam Tofangchiha ◽  
Behzad Salari ◽  
Sonia Oveisi
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Imaging Modalities ◽  
Cone Beam ◽  
Impacted Tooth ◽  
Alveolar Cleft ◽  
Adjacent Tooth ◽  
Lateral Cephalograms

Objective: The purpose of this study was to identify which diagnostic parameters related to impacted maxillary canines can be reliably detected by the conventional orthodontic radiographic modalities and which factors need to be assessed by cone-beam computed tomography (CBCT). Design: In this cross-sectional study, 8 orthodontists evaluated 7 parameters related to the position and anatomy of the impacted canines by means of 2-dimensional (2D) records. After 1 month, the same process was repeated by means of CBCT by the same clinicians. Setting: Qazvin University of Medical Sciences. Patients and Participants: Thirty-two patients with alveolar cleft and impacted maxillary canines who had CBCT scans, lateral cephalograms, and orthopantomographs as pretreatment records. Main Outcome Measure: The diagnostic accuracy of 2D and 3-dimensional (3D) radiographic modalities was compared with each other and also with the gold standard by 3 radiologists. Results: The diagnostic accuracy of 2D and 3D imaging modalities was not significantly different regarding the mesiodistal inclination of the impacted tooth ( P = .09), apex anatomy ( P = .10), and mesiodistal position of the apex ( P = .19). Cone-beam computed tomography had significantly higher diagnostic accuracy than conventional radiographic modalities regarding overlapping the adjacent tooth ( P = .001), labio–palatal and apico–coronal position of the crown tip, and root resorption of the adjacent tooth ( P = .01). Conclusion: The conventional orthodontic radiographic modalities were as accurate as CBCT for determination of impacted canine inclination, apex anatomy, and mesiodistal position of the apex. Cone-beam computed tomography showed higher diagnostic accuracy for other parameters.

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