Effect of voxel size on detection of fenestration, dehiscence and furcation defects using cone-beam computed tomography

2021 ◽  
Author(s):  
Masoumeh Eftekhar ◽  
Hanieh Kaviani ◽  
Nina Rouzmeh ◽  
Aitin Torabinia ◽  
Alireza Akbarzadeh Baghban
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Voxel Size ◽  
Furcation Defects

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.

Effects of voxel size and resolution on the accuracy of endodontic length measurement using cone beam computed tomography

2016 ◽  
Vol 208 ◽  
pp. 96-102 ◽  
Author(s):  
Ali Murat Aktan ◽  
Cihan Yildirim ◽  
Emrah Karataşlıoğlu ◽  
Mehmet Ertuğrul Çiftçi ◽  
Fatih Aksoy
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Length Measurement ◽  
Cone Beam ◽  
Voxel Size

scholarly journals Determining the accuracy of measurement of alveolar bone crest level and bone plate thickness with cone-beam computed tomography using different voxel size

2019 ◽  
Vol 6 (3) ◽  
pp. 8-12
Author(s):  
Shruthi S. Fasalkar ◽  
G. Shubha ◽  
B. N. Praveen ◽  
A. R. Shubhasini ◽  
G. Keerthi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Plate Thickness ◽  
Bone Plate ◽  
Cone Beam ◽  
Voxel Size ◽  
Accuracy Of Measurement

scholarly journals Assessment of Trabecular Bone During Dental Implant Planning using Cone-beam Computed Tomography with High-resolution Parameters

2021 ◽  
Vol 15 (1) ◽  
pp. 57-63
Author(s):  
Lauren Bohner ◽  
Pedro Tortamano ◽  
Felix Gremse ◽  
Israel Chilvarquer ◽  
Johannes Kleinheinz ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Trabecular Bone ◽  
Cone Beam Computed Tomography ◽  
Volume Fraction ◽  
Statistical Significance ◽  
Cone Beam ◽  
Bone Volume Fraction ◽  
Voxel Size ◽  
Trabecular Thickness

Background: Cone-Beam Computed Tomography (CBCT) with high-resolution parameters may provide an acceptable resolution for bone assessment. Objectives: The purpose of this study is to assess trabecular bone using two cone-beam computed tomography (CBCT) devices with high-resolution parameters in comparison to micro-computed tomography (µCT). Methods: Bone samples (n=8) were acquired from dry mandibles and scanned by two CBCT devices: 1) VV (Veraview R100, Morita; FOV 4x4, 75kV, 9mA, voxel size 0.125µm); and PR (Prexion 3D, Prexion; FOV 5x5, 90kV, 4mA, 37s, voxel size 108µm). Gold-standard images were acquired using µCT (SkyScan 1272; Bruker; 80kV, 125mA, voxel size 16µm). Morphometric parameters (BvTv- Bone Volume Fraction, BsBv- Trabecular specific surface, TbTh- Trabecular thickness and TbSp- Trabecular separation) were measured. Statistical analysis was performed within ANOVA, Spearman Correlation test and Bland-Altmann plots with a statistical significance level at p=0.05. Results: CBCT devices showed similar BvTv values in comparison to µCT. No statistical difference was found for BvTv parameters assessed by CBCT devices and µCT. BsBv values were underestimated by CBCT devices (p<0.01), whereas TbTh and TbSp values were overestimated by them (p<0.01). Positive correlations were found between VV and µCT measurements for BvTv (r2= 0.65, p=0.00), such as between PR and µCT measurements for TbSp (r2= 0.50, p=0.04). For BsBv measurements, PR was negatively correlated with µCT (r2= -0.643, p=0.01). Conclusion: The evaluated CBCT device was able to assess trabecular bone. However, bone parameters were under or overestimated in comparison to µCT.

scholarly journals ACCURACY OF CONE BEAM COMPUTED TOMOGRAPHY (CBCT) IN ASSESSMENT OF MANDIBULAR MOLAR FURCATION DEFECTS AS COMPARED TO THE INTRA-OPERATIVE FINDINGS

2019 ◽  
Vol 44 (1) ◽  
pp. 75-80
Author(s):  
Hisham M. Warda ◽  
Yousria S. Gaweesh ◽  
Adel M. Rizk ◽  
Rania A. Fahmy
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Furcation Defects ◽  
Mandibular Molar ◽  
Operative Findings

scholarly journals Role of Cone-Beam Computed Tomography in the Management of Periodontal Disease

2019 ◽  
Vol 7 (2) ◽  
pp. 57 ◽  
Author(s):  
V. Thomas Eshraghi ◽  
Kyle A. Malloy ◽  
Mehrnaz Tahmasbi
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Periodontal Diseases ◽  
Standard Of Care ◽  
Cone Beam ◽  
Additional Information ◽  
Technological Advances ◽  
Furcation Defects ◽  
The Individual

The goal of this paper was to review the current literature surrounding the use of cone beam computed tomography (CBCT) related to the diagnosis, prognostic determination, and treatment of periodontal diseases. A literature review was completed to identify peer-reviewed articles related to CBCT and periodontics. The results were filtered to pool only articles specific to CBCT and periodontal diagnosis, prognosis, and treatment/outcomes. The articles were reviewed and findings summarized. Author’s commentary on technological advances and additional potential uses of CBCT in the field of periodontics were included. There is evidence to suggest that CBCT imaging can be more accurate in diagnosing specific periodontal defects (intrabony and furcation defects), and therefore be helpful in the prognostic determination and treatment planning. However, at this time, CBCT cannot be recommended as the standard of care. It is up to the individual clinician to use one’s own judgment as to when the additional information provided by CBCT may be beneficial, while applying the As Low As Reasonably Achievable (ALARA) principle. With continued technological advances in CBCT imaging (higher resolution, reduced imaging artifacts, lower exposure, etc.) the author’s believe that CBCT usage will become more prominent in diagnosis and treatment of periodontal diseases.

The effects of voxel size on cone beam computed tomography images of the temporomandibular joints

2015 ◽  
Vol 119 (2) ◽  
pp. 229-237 ◽  
Author(s):  
Trish D. Lukat ◽  
Susanne E. Perschbacher ◽  
Michael J. Pharoah ◽  
Ernest W.N. Lam
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Voxel Size ◽  
Computed Tomography Images ◽  
Temporomandibular Joints

Cone-beam computed tomography to detect erosions of the temporomandibular joint: Effect of field of view and voxel size on diagnostic efficacy and effective dose

2011 ◽  
Vol 140 (1) ◽  
pp. e25-e30 ◽  
Author(s):  
Zachary T. Librizzi ◽  
Aditya S. Tadinada ◽  
Jayasanker V. Valiyaparambil ◽  
Alan G. Lurie ◽  
Sanjay M. Mallya
Keyword(s):  
Computed Tomography ◽  
Effective Dose ◽  
Temporomandibular Joint ◽  
Cone Beam Computed Tomography ◽  
Joint Effect ◽  
Field Of View ◽  
Cone Beam ◽  
Diagnostic Efficacy ◽  
Voxel Size
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