scholarly journals The accuracy of linear measurements of maxillary and mandibular edentulous sites in cone-beam computed tomography images with different fields of view and voxel sizes under simulated clinical conditions

2016 ◽  
Vol 46 (2) ◽  
pp. 93 ◽  
Author(s):  
Rumpa Ganguly ◽  
Aruna Ramesh ◽  
Sarah Pagni
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Linear Measurements ◽  
Computed Tomography Images ◽  
Clinical Conditions

scholarly journals Accuracy of linear measurements obtained from stitched cone beam computed tomography images versus direct skull measurements

F1000Research ◽  
2020 ◽  
Vol 8 ◽  
pp. 166 ◽  
Author(s):  
Doaa Ahmed Fouad Hamed ◽  
Mostafa Mohamed El Dawlatly ◽  
Sahar Hosny El Dessouky ◽  
Reham Mohamed Hamdy
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Reference Points ◽  
Cone Beam ◽  
Linear Measurements ◽  
Gutta Percha ◽  
Computed Tomography Images ◽  
Lateral Plane ◽  
Skull Measurements ◽  
Human Skulls

Background: To assess whether the linear measurements obtained from stitched cone beam computed tomography (CBCT) images were as accurate as the direct skull measurements. Methods: Nine dry human skulls were marked with gutta-percha at reference points to obtain Twenty-two linear measurements on each skull. Ten measurements in the cranio-caudal plane, two measurements in the antero-posterior plane, and ten measurements in the medio-lateral plane. CBCT linear measurements obtained using stitching software were measured and compared with direct skull measurements. Results: The absolute Dahlberg error between direct linear measurements and linear measurements on stitched CBCT images ranged from (0.07 mm to 0.41 mm). The relative Dahlberg error ranged from (0.2% to 1.8%). Moreover, Intra-class Correlation Coefficient (ICC) ranged from (0.97 to 1.0) indicating excellent agreement. Conclusion: Stitched CBCT linear measurements were highly comparable to the direct skull measurements using a digital caliper.

Accuracy of Linear Measurements and Visibility of the Mandibular Canal of Cone-Beam Computed Tomography Images With Different Voxel Sizes: An In Vitro Study

2013 ◽  
Vol 84 (1) ◽  
pp. 68-77 ◽  
Author(s):  
Karen Borges Waltrick ◽  
Murillo José Nunes de Abreu Junior ◽  
Márcio Corrêa ◽  
Michella Dinah Zastrow ◽  
Vinícius D’Avila Dutra
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
In Vitro Study ◽  
Mandibular Canal ◽  
Vitro Study ◽  
Cone Beam ◽  
Linear Measurements ◽  
Computed Tomography Images

scholarly journals Accuracy of linear measurements obtained from stitched cone beam computed tomography images versus direct skull measurements

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 166
Author(s):  
Doaa Ahmed Fouad Hamed ◽  
Reham Mohamed Hamdy ◽  
Sahar Hosny El Dessouky
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Reference Points ◽  
Cone Beam ◽  
Linear Measurements ◽  
Gutta Percha ◽  
Computed Tomography Images ◽  
Lateral Plane ◽  
Skull Measurements ◽  
Human Skulls

Background: To assess whether the linear measurements obtained from stitched cone beam computed tomography (CBCT) images were as accurate as the direct skull measurements. Methods: Nine dry human skulls were marked with gutta-percha at reference points to obtain Twenty-two linear measurements on each skull. Ten measurements in the cranio-caudal plane, two measurements in the antero-posterior plane, and ten measurements in the medio-lateral plane. CBCT linear measurements obtained using stitching software were measured and compared with direct skull measurements. Results: The absolute Dahlberg error between direct linear measurements and linear measurements on stitched CBCT images ranged from (0.07 mm to 0.41 mm). The relative Dahlberg error ranged from (0.2% to 1.8%). Moreover, Intra-class Correlation Coefficient (ICC) ranged from (0.97 to 1.0) indicating excellent agreement. Conclusion: Stitched CBCT linear measurements were highly comparable to the direct skull measurements using a digital caliper.

scholarly journals Temporomandibular Joint Osseous Morphology of Class I and Class II Malocclusions in the Normal Skeletal Pattern: A Cone-Beam Computed Tomography Study

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 541
Author(s):  
Xiao-Chuan Fan ◽  
Lin-Sha Ma ◽  
Li Chen ◽  
Diwakar Singh ◽  
Xiaohui Rausch-Fan ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Cone Beam Computed Tomography ◽  
Class Ii ◽  
Class I ◽  
Cone Beam ◽  
Glenoid Fossa ◽  
Linear Measurements ◽  
Significant Difference ◽  
Skeletal Pattern

(1) Background—The aim of the present study was to evaluate the correlation between the temporomandibular joint (TMJ) osseous morphology of normal skeletal pattern individuals with different dental malocclusions by using cone-beam computed tomography (CBCT). (2) Methods—The CBCT images of bilateral TMJs in 67 subjects with skeletal class I and average mandibular angle (26 males and 41 females, age range 20–49 years) were evaluated in this study. The subjects were divided into class I, class II division 1, and class II division 2 according to the molar relationship and retroclination of the maxillary incisors. Angular and linear measurements of TMJ were evaluated and the differences between the groups were statistically analyzed. (3) Results—Intragroup comparisons showed statistical differences for articular eminence inclination, the width of the glenoid fossa, the ratio of the width of the glenoid fossa to the depth of the glenoid fossa, the condylar angle, and the intercondylar angle between the malocclusion groups. The measurements of the glenoid fossa shape showed no significant difference between the left and right sides. Females showed more differences in the morphological parameters of TMJ between the three malocclusion groups than the males. (4) Conclusion—The present study revealed differences in the TMJ osseous morphology between dental class I and class II malocclusions in the normal skeletal pattern.

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