The visibility of mandibular canal on orthoradial and oblique CBCT slices at molar implant sites

Alkhader, Mustafa; Hudieb, Malik; Jarab, Fadi; Shaweesh, Ashraf I.

doi:10.1080/13102818.2016.1166349

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…It is assumed that central or peripheral positioning of the ROI in the FOV influences the magnitude of inaccuracy in the final image. 13,14 Moreover, most CBCT software allows slices to be obtained in any orthogonal and non-orthogonal direction, which is likely to provide varying measurement results. 10 The purpose of the present study was to determine the concomitant influence of object positioning within the FOV and slice inclination on the accuracy of linear measurements obtained from CBCT images of potential implant sites.…”

Section: Introductionmentioning

confidence: 99%

Effect of slice inclination and object position within the field of view on the measurement accuracy of potential implant sites on cone-beam computed tomography

2020

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Purpose: The purpose of this study was to evaluate the accuracy of linear measurements in the horizontal and vertical dimensions based on object position and slice inclination in cone-beam computed tomography (CBCT) images. Materials and Methods: Ten dry sheep hemi-mandibles, each with 4 sites (incisor, canine, premolar, and molar), were evaluated when either centrally or peripherally positioned within the field of view (FOV) with the image slices subjected to either oblique or orthogonal inclinations. Four types of images were created of each region: central/ cross-sectional, central/coronal, peripheral/cross-sectional, and peripheral/coronal. The horizontal and vertical dimensions were measured for each region of each image type. Direct measurements of each region were obtained using a digital caliper in both horizontal and vertical dimensions. CBCT and direct measurements were compared using the Bland-Altman plot method. P values <0.05 were considered to indicate statistical significance. Results: The buccolingual dimension of the incisor and premolar areas and the height of the incisor, canine, and molar areas showed statistically significant differences on the peripheral/coronal images compared to the direct measurements (P<0.05). Molar area height in the central/coronal slices also differed significantly from the direct measurements (P<0.05). Cross-sectional images of either the central or peripheral position had no marked difference from the gold-standard values, indicating sufficient accuracy. Conclusion: Peripheral object positioning within the FOV in combination with applying an orthogonal inclination to the slices resulted in significant inaccuracies in the horizontal and vertical measurements. The most undesirable effect was observed in the molar area and the vertical dimension.

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Section: Introductionmentioning

confidence: 99%

Effect of slice inclination and object position within the field of view on the measurement accuracy of potential implant sites on cone-beam computed tomography

2020

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“…9,10 These modalities not only help to avoid superimposition and distortion errors but also allow measurements to be made in planes of space not available or accurately depicted in conventional radiographs. 11,12 They can also be used to fabricate surgical guides for accurate and guided implant placement.…”

Section: Introductionmentioning

confidence: 99%

Dental Implant

Sharif

Hussain

Aslam

et al. 2018

TPMJ

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Objectives: To measure the average bone width and bone height in the posterioredentulous spans in the mandible as well as to evaluate bone quality and anterior extensionof the Inferior alveolar nerve to assess possibility for dental implant placement. Study Design:Cross-sectional study. Setting: Armed Forces Institute of Dentistry, Rawalpindi – Pakistan.Period: July 2017 to Oct 2017. Method: Bone height, width and anterior extension of inferioralveolar nerve was assessed using CBCT images from the hospital database. Bone quality wascategorized as hard, moderately hard or soft based on clinician’s tactile sensations. Results:Average bone width of 6.12 ±1.51 mm and average bone height of 13.56 ± 2.43 mm wasfound among the study subjects. “Soft” bone quality was found most prevalent in the posteriormandible. Anterior extension of the Inferior alveolar nerve was visible in 14% of subjects only.Conclusion: Variations in the bone width, height and density endorse the importance of a sitespecificbone tissue evaluation prior to implant installation.

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A CBCT based cross sectional study on the prevalence and anatomical feature of C shaped molar among Jordanian

Omari

Alkhader

Ateş

et al. 2022

Sci Rep

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The prevalence and anatomical features of C-Shaped Mandibular Second Molars (MSMs) are rarely studied in Jordanian sub-population. This study then took a part to evaluate the prevalence of C-shaped in MSMs using cone-beam computed tomography (CBCT) in the Jordanian sub-population. It used a cross-sectional design and three thousand scans collected over eight years between 2011 and 2019. The data were then reviewed for whether they were fully formed of MSMs. A total of 2037 cases that had 2845 MSMs were evaluated to identify C-shaped canals at coronal, middle, and apical sites. An oblique slicing module perpendicular to the long axis of MSMs was used to evaluate the teeth. The type and frequency of C-shaped canals, as well as the correlations between sex and side (right/left) and between sex and groove direction (buccal/lingual) were measured using the chi-square test on SPSS software at the significance level of 95%. A total of 342 teeth of 243 patients were C-shaped molars, which comprised 12% of the patient’s teeth and 99 of them as a bilateral C-shaped canal with mean age of 40 years and sex ratio of 2:1 between female and male. With the limitations of this study, the lingual groove and type 3 were the most common properties of MSM. Besides, the Jordanian population mostly had C-shaped canals.

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The visibility of mandibular canal on orthoradial and oblique CBCT slices at molar implant sites

Cited by 4 publications

References 18 publications

Effect of slice inclination and object position within the field of view on the measurement accuracy of potential implant sites on cone-beam computed tomography

Effect of slice inclination and object position within the field of view on the measurement accuracy of potential implant sites on cone-beam computed tomography

Dental Implant

A CBCT based cross sectional study on the prevalence and anatomical feature of C shaped molar among Jordanian

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