Comparison of 2 root surface area measurement methods: 3-dimensional laser scanning and cone-beam computed tomography

Cone Beam Computed Tomography (CBCT) is a valuable imaging technique in oral and maxillofacial surgery (OMS) that can help direct a surgeon’s approach to a variety of conditions. A 3-dimensional analysis of head and neck anatomy allows practitioners to plan appropriately, operate with confidence, and assess results post-operatively. CBCT imaging has clear indications and limitations. CBCT offers the clinician 3-dimensional and multi-planar views for a more accurate diagnosis and treatment without the financial burden and radiation exposure of conventional computed tomography (CT) scans. Furthermore, CBCT overcomes certain limitations of 2-dimensional imaging, such as distortion, magnification, and superimposition. However, CBCT lacks the detailed depiction of soft tissue conditions for evaluation of pathologic conditions, head and neck infections, and temporomandibular joint (TMJ) disc evaluation. This review evaluates the evidence-based research supporting the application of CBCT in the various fields of oral and maxillofacial surgery, including dentoalveolar surgery, dental implants, TMJ, orthognathic surgery, trauma, and pathology, and will assess the value of CBCT in pre-operative assessment, surgical planning, and post-operative analysis when applicable. Additionally, the significant limitations of CBCT and potential areas for future research will be discussed.

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Accuracy of maxillofacial prototypes fabricated by different 3-dimensional printing technologies using multi-slice and cone-beam computed tomography

Imaging Science in Dentistry ◽

10.5624/isd.20200175 ◽

2021 ◽

Vol 51 (1) ◽

pp. 41

Author(s):

Faezeh Yousefi ◽

Abbas Shokri ◽

Maryam Farhadian ◽

Fariborz Vafaei ◽

Fereshte Forutan

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

3 Dimensional ◽

Dimensional Printing

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Comparison of the Accuracy of 3-dimensional Cone-beam Computed Tomography and Micro–Computed Tomography Reconstructions by Using Different Voxel Sizes

Journal of Endodontics ◽

10.1016/j.joen.2014.04.014 ◽

2014 ◽

Vol 40 (9) ◽

pp. 1321-1326 ◽

Cited By ~ 21

Author(s):

Delphine Maret ◽

Ove A. Peters ◽

Antoine Galibourg ◽

Jean Dumoncel ◽

Rémi Esclassan ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Micro Computed Tomography ◽

3 Dimensional ◽

Dimensional Cone

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Accuracy of cone-beam computed tomography in defining spatial relationships between third molar roots and inferior alveolar nerve

European Journal of Dentistry ◽

10.4103/1305-7456.195168 ◽

2016 ◽

Vol 10 (04) ◽

pp. 454-458 ◽

Cited By ~ 3

Author(s):

Roberto Pippi ◽

Marcello Santoro ◽

Ferdinando D'Ambrosio

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Root Morphology ◽

Inferior Alveolar Nerve ◽

Third Molar ◽

Root Surface ◽

Cone Beam ◽

Spatial Relationships ◽

Third Molars ◽

The Third

ABSTRACT Objective: Cone-beam computed tomography (CBCT) has been proposed in surgical planning of lower third molar extraction. The aim of the present study was to assess the reliability of CBCT in defining third molar root morphology and its spatial relationships with the inferior alveolar nerve (IAN). Materials and Methods: Intraoperative and radiographic variables of 74 lower third molars were retrospectively analyzed. Intraoperative variables included IAN exposure, number of roots, root morphology of extracted third molars, and presence/absence of IAN impression on the root surface. Radiographic variables included presence/absence of the cortex separating IAN from the third molar roots on CBCT examination, number of roots and root morphology on both orthopantomography (OPG) and CBCT. The statistical association between variables was evaluated using the Fisher's exact test. Results: In all cases of intraoperative IAN exposure, the cortex appeared discontinuous on CBCT images. All cases, in which the cortical bone was continuous on CBCT images, showed no association with nerve exposure. In all cases in which nerve impression was identified on the root surface, the IAN cortex showed interruptions on CBCT images. No nerve impression was identified in any of the cases, in which the cortex appeared continuous on CBCT images. CBCT also highlighted accessory roots and apical anomalies/curvatures, not visible on the OPG. Conclusions: CBCT seems to provide reliable and accurate information about the third molar root morphology and its relationship with the IAN.

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