3D Boolean operations in virtual surgical planning

Charton, Jérôme; Laurentjoye, M.; Kim, Young‐Jun

doi:10.1007/s11548-017-1637-y

Cited by 3 publications

(4 citation statements)

References 24 publications

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“…Only a few authors have reported on comparable digital matching approaches to evaluate bone grafting procedures [37][38][39]. Surface matching and Boolean subtraction, as performed in this study, are known to be a reliable technique of high precision in craniofacial surgical planning [18,40]. Hence, future clinical studies could profit from this technique as it could provide additional information and more accurate data.…”

Section: Discussionmentioning

confidence: 97%

“…Cone beam computed tomography (CBCT) has become routine in digital radiographic diagnostics and is recommended as routine prior to treatment involving dental implants and bone augmentation procedures [16]. In a staged approach, CBCT scans are used prior to bone augmentation to evaluate the anatomy of the defect, including the adjacent anatomical structures and after healing of the site, in order to plan for the ideal implant position [17,18]. Hence, CBCT scans routinely taken during treatment provide an option to evaluate the amount of bone that has been augmented.…”

Section: Introductionmentioning

confidence: 99%

“…The demonstrated technique is widely used in other areas of medical digital imaging and is called a "Boolean operation". Boolean operations in computer-aided design or computer graphics are a set of operations (e.g., intersection, union, and subtraction) between two objects (e.g., a patient model and an implant model) that are important for performing accurate and reproducible virtual surgical planning [18].…”

Section: Introductionmentioning

confidence: 99%

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Digital Evaluation of Vertical Ridge Augmentation with the Modified Shell Technique Using a Xenogeneic Bone Lamina: A Case Series

Happe,

Blender,

Luthardt

et al. 2023

JCM

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Vertical ridge augmentation is a demanding and technique-sensitive surgical procedure. In the present case series, cone beam CT (CBCT) scans from the clinical routine of patients treated using a novel approach for vertical bone augmentation were assessed. All patients showed a single-tooth class 5 defect and were treated using a modification of the original shell technique. Cortical bone plates were replaced with a lamina composed of a partially demineralized porcine xenograft. CBCT scans of six consecutive patients were treated with the lamina and particulate bone from the mandibular ramus prior to a single tooth implant in the anterior maxilla were included. Pre- and postsurgical CBCT data sets were superimposed and analyzed digitally using surface matching and Boolean subtraction. The volume of the grafted area was calculated with and without the xenograft. The vertical gain of the ridge height measured in this case series varied from 7 to 11.3 mm. The mean vertical gain was 8.97 mm. The mean volume including the xenograft was 382.59 mm3 (SD 73.39) and 250.84 mm3 (SD 53.67) without the lamina. The modified shell technique used in this case series for the vertical augmentation of single-tooth class 5 defects provided sufficient bone for single implant restorations.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Digital Evaluation of Vertical Ridge Augmentation with the Modified Shell Technique Using a Xenogeneic Bone Lamina: A Case Series

Happe,

Blender,

Luthardt

et al. 2023

JCM

View full text Add to dashboard Cite

show abstract

“…This includes 3D surgical simulations and designs of cutting guides and plates pre-formed to the desired postoperative position. Occlusal splints may be virtually constructed through a simple Boolean operation (Charton et al, 2017), whereby the incisal and cuspal regions of the upper and lower dentition are removed from a virtual blank splint.…”

Section: D-vsp Protocol For Orthognathic Surgerymentioning

confidence: 99%

Three-dimensional virtual surgical planning (3D-VSP) in orthognathic surgery: Advantages, disadvantages and pitfalls

2020

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In this article, the advantages, disadvantages and pitfalls of three-dimensional virtual surgical planning (3D-VSP) compared to traditional two-dimensional (2D) planning methods in orthognathic surgery are discussed, alongside a standardised protocol that can be utilised. A skeletal Class II, skeletal Class III and an anterior open bite clinical case along with their 3D-VSP management are presented, highlighting modifications that can be made to computer-aided design/computer-aided manufacture (CAD/CAM) cutting guide and plate designs.

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Improving Cranial Vault Remodeling for Unilateral Coronal Craniosynostosis—Introducing Automated Surgical Planning

Robertson

Boulanger

Kwan

et al. 2023

Craniomaxillofacial Trauma & Reconstruction

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Study Design Cranial vault remodeling (CVR) for unicoronal synostosis is challenging due to the asymmetric nature of the deformity. Computer-automated surgical planning has demonstrated success in reducing the subjectivity of decision making in CVR in symmetric subtypes. This proof of concept study presents a novel method using Boolean functions and image registration to automatically suggest surgical steps in asymmetric craniosynostosis. Objective The objective of this study is to introduce automated surgical planning into a CVR virtual workflow for an asymmetric craniosynostosis subtype. Methods Virtual workflows were developed using Geomagic Freeform Plus software. Hausdorff distances and color maps were used to compare reconstruction models to the preoperative model and a control skull. Reconstruction models were rated as high or low performing based on similarity to the normal skull and the amount of advancement of the frontal bone (FB) and supra-orbital bar (SOB). Fifteen partially and fully automated workflow iterations were carried out. Results FB and SOB advancement ranged from 3.08 to 10.48 mm, and −1.75 to 7.78 mm, respectively. Regarding distance from a normal skull, models ranged from .85 to 5.49 mm at the FB and 5.40 to 10.84 mm at the SOB. An advancement of 8.43 mm at the FB and 7.73 mm at the SOB was achieved in the highest performing model, and it differed to a comparative normal skull by .02 mm at the FB and .48 mm at the SOB. Conclusions This is the first known attempt at developing an automated virtual surgical workflow for CVR in asymmetric craniosynostosis. Key regions of interest were outlined using Boolean operations, and surgical steps were suggested using image registration. These techniques improved post-operative skull morphology

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3D Boolean operations in virtual surgical planning

Abstract: The proposed method of Boolean operations, BORES, is efficient and appropriate for virtual surgical planning. Moreover, it is simple and easy to implement. In future work, we will extend the proposed method to handle non-colliding components.

Cited by 3 publications

References 24 publications

Digital Evaluation of Vertical Ridge Augmentation with the Modified Shell Technique Using a Xenogeneic Bone Lamina: A Case Series

Digital Evaluation of Vertical Ridge Augmentation with the Modified Shell Technique Using a Xenogeneic Bone Lamina: A Case Series

Three-dimensional virtual surgical planning (3D-VSP) in orthognathic surgery: Advantages, disadvantages and pitfalls

Improving Cranial Vault Remodeling for Unilateral Coronal Craniosynostosis—Introducing Automated Surgical Planning

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