1
|
Naralan ME, Ozdogan A, Guller MT, Miloglu O. Comparison of artifact values of prosthodontic materials with 2 different cone beam computed tomography devices. J Prosthet Dent 2023:S0022-3913(23)00505-X. [PMID: 37716900 DOI: 10.1016/j.prosdent.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 09/18/2023]
Abstract
STATEMENT OF PROBLEM Prosthodontic materials may cause unexpected artifacts in cone beam computed tomography (CBCT) images, but studies quantifying these artifacts are sparse. PURPOSE The purpose of this in vitro study was to compare the artifact expression of fixed prosthodontic materials with different CBCT devices. MATERIAL AND METHODS Ten prosthodontic materials (Co-Cr-Mo alloy, interim acrylic resin, polyetheretherketone, feldspathic ceramic, lithium disilicate glass-ceramic, zirconia-reinforced lithium silicate ceramic, zircon core, and 3 monolithic zirconias) were scanned with 2 CBCT devices. The materials were placed in polymethyl methacrylate resin to simulate clinical conditions. To assess the impact of the devices on artifacts, the gray values of 8 areas in each material image were analyzed. The data were analyzed with the Kruskal-Wallis and Wilcoxon Signed-Rank tests (α=.05). RESULTS Statistically significant differences were found in the artifact expression of the materials (P<.001) and between CBCT devices (P<.001). CONCLUSIONS The artifact expression of polymeric and ceramic materials in CBCT images was less than that of other materials. The milliampere-second (mAs) value of CBCT devices had a significant impact on the artifact level.
Collapse
Affiliation(s)
- Muhammed Enes Naralan
- Assistant Professor, Department of Oral, Dental and Maxillofacial Radiology, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Alper Ozdogan
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - Mustafa Taha Guller
- Lecturer, Department of Dentistry Services, Vocational School of Health Services, Erzincan Binali Yıldırım University, Erzincan, Turkey.
| | - Ozkan Miloglu
- Professor, Department of Oral, Dental and Maxillofacial Radiology, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| |
Collapse
|
2
|
Cunningham BW, Brooks DM. Comparative Analysis of Optoelectronic Accuracy in the Laboratory Setting Versus Clinical Operative Environment: A Systematic Review. Global Spine J 2022; 12:59S-74S. [PMID: 35393881 PMCID: PMC8998481 DOI: 10.1177/21925682211035083] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
STUDY DESIGN Systematic review. OBJECTIVES The optoelectronic camera source and data interpolation process serve as the foundation for navigational integrity in robotic-assisted surgical platforms. The current systematic review serves to provide a basis for the numerical disparity observed when comparing the intrinsic accuracy of optoelectronic cameras versus accuracy in the laboratory setting and clinical operative environments. METHODS Review of the PubMed and Cochrane Library research databases was performed. The exhaustive literature compilation obtained was then vetted to reduce redundancies and categorized into topics of intrinsic accuracy, registration accuracy, musculoskeletal kinematic platforms, and clinical operative platforms. RESULTS A total of 465 references were vetted and 137 comprise the basis for the current analysis. Regardless of application, the common denominators affecting overall optoelectronic accuracy are intrinsic accuracy, registration accuracy, and application accuracy. Intrinsic accuracy equaled or was less than 0.1 mm translation and 0.1 degrees rotation per fiducial. Controlled laboratory platforms reported 0.1 to 0.5 mm translation and 0.1 to 1.0 degrees rotation per array. Accuracy in robotic-assisted spinal surgery reported 1.5 to 6.0 mm translation and 1.5 to 5.0 degrees rotation when comparing planned to final implant position. CONCLUSIONS Navigational integrity and maintenance of fidelity of optoelectronic data is the cornerstone of robotic-assisted spinal surgery. Transitioning from controlled laboratory to clinical operative environments requires an increased number of steps in the optoelectronic kinematic chain and error potential. Diligence in planning, fiducial positioning, system registration and intra-operative workflow have the potential to improve accuracy and decrease disparity between planned and final implant position.
Collapse
Affiliation(s)
- Bryan W. Cunningham
- Department of Orthopaedic Surgery, Musculoskeletal Research and Innovation Institute, MedStar Union Memorial Hospital, Baltimore, MD, USA
- Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC, USA
| | - Daina M. Brooks
- Department of Orthopaedic Surgery, Musculoskeletal Research and Innovation Institute, MedStar Union Memorial Hospital, Baltimore, MD, USA
| |
Collapse
|
3
|
Köse TE, Günaçar DN, Ateş SM, Çağlar İ. Artifact expression of polyetheretherketone in cone beam computed tomography: An in vitro study. J Prosthet Dent 2021; 126:793.e1-793.e5. [PMID: 34674841 DOI: 10.1016/j.prosdent.2021.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 10/20/2022]
Abstract
STATEMENT OF PROBLEM Dental prosthetic materials can cause artifacts in cone beam computed tomography (CBCT) images, adversely affecting diagnostic quality, although the problem may be less with polyetheretherketone (PEEK). Studies evaluating the artifacts caused by frequently used prosthetic materials are lacking. PURPOSE The purpose of this in vitro study was to compare the artifacts in CBCT images caused by PEEK, zirconia, cobalt-chromium (Co-Cr) alloy, and titanium (Ti). MATERIAL AND METHODS A polymethylmethacrylate phantom (Ø4.0×4.0 cm) with a central cylindrical aperture (Ø0.5×0.5 cm) was produced. Co-Cr, Ti, zirconia, and PEEK cylinders (0.5×0.5 cm) were manufactured, and CBCT images of the empty phantom (control group) with the test cylinders inside were made 3 times. In all images, the axial sections passing through the middle of the materials were evaluated. Eight regions of interest (ROI) area were determined around the materials (0.5×0.5 cm). The presence of artifacts was evaluated by making gray value standard deviation (SD) calculations in these ROI areas. The average SD values of 8 ROI fields from the 3 CBCT scans were made, and the materials were compared with each other in terms of the presence of artifacts by using 1-way analysis of variance (α=.05). RESULTS The difference between the SD values of the control and the PEEK cylinder was not statistically significant (P>.05). The SD values of both the control and PEEK groups were significantly lower than those of the zirconia, Co-Cr, and Ti groups (P<.05). CONCLUSIONS Zirconia, Ti, and Co-Cr caused artifacts in CBCT images, but the artifacts with PEEK were similar to those in the control group, suggesting it was the optimal choice in terms of achieving diagnostic quality.
Collapse
Affiliation(s)
- Taha Emre Köse
- Assistant Professor, Oral and Maxillofacial Radiology Department, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Dilara Nil Günaçar
- Assistant Professor, Oral and Maxillofacial Radiology Department, Faculty of Dentistry, Recep Tayyip Erdoğan University, Rize, Turkey.
| | - Sabit Melih Ateş
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - İpek Çağlar
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Recep Tayyip Erdogan University, Rize, Turkey
| |
Collapse
|
4
|
Guo Y, Tian G, Zlotolow DA, Tian W, Zhong W, Sun L. A Cadaveric Study on the Accuracy of an Individualized Guiding Template to Assist Scaphoid Fixation Using Computed Tomography and 3-Dimensional Printing. J Hand Surg Am 2019; 44:251.e1-251.e6. [PMID: 30057220 DOI: 10.1016/j.jhsa.2018.06.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 04/28/2018] [Accepted: 06/15/2018] [Indexed: 02/02/2023]
Abstract
PURPOSE The aim of this study was to evaluate the feasibility and accuracy of scaphoid screw guidewire placement using a computer-assisted-designed, and 3-dimensional-printed, surgical guiding template in cadaver wrists. METHODS Computed tomography (CT) scans of 12 fresh-frozen cadaver wrists were performed and the data imported into a surgical planning system. A 3-dimensional skin surface template block with a guiding hole was generated from the CT data to allow a screw guidewire to be placed in the central third of the scaphoid. This 3-dimensional model was printed and then put back onto the wrist. A screw guidewire was inserted through the palmar guide hole into the intact scaphoid and then a postprocedure CT scan was obtained. These postprocedure data were introduced into the surgical planning system. Angular and linear deviation between the preprocedural simulation and the image of the guidewire was measured in the system to assess accuracy. RESULTS Mean angular deviation was 3.85° ± 1.32° (range, 1.56°-5.35°) and linear deviations of the 12 specimens were less than 1.1 mm. No specimen required a repeat drilling to the scaphoid. All the screw guidewires were considered to be centrally placed in the scaphoid based on our criterion of central placement of the scaphoid screw. CONCLUSIONS The use of a computer-assisted 3-dimensional-printed surgical guide template to assist screw guidewire placement into an intact scaphoid, mimicking a nondisplaced scaphoid fracture, showed acceptable accuracy in cadaver wrists. CLINICAL RELEVANCE Our technique may provide a simple and effective method for the guidance of screw guidewire insertion in a nondisplaced scaphoid fracture surgery.
Collapse
Affiliation(s)
- Yang Guo
- Department of Hand Surgery, Beijing Jishuitan Hospital, Beijing, China
| | - Guanglei Tian
- Department of Hand Surgery, Beijing Jishuitan Hospital, Beijing, China.
| | - Dan A Zlotolow
- Temple University School of Medicine, Shriners Hospital for Children of Philadelphia, Philadelphia, PA
| | - Wen Tian
- Department of Hand Surgery, Beijing Jishuitan Hospital, Beijing, China
| | - Wenyao Zhong
- Department of Hand Surgery, Beijing Jishuitan Hospital, Beijing, China
| | - Liying Sun
- Department of Hand Surgery, Beijing Jishuitan Hospital, Beijing, China
| |
Collapse
|
5
|
Guevara-Rojas G, Figl M, Schicho K, Seemann R, Traxler H, Vacariu A, Carbon CC, Ewers R, Watzinger F. Patient-Specific Polyetheretherketone Facial Implants in a Computer-Aided Planning Workflow. J Oral Maxillofac Surg 2014; 72:1801-12. [DOI: 10.1016/j.joms.2014.02.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 02/04/2014] [Accepted: 02/09/2014] [Indexed: 11/25/2022]
|
6
|
Kang SH, Kim MK, Kim JH, Park HK, Lee SH, Park W. The Validity of Marker Registration for an Optimal Integration Method in Mandibular Navigation Surgery. J Oral Maxillofac Surg 2013; 71:366-75. [DOI: 10.1016/j.joms.2012.03.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Revised: 03/30/2012] [Accepted: 03/31/2012] [Indexed: 11/17/2022]
|
7
|
Meningaud JP, Spahn F, Donsimoni JM. [After titanium, peek ?]. ACTA ACUST UNITED AC 2012; 113:407-10. [PMID: 22940377 DOI: 10.1016/j.stomax.2011.12.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 10/16/2011] [Accepted: 12/12/2011] [Indexed: 10/28/2022]
Abstract
The PEEK-Optima(®), composite mixture of polyetheretherketon and inert materials, is used in orthopedics, spinal surgery and cranio-facial surgery. It could be used in dental implantology because of its biological and mechanical properties. The results of an experimental and finite element study made on basal implant prototypes, on basal implantology show that PEEK, contrary to titanium, has a compound structure that allows to optimize the distribution of masticatory forces around the implant. These results should be confirmed by a clinical study according to research regulation.
Collapse
Affiliation(s)
- J-P Meningaud
- Service de Chirurgie Plastique, Reconstructrice et Esthétique, Groupe Hospitalier Henri-Mondor-Albert-Chenevier, Faculté de Médecine, IFR10, Université Paris 12, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
| | | | | |
Collapse
|
8
|
O'Loughlin PF, Daentzer D, Hüfner T, Uksul N, Citak M, Haentjes J, Krettek C, Citak M. A customized modular reference array clamp for navigated spine surgery. Arch Orthop Trauma Surg 2010; 130:1475-80. [PMID: 20119711 DOI: 10.1007/s00402-010-1060-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Indexed: 02/09/2023]
Abstract
INTRODUCTION The current authors have developed a modular system of reference array fixation which is tailored specifically to the spinal level being operated upon. They believe that this system may further increase the precision and accuracy of pedicle screw placement. MATERIALS AND METHODS Two formalin-fixed whole body cadavers were used for this study. For cervical spine evaluation of the reference clamp, four odontoid screws (two per cadaver) for C1/C2-fusion and four lateral mass screws (two per cadaver) were implanted. Following navigated screw placement with 2D and 3D fluoroscopic verification, insertion of two lateral mass screws was performed. In the same way, lumbar and thoracic pedicle screws were implanted. Two pedicle screws were placed at two levels of the lumbar and two levels of the thoracic areas giving an overall of 16 screws implanted (8 cervical, 4 thoracic, and 4 lumbar). Postoperative evaluation involved comparison of postoperative 3D scans and preoperative planning images. A simple classification system was used for evaluation of any deviation from the planned trajectory. RESULTS All pedicle screw placements were performed as planned without any technical problems. The reference array clamps remained in position at all the spinal levels at which they were employed with no loosening or displacement and no secondary damage to any of the spinous processes. Manual manipulation was performed but no displacement or slippage was observed. Image artefacts caused by the reference clamp were not significant as to obscure the area of interest. Both imaging modalities (Iso-C 3D and Vario 3D) generated sufficiently precise 3D images. There was no substantial difference in quality when those two systems were compared. DISCUSSION Insufficient fixation of the reference clamp can lead to failure and complications. To date, no reference clamp systems have been developed specifically for navigated spine surgery. CONCLUSIONS Stable reference array fixation is a critical step in navigated surgery. To date, the same reference clamps have been applied to the spinal anatomy as have been developed originally for the appendicular skeleton. The current investigators have developed a novel modular clamp and have demonstrated its efficacy in a cadaveric model.
Collapse
Affiliation(s)
- Padhraig F O'Loughlin
- Department of Orthopaedic Surgery, Hospital for Special Surgery, Computer Assisted Surgery Center, 535 East 70th Street, New York, NY 10021, USA
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Citak M, O'Loughlin PF, Kendoff D, Suero EM, Gaulke R, Olivier LC, Krettek C, Hüfner T. Navigated scaphoid screw placement using customized scaphoid splint: an anatomical study. Arch Orthop Trauma Surg 2010; 130:889-95. [PMID: 20076990 DOI: 10.1007/s00402-010-1044-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2009] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Accuracy in navigated surgery depends on placement and registration of stable reference markers close to the anatomic region of interest. Navigation in small and complex anatomic regions, such as the scaphoid, is challenging due to difficulties in placing a stable reference marker. In the current paper, we describe the use of a customized wrist-positioning device "Scaph-splint" with a built-in reference marker that facilitates navigated scaphoid screw insertion in combination with a 3D imaging device. MATERIALS AND METHODS Initial cadaveric feasibility study Five fresh-frozen cadaveric upper extremity specimens were utilized. Each specimen was secured onto the "Scaph-splint" with the wrist in about 90 degrees of extension. Using a 3D fluoroscope, a series of images were taken of the carpal bones and reconstructed in axial, sagittal, and coronal planes. Navigated planning and guidance of scaphoid drilling and screw placement was performed. Next, a repeat 3D scan was taken to analyze the drill canal. The accuracy of navigated scaphoid drilling, drilling trials, and any penetration of the scaphoid outside of the planned drill trajectory were evaluated. A grading scheme was used to assess the drilling accuracy: Grade 1 <1 mm deviation, Grade 2 <2 mm deviation, Grade 3 <3 mm. RESULTS Scaphoid drilling was confirmed to be completely accurate (Grade 1) in two specimens, highly accurate (Grade 2) in two specimens, and accurate (Grade 3) in one specimen. No specimen required a repeat drilling of the scaphoid. In one specimen, the proximal scaphoid pole was perforated by the drill. No registration failures or loosening of the reference marker occurred. CONCLUSION The use of the "Scaph-splint" enabled stabilization of the hand and wrist, thus adequately fixing the reference marker in relation to scaphoid for optimal navigation and screw placement without the need to directly penetrate the scaphoid with a reference marker. The use of 3D fluoroscopy further increased the accuracy and precision of scaphoid screw placement.
Collapse
Affiliation(s)
- Musa Citak
- Trauma Department, Hannover Medical School, Germany.
| | | | | | | | | | | | | | | |
Collapse
|