scholarly journals Evaluation of 3D visualisation, planning and printing techniques in alveolar cleft repair, and their effect on patients' burden

2021 ◽  
Author(s):  
Artúr Kesztyűs ◽  
Tamás Würsching ◽  
Bálint Nemes ◽  
Laura Pálvölgyi ◽  
Krisztián Nagy
Keyword(s):  
Alveolar Cleft ◽  
3D Visualisation ◽  
Printing Techniques

Oriented Luminescent Nanostructures From Single Molecules Of Conjugated Polymers

2003 ◽  
Vol 771 ◽  
Author(s):  
Adosh Mehta ◽  
Pradeep Kumar ◽  
Jie Zheng ◽  
Robert M. Dickson ◽  
Bobby Sumpter ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Polarization Anisotropy ◽  
Emission Pattern ◽  
Spectral Signatures ◽  
Dipole Emission ◽  
Ink Jet ◽  
Molecular Scale ◽  
Jet Printing ◽  
Photochemical Stability ◽  
Printing Techniques

AbstractDipole emission pattern imaging experiments on single chains of common conjugated polymers (solubilized poly phenylene vinylenes) isolated by ink-jet printing techniques have revealed surprising uniformity in transition moment orientation perpendicular to the support substrate. In addition to uniform orientation, these species show a number of striking differences in photochemical stability, polarization anisotropy,[1] and spectral signatures[2] with respect to similar (well-studied) molecules dispersed in dilute thin-films. Combined with molecular mechanics simulation, these results point to a structural picture of a folded macromolecule as a highly ordered cylindrical nanostructure whose long-axis (approximately collinear with the conjugation axis) is oriented, by an electrostatic interaction, perpendicular to the coverglass substrate. These results suggest a number of important applications in nanoscale photonics and molecular-scale optoelectronics.

Effect of Platelet Rich Plasma (PRP) on Bone Graft in Alveolar Cleft Repair

2020 ◽  
Vol 43 (3) ◽  
pp. 417-424
Author(s):  
Omar Osman ◽  
Ibrahim Kamel ◽  
Ahmed Elshereif ◽  
Ahmed Mohamed ◽  
Amr Magdy
Keyword(s):  
Bone Graft ◽  
Platelet Rich Plasma ◽  
Alveolar Cleft

Polymer-Assisted High-Resolution Printing Techniques for Colloidal Quantum Dots

2021 ◽  
Vol 29 (6) ◽  
pp. 391-401
Author(s):  
Jiwoong Yang ◽  
Jisu Yoo ◽  
Won Seok Yu ◽  
Moon Kee Choi
Keyword(s):  
Quantum Dots ◽  
High Resolution ◽  
Colloidal Quantum Dots ◽  
Printing Techniques

scholarly journals Additive Manufacturing for Effective Smart Structures: The Idea of 6D Printing

2021 ◽  
Vol 5 (5) ◽  
pp. 119
Author(s):  
Stelios K. Georgantzinos ◽  
Georgios I. Giannopoulos ◽  
Panteleimon A. Bakalis
Keyword(s):  
Additive Manufacturing ◽  
Degrees Of Freedom ◽  
Smart Structures ◽  
Interaction Mechanism ◽  
Modeling And Simulations ◽  
Environmental Stimulus ◽  
Material Component ◽  
Design And Manufacturing ◽  
First Time ◽  
Printing Techniques

This paper aims to establish six-dimensional (6D) printing as a new branch of additive manufacturing investigating its benefits, advantages as well as possible limitations concerning the design and manufacturing of effective smart structures. The concept of 6D printing, to the authors’ best knowledge, is introduced for the first time. The new method combines the four-dimensional (4D) and five-dimensional (5D) printing techniques. This means that the printing process is going to use five degrees of freedom for creating the final object while the final produced material component will be a smart/intelligent one (i.e., will be capable of changing its shape or properties due to its interaction with an environmental stimulus). A 6D printed structure can be stronger and more effective than a corresponding 4D printed structure, can be manufactured using less material, can perform movements by being exposed to an external stimulus through an interaction mechanism, and it may learn how to reconfigure itself suitably, based on predictions via mathematical modeling and simulations.

scholarly journals Alveolar cleft and maximum cleft width as predictors for difficult laryngoscopy and intubation in patients with unilateral complete cleft lip and palate

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Gamal A. Abdelhameed ◽  
Wael A. Ghanem ◽  
Simon H. Armanios ◽  
Tamer Nabil Abdelrahman
Keyword(s):  
Body Weight ◽  
Odds Ratio ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Difficult Laryngoscopy ◽  
Secondary Outcome ◽  
Pediatric Airway ◽  
Alveolar Cleft ◽  
Cleft Lip Palate ◽  
Width Measurements

Abstract Background Cleft lip and palate is one of the commonest congenital anomalies, which have an impact on feeding, speech, and dental development away from the significant psychosocial sequel. Early surgical repair aims to restore appearance and function, and the modern techniques can leave many defects undetectable. Therefore, the anesthetic challenge facing the pediatric airway with such abnormalities is still of a great impact. The aim of our study among 189 patients enrolled is to correlate alveolar gap and maximum cleft width measurements as predictors of difficult laryngoscopy and intubation in infants with unilateral complete cleft lip/palate aging from 1 to 6 months. As a secondary outcome, their weight is to be correlated too as another parameter. Results The alveolar gap and maximum cleft width are both of equal high predictive power (p value ≤ 0.001) with 100% sensitivity for both and specificity of 76.10% and 82.39% respectively, with a cut off value of ≤ 10 mm and 11 mm for these dimensions respectively, and odds ratio of incidence of difficult intubation is 4.18 and 5.68 respectively, while body weight ≤ 5.75 kg has an odds ratio of 2.32. Conclusion Alveolar cleft and maximum cleft width can be used as predictors for anticipation of difficult laryngoscopy and intubation infant patients with unilateral complete cleft lip and palate, while body weight ≤ 5.75 kg increases the risk more than twice.

scholarly journals 3D visualisation of voids in grapevine flowers and berries using X‐ray micro computed tomography

2021 ◽  
Author(s):  
Z. Xiao ◽  
T. Stait‐Gardner ◽  
S.A. Willis ◽  
W.S. Price ◽  
F.J. Moroni ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Micro Computed Tomography ◽  
X Ray ◽  
3D Visualisation

scholarly journals 3D and 4D printing in dentistry and maxillofacial surgery: Printing techniques, materials, and applications

2020 ◽  
Author(s):  
Danial Khorsandi ◽  
Amir Fahimipour ◽  
Payam Abasian ◽  
Sepehr Sadeghpour Saber ◽  
Mahla Seyedi ◽  
...  
Keyword(s):  
Maxillofacial Surgery ◽  
4D Printing ◽  
Printing Techniques

scholarly journals “Fraudonomics”: Cartooning against Structural Adjustment in Togo

2021 ◽  
Vol 66 (S29) ◽  
pp. 139-160
Author(s):  
Robin Frisch
Keyword(s):  
Structural Adjustment ◽  
International Institutions ◽  
Authoritarian Rule ◽  
Crucial Element ◽  
The Third ◽  
Depth Analysis ◽  
Local Politicians ◽  
The Media ◽  
Repertoire Of Contention ◽  
Printing Techniques

AbstractThis article offers a sensitive reading of oppositional political cartoons in Togo in the early 1990s, during the period of structural adjustment, which was accompanied by the swift reversal of democratizing trends and the restoration of authoritarian rule. Togolese satirists perceived this moment as a moment of “fraudonomics”, thus contesting rampant corruption and clientelism in politics. They poked fun at the president, local politicians, businesspeople, and bureaucrats of the international institutions. The article begins by examining the making of satirical newspapers with a focus on the biographies of the satirists. As students, they started out on the adventure of publication with their own money and learned most of their drawing and printing techniques as work progressed. Secondly, an analysis of the readership shows that, although the satirical newspapers were a crucial element of the media in the early 1990s, it was mostly an elitist and urban phenomenon. The third section analyses the changing visual repertoire of contention through in-depth analysis of four selected caricatures.

Rehabilitation of a Patient with Cleft Lip and Palate with an Extremely Edentulous Atrophied Posterior Maxilla Using Zygomatic Implants: Case Report

2004 ◽  
Vol 41 (5) ◽  
pp. 571-574 ◽  
Author(s):  
Anh Viet Pham ◽  
Marcelo Abarca ◽  
Albert De Mey ◽  
Chantal Malevez
Keyword(s):  
Case Report ◽  
Bone Grafting ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Oral Implants ◽  
Alveolar Cleft ◽  
Dental Prostheses ◽  
Posterior Maxilla ◽  
Zygomatic Implants ◽  
Dental Rehabilitation

Objective This case report describes the clinical and surgical management of a patient with a unilateral alveolar cleft and associated extremely atrophied totally edentulous maxilla. Method Two zygomatic implants and four endosseous oral implants were placed under general anesthesia in a compromised maxilla to rehabilitate a 33-year-old patient with cleft lip and palate. The two specially designed zygomatic implants were utilized to avoid the need for bone grafting in the patient. The final prosthetic rehabilitation was an esthetic and functional maxillary overdenture prosthesis supported by implants. Results Preliminary results have shown how dental prostheses supported by endosseous implants in grafted alveolar cleft are a reliable possibility in the dental rehabilitation of this malformation. Conclusion The use of zygomatic implants may be considered a reliable alternative to more resource-demanding techniques such as bone grafting in patients with cleft palate.

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