Meglioli, M.; Naveau, A.; Macaluso, G.M.; Orsi, M.; Barone, M.; Cucchi, A.; Cossellu, G.; Marchetti, C.; Masotto, N.; Panciera, A.; et al. 3D printed bone models in oral and cranio-maxillofacial surgery: A systematic review. 3D Print. Med. 2020, 6, 30. [ Google Scholar] [ CrossRef] Hay, A.J.; Smayra, T.; Moussa, R. Customized Polymethylmethacrylate Cranioplasty Implants Using 3-Dimensional Printed Polylactic Acid Molds: Technical Note with 2 Illustrative Cases. World Neurosurg. 2017, 105, 971–979.e1. [ Google Scholar] [ CrossRef] Ganau, M.; Cebula, H.; Fricia, M.; Zaed, I.; Todeschi, J.; Scibilia, A.; Gallinaro, P.; Coca, A.; Chaussemy, D.; Ollivier, I.; et al. Surgical preference regarding different materials for custom-made allograft cranioplasty in patients with calvarial defects: Results from an internal audit covering the last 20 years. J. Clin. Neurosci. 2020, 74, 98–103. [ Google Scholar] [ CrossRef] [ PubMed] Sprio S, Fricia M, Maddalena GF, Nataloni A, Tampieri A. Osteointegration in cranial bone reconstruction: a goal to achieve. J Appl Biomater Funct Mater. 2016; 14(4):e470–e476. pmid:27311430

Yu W, Lia M, Lib X. Fragmented skull modeling using heat kernels. Graphical Models. 2012; 74(4): 140–151. van der Meer WJ, Bos RR, Vissink A, Visser A. Digital planning of cranial implants. Br J Oral Maxillofac Surg. 2013; 51(5): 450–452. pmid:23266152Sampat MP, Wang Z, Markey MK, Whitman GJ, Stephens TW, Bovik AC. Measuring intra- and inter-oberserver agreement in identifying and localizing structures in medical images. IEEE International Conference on Image Processing 2006; pp. 1–4. Gilardino MS, Karunanayake M, Al-Humsi T, Izadpanah A, Al-Ajmi H, Marcoux J, et al. A comparison and cost analysis of cranioplasty techniques: autologous bone versus custom computer-generated implants. Journal of Craniofacial Surgery 2015; 1: 113–117. Across this section, we have highlighted several tools that can be used in automatic mode. We recommend using “mesh doctor” at the end of the mesh postprocessing to assess if there are artifacts in the mesh (small triangle intersections, spikes, or small holes). If the mesh has a very low number of triangles, we can use the “reintegration” tool, always setting the limits of the topology. The “uniformity” tool is useful to remove very aggressive triangles, and one has to select the aggressive prisms option with a medium number of iterations and a low effect level to remove them. With this procedure, we avoid large deviations of the mesh with the original topology. The lignite mosaic stripes alternate with bands of bright blue turquoise and the eyes are made of two orbs of polished iron pyrite framed by rings made of white conch (Strombus) shell. The nasal cavity is lined with plates of bright red Spondylus (thorny oyster) shell.

Replogle RE, Lanzino G, Francel P, Henson S, Lin K, Jane JA. Acrylic cranioplasty using miniplate struts. Neurosurgery 1996; 39(4): 747–749. pmid:8880768 This article has been supported by projects CGL2015-68300P, CGL2017-92166-EXP, UMA18-FEDERJA188, and CGL-2016-78577-P. Conflict of Interest Gerstl, J.V.E.; Rendon, L.F.; Burke, S.M.; Doucette, J.; Mekary, R.A.; Smith, T.R. Complications and cosmetic outcomes of materials used in cranioplasty following decompressive craniectomy—A systematic review, pairwise meta-analysis, and network meta-analysis. Acta Neurochir. 2022, 164, 3075–3090. [ Google Scholar] [ CrossRef] Chen X, Xu L, Yang Y, Egger J. A semi-automatic computer-aided method for surgical template design. Sci Rep. 2016; 6: 20280. pmid:26843434 The serpent is a prominent symbol of temptation and evil. But that’s not its sole representation. The emblem of a snake can signify rebirth or transformation as well.

Conflict of Interest

Skervin, A.; Levy, B. Management of Common Surgical Complications. Surgery 2023, 41, 76–80. [ Google Scholar] [ CrossRef] Several researchers have explored support structure improvement by optimal part orientation and algorithms for support structure optimization ( Jiang et al., 2018). However, the existence of support structures becomes problematic in structures with interior orifices and cavities. To overcome the problem as mentioned above, the design aspects become crucial. The generated structures are self-supporting, with surfaces having an overhang-angle smaller than a prescribed maximum overhang-angle. In our results, the quasi-self-supporting fabrication feasibility was supported by the organic Voronoi pattern prosthesis with high dimensional accuracy. The fabrication of implants without supports or a minimal number of support structures is imperative to reduce the manufacturing time, material consumption and improve the finishing processes. The analysis of the prosthesis's overall fit and congruence was assessed on a skull biomodel fabricated by BJ technology. BJ is a form of material jetting printing process and is very well-suited for anatomical biomodels requiring high accuracy ( Ziaee and Crane, 2019; Msallem et al., 2020). Furthermore, multi-color biomodels can be fabricated with ease. The process is fast and affordable as it does not need support structures ( Salmi, 2021). A person may get mirror tattoos to symbolize their inner self, beauty, and vanity. Also, people get mirror tattoos to increase confidence in their life.

Singh, D.K.; Shankar, D.; Yadav, K.; Kaif, M.; Singh, R.K. Use of a Single Standard Skull Model for Preparation of PMMA-Based Cranioplasty Flap: A Novel Low-Cost Technique. Turk. Neurosurg. 2023. [ Google Scholar] [ CrossRef]

Therefore, the use of both medical XCT and laboratory XCT is more common and easily accessible. However, the data obtained with nCT are complementary with the data obtained from XCT ( Sutton, 2008; Mays et al., 2017; Zanolli et al., 2020). This increases the analytical capacity to visualize internal structures that only with X-rays are impossible to detect. Singh, J.; Singh, R.; Singh, H. Experimental Investigations for Dimensional Accuracy and Surface Finish of Polyurethane Prototypes Fabricated by Indirect Rapid Tooling: A Case Study. Prog. Addit. Manuf. 2017, 2, 85–97. [ Google Scholar] [ CrossRef]