Objective To explore the accuracy of pure titanium and cobalt-chromium alloy frameworks fabricated with the additive production (have always been) of selective laser melting technology (SLM) for the mandibular implant-supported fixed prostheses together with maxillary removable limited denture (RPD), and also to offer a reference for medical application of SLM pure titanium frameworks. Techniques One edentulous mandibular design with implants and screw fixed abutments at bilateral canines in addition to very first molars had been selected and used whilst the mandibular full arch implant-supported model. In addition, a Kennedy class Ⅰ maxillary dentition problem model had been selected. The digital early medical intervention designs had been acquired by checking the dental models, together with material frameworks associated with mandibular full arch implant-supported denture therefore the maxillary RPD (design model) were designed using the 3 Shape software. Meanwhile, 12 mandibular frameworks within the cobalt-chromium alloy in addition to pure titanium (6 in each group were treated with heat application treatment, while thegy exhibited better fitness and trueness than did the Co-Cr frameworks after heat-treatment correspondingly, and also this satisfied the demands of implant-supported fixed prostheses and RPD significant steel frameworks.Objective To investigate the influence of digital light processing (DLP) and computer numerical controlmilling (CNC) regarding the technical behavior of zirconia. Practices Prepared DLP samples (experimental group, n=52) and CNC samples (control group, n=52) with 12 examples in each group were randomly selected utilizing random number dining table to measure thickness, grain size and crystal stage structure. Based on the different practices fracture toughness test, the samples were split into indentation method group (IM) and single-edge-V-notch-beam group (SEVNB), with 30 DLP and 30 CNC samples in IM group, 10 DLP and 10 CNC samples in SEVNB team. The IM group had been tested under three various lots (49.03 N, 98.07 N, 196.10 N), there were 10 samples for every learn more load and each test was tested at 15 things, plus the load using the ratio of break length to indentation diagonal size higher than 2.5 ended up being chosen due to the fact indentation load to determine its IM fracture toughness. At exactly the same time, the SEVNB group ended up being tested with fourhness of DLP zirconia were (6.111±0.179) MPa·m1/2 and (7.221±0.809) MPa·m1/2, correspondingly. The IM and SEVNB break toughness of CNC zirconia were (6.126±0.383) MPa·m1/2 and (7.408±0.533) MPa·m1/2, correspondingly. Conclusions The microstructure of DLP and CNC zirconia is nearly the exact same, and there is small difference between the fracture toughness of zirconia between two handling technologies.Objective To reconstruct zygomatico-orbtial and maxillary bone tissue flaws using three-dimensional (3D) printing technology, in order to provide the basis for complicated maxillofacial bone flaws. Methods Five customers clinically determined to have in zygomatico-orbtial and maxillary neoplasm in division of Oral and Maxillofacial Surgical treatment, General Hospital of Chinese PLA, who require bone defect reconstruction after surgery. Two different customized prosthesis were fabricated by computer system assisted design and 3D publishing techonology, therefore the length of orbital flooring extension into the customized prosthesis were various Design 1, 9-10 mm orbital floor extension; Design 2, 10-15 mm orbital floor extension. The medical outcome were evaluated during operation and matching condition of two different designed prosthesis had been done after checking for evaluation. Results the outcomes suggested that the deviation worth were 2-3 mm located at fixed construction during clinical hepatic sinusoidal obstruction syndrome evaluaton, as well as the deviation worth were about 1 mm after prosthesis checking. Eventually, prothesis of Design 1 were requested medical use, and satisfactory repair contour ended up being achieved in all clients. Conclusions The results claim that zygomatico-orbtial and maxillary bone problems reconstruction can be carried out with satisfactory impact using 3D publishing technology, and design and fabrication factors should really be taken into consideration in difficult framework design with multi-protuberance.Objective To present the look, make and medical application for the custom-made temporomandibular combined (TMJ)-skull base combined prosthesis and evaluate its safety, effectiveness and accuracy. Practices The clients identified as having the TMJ-skull base lesion in Department of Oral Surgical treatment, Shanghai Ninth men and women’s Hospital from October 2016 to November 2020 were recruited in this study. The maxillofacial CT information for all the patients had been gotten and transformed into the Mimics 18.0 pc software preoperatively. The custom-made TMJ-skull base combined prosthesis, included four components, ended up being created in line with the structure, stress circulation and motion for the TMJ and skull base, and fabricated by three-dimensional printing and 5-axis milling technologies. The TMJ-skull base lesion had been excised entirely by using electronic themes from modified preauricular and/or post and submandibular incisions. The combined prosthesis were implanted and fixed after the lesion resection. The examinations includinustom-made TMJ-skull base combined prosthesis with customized design and 3D printing fabrication is safe, efficient and precise in clinical application.The fix of osteochondral harm is medically challenging. There are restrictions in the current technologies for osteochondral fix and regeneration, and it is however difficult for the strategies for osteochondral muscle engineering to obtain enduring and effective results.