Effects of computer aided design and manufacture for reconstruction of mandibular defect with vascu-laried iliac crest flap graft / 中华医学美学美容杂志

Objective To evaluate the clinical application and effect of computerized digital sur -gical assisted design and manufacture for reconstruction of mandibular defect with vascularied iliac crest flap graft .Methods CT was used to scan the craniofacial and maxillofacial region of mandibular ameloblastoma patient ,and then the 3D model of the maxillofacial skeleton was reconstructed using the computerized digital surgical aid design to simulate the focal resection and the mandibular defect reconstruction with the iliac crest flap .Surgical guides were prepared by 3D printing to assist focal re-section and bone reshaping .Postoperatively ,clinical and CT examinations were performed to observe the restoration of the patient's facial appearance and occlusal relationship ,as well as wound healing and graft survival .Results Postoperative review results showed that the bone graft survived well ,and the anastomosed bone was formed .The wound in the surgery area healed .No recurrence of the tumor was found after clinical and CT examination .The maxillofacial appearance was well restored ,and the re-sidual occlusal relationship recovered well .Conclusions The use of computerized digital surgical aided design combined with 3D printing technology can effectively simplify the mandibular segmental defect repair and reconstruction and optimize the postoperative repair effect .

The clinical application of digital implant guides / 口腔疾病防治

@#With the development of implant technology, digital implant surgical guides have been used for precise implant position, angulation and depths of insertion, bringing great advantages such as shortening the operation time, reducing the risk of surgery, flapless implantation. Meanwhile, the disadvantages can't be neglected such as complicated production process, high cost, low precision etc. This article focuses on production, classification and accuracy of the digital implant surgical guide technology.

Computer Aided Design and Manufacture of Transfemoral Prosthesis / 中国康复理论与实践

@#ObjectiveTo study a fast and feasible system in clinical application of computer aided socket design and manufacture. MethodsThe biomechanical index were compared of traditional hand-made prosthetic sockets and of computer aided design and manufacture ones based on 3D scanning and reverse engineering. ResultsThe index from 3 cases wearing the computer aided design and manufacture socket prostheses appeared similar or better in static mechanical parameters, walking kinetic parameters and stump-socket interface pressure than they wearing traditional hand-made ones. ConclusionThis computer aided socket design and manufacture system can meet patients' needs in using their prostheses.

Evaluation in Prostheses' Performance Using Biomechanical Method (review) / 中国康复理论与实践

@# The gradually developing study methods included the application of socket-limb interface stress test, socket computer aided design and manufacture, finite element method, the building of prosthesis 3D-rigid body kinetic model, gait analysis, and the footplate force system.