From "Empirical Surgery" to "Precision Surgery": establishment and clinical application of precision orthognathic surgery system / 华西口腔医学杂志

Orthognathic surgery, which involve osteotomy and repositioning of the maxillomandibular complex, has recently emerged as a crucial method of correcting dentofacial deformities. The optimal placement of the maxillomandibular complex holds utmost significance during orthognathic surgery because it directly affects the surgical outcome. To accurately achieve the ideal position of the maxillomandibular complex, with the rapid advancements in digital surgery and 3D-printing technology, orthognathic surgery has entered an era of "Precision Surgery" from the pervious "Empirical Surgery." This article provides comprehensive insights into our extensive research and exploration of the treatment modality known as "precision orthognathic surgery" over the years. We also present the technical system and application in"Ortho+X" treatment modality to offer valuable references and assistance to our colleagues in the field.

Advances in titanium bone implants made by rapid prototyping technology / 中国组织工程研究

BACKGROUND:In recent years,rapid prototyping has provided new options for the manufacture of customized titanium implants.OBJECTIVE:To review the optimization of titanium bone implants made by rapid prototyping,and assess its clinical value.METHODS:A computer-based retrieval of PubMed database and CNKI was performed for relevant articles by using the keywords of rapid prototype,3D printing,additive manufacture,titanium,custom-made,implant both in English and Chinese.These articles were analyzed from two aspects:the performance optimization and the clinical application of titanium bone implants produced by rapid prototyping.RESULTS AND CONCLUSION:Rapid prototyping technology enables the production of customized bone implants,and biological properties of the implants can be varied through the introduction of porosity and Morphological changes of the implant.In combination with surface treatment technology,such as coating technique,the biological performance of the implants can be further optimized.Therefore,the rapid prototyping technology can be used to create customized titanium bone implants with excellent mechanical and biological properties.The titanium bone implants made by rapid prototyping have great prospect in the clinical practice.