PDF(Pubmed)
Abstract：
4D printing is an innovative digital manufacturing technology that originated by adding a fourth dimension, i.e., time, to pre-existing 3D technology or additive manufacturing (AM). AM is a fast-growing technology used in many fields, which develops accurate 3D objects based on models designed by computers. Dentistry is one such field in which 3D technology is used for manufacturing objects in periodontics (scaffolds, local drug-delivering agents, augmentation of ridges), implants, prosthodontics (partial and complete dentures, obturators), oral surgery for reconstructing jaw, and orthodontics. Dynamism is a vital property needed for the survival of materials used in the oral cavity since the oral cavity is constantly subjected to various insults. 4D printing technology has overcome the disadvantages of 3D printing technology, i.e., it cannot create dynamic objects. Therefore, constant knowledge of 4D technology is required. 3D printing technology has shortcomings, which are discussed in this review. This review summaries various printing technologies, materials used, stimuli, and potential applications of 4D technology in dentistry.
摘要：
4D打印是一种创新的数字制造技术，起源于增加第四个维度，即，时间,现有的3D技术或增材制造(AM)。AM是一种在许多领域中使用的快速增长的技术，它基于计算机设计的模型开发精确的3D对象。牙科是一个这样的领域，其中3D技术用于制造牙周病中的物体（支架，当地的药物输送剂，增加山脊)，植入物,口腔修复术(部分和完整义齿，闭塞器)，重建颌骨的口腔手术，和正畸。动态性是口腔中使用的材料的生存所需的重要性质,因为口腔不断受到各种损伤。4D打印技术克服了3D打印技术的缺点，即，它不能创建动态对象。因此,需要不断的4D技术知识。3D打印技术有缺点，这在这篇综述中进行了讨论。这篇综述总结了各种印刷技术，使用的材料,刺激,以及4D技术在牙科中的潜在应用。
