Int J Esthet Dent. 2021 Aug 17;16(3):280-299.
The injectable composite resin technique is a minimally invasive and purely additive procedure that uses a transparent silicone index and flowable composite resin to translate the restorative plan from the wax-up to the final restoration. Its minimally invasive nature means that it can preserve tooth structure as it may not require hard tissue reduction. It is also an indirect/direct molding technique that allows the clinician to perform a direct restoration based on a proper analysis and planning. This case report describes a simple case of reshaping the maxillary lateral incisor and maxillary first premolar of a 25-year-old female patient to close the buccal corridor and restore smile symmetry. Digital planning was used to make a biocopy of the contralateral incisor to mimic the restoration. A printed model was prepared based on the design of the digital wax-up, followed by an analog protocol. Shade selection was challenging due to the high translucency of the incisal edges. This article is a step-by-step description of the injectable composite resin technique. It also compares this technique with other treatment options such as ceramic veneers, prefabricated composite veneers, different molding techniques, and freehand bonding. The significant advantages of the injectable composite resin technique include its predictability, repeatability, simplicity, minimal invasiveness, and financial affordability for patients. Recent studies demonstrate significant improvements in physical, mechanical, and optical properties of specific flowable composite resins, which reinforces the justification for implementing them in different restorative procedures.
注射型复合树脂技术是一种微创、纯加法的操作程序，使用透明硅橡胶指示物和可流动复合树脂，将修复计划从蜡型转移到最终修复体。它的微创性质意味着它可以保留牙齿结构，因为它可能不需要减少硬组织。它也是一种间接/直接成型技术，允许临床医生根据适当的分析和计划进行直接修复。本病例报告描述了一位 25 岁女性患者上颌侧切牙和上颌第一前磨牙的简单重塑病例，以关闭颊侧间隙并恢复微笑对称性。数字化规划用于制作对侧切牙的生物拷贝，以模拟修复体。根据数字蜡型设计准备了打印模型，然后采用模拟方案。由于切缘的高半透明性，选色具有挑战性。本文详细描述了注射型复合树脂技术。还将其与其他治疗方案进行了比较，如陶瓷贴面、预制复合贴面、不同的成型技术和徒手粘接。注射型复合树脂技术的显著优势包括其可预测性、可重复性、简单性、微创性和对患者的经济可承受性。最近的研究表明，特定可流动复合树脂的物理、机械和光学性能有了显著提高，这为在不同的修复程序中应用它们提供了理由。
