Clinical evaluation of direct restorations performed through the injectable composite resin technique in anterior teeth. Case report

Abstract

The injectable composite resin technique refers to a combined indirect and direct method that uses a clear silicone key to accurately and predictably transfer a diagnostic wax-up to a composite restoration, without the need to prepare the teeth. The clinical case of two female patients, aged between 30 and 40 years, is presented. The treatment plan included composite resin restorations in the anterosuperior sector. With the help of an intraoral scanner, 3D images of the dental anatomical structures were generated, from which the waxing was performed. Subsequently, a transparent silicone key was manufactured and the mock-up was verified in the oral cavity. The teeth were restored by injecting a fluid compound, which was light-polymerized through the silicone key. The selection of the resin was based on its versatility, suitable for both small and extensive restorations. This material offers the advantage of being repairable without the need to replace the entire previous restoration, making it an ideal option for direct procedures. In addition, it allows rapid hardening of the material using ultraviolet light, accelerating the process compared to other materials that require weeks of laboratory preparation. As a result, aesthetic restorations were obtained in harmony with the face, achieving diastema closure and restoring the shape and function of the teeth. In subsequent checks, no soft tissue inflammation or signs of significant wear were observed. The technique described is minimally invasive and accessible in terms of resources