Evolution of the Guided Direct Composite Resin Technique in Restorative Dentistry: A Systematic Review.

Objective: This systematic review aims to understand the limitations and benefits of the guided direct restorative technique, to optimize the final outcomes, considering the evolution from analog to digital, including planning, the diversification of guides, and the different resins employed.

Methodology: A search was conducted in the electronic databases PubMed, Cochrane, and through manual searches, initiated in May 2023 and updated in April 2024. The following search strategy was used: ((injectable composite resin) OR (direct pressed composite)) OR (3D-guided), utilizing the PICO framework.

Results: Initially, 739 articles were retrieved. After applying inclusion and exclusion criteria, 33 studies were considered suitable for data extraction, including 12 in vitro studies and 21 case reports or technique descriptions. The articles focused on comparisons of techniques, flowable, heated, and conventional resins, as well as various technique reports with variations in guides, materials, and planning, potentially aiding clinicians in more effective and safer execution of this restorative technique.

Conclusion: The utilization of digital workflows presents greater solutions to the challenges of the guided direct restorative technique. Understanding the properties of the resins used is crucial for the results and should be chosen according to the patient's needs.

Clinical significance: A guided direct restorative procedure can deliver previously planned dental treatment based on individualized planning. This method ensures greater reproducibility in aesthetics and occlusion, resulting in superior quality work for the patient.