Comparative Study between Conventional Molding and Scanning in Fixed Prosthesis: A Narrative Review

Abstract

Introduction: A common question in current dental clinical practice is regarding the choice and use of the best molding method (conventional or digital), especially considering accuracy, patient comfort, and clinical time. Despite conventional moldings being widely accepted and reliable, digital technology offers significant advances in terms of accuracy, which can directly influence the choice of the most appropriate method for each case. Aims: This study aimed to analyze the current scientific evidence and compare conventional moldings with scanning in fixed prostheses Methodology: A search was conducted in three databases: PubMed, Scopus, and Web of Science, for scientific articles in English published between 2019 and 2024, which addressed, in fixed prostheses, the comparison between conventional moldings and scanning. Results: A total of 448 articles were found; after applying the exclusion criteria, 25 articles were selected for this review. Based on the scientific evidence currently available, the conventional technique for moldings in fixed prostheses, using materials such as alginate or silicone, is largely reliable, but may present limitations in terms of accuracy and comfort. With technological advances, digital scanners have become a modern alternative, captured precise digital images of the dental arch and creating 3D models. This method offers advantages such as greater comfort for the patient, elimination of molding errors and the ability to adjust in real time. Integration with CAD/CAM software allows for detailed customization and more efficient production of prostheses Conclusion: Conventional molding is still used; scanners are emerging as an innovative and effective technology.