Improving retention of mandibular complete dentures through soft liner border molding and digital fabrication

Mandibular complete dentures frequently present challenges related to retention and stability associated with anatomic and functional constraints. Traditional impression techniques often involve multiple steps and materials that can lead to dimensional inaccuracies and patient discomfort. This clinical report introduces a simplified dual-stage digital mandibular scanning technique using a soft liner for border molding combined with a digital workflow. By integrating digital scanning and computer-aided design and computer-aided manufacturing (CAD-CAM) technologies, this method enhances the accuracy of denture base adaptation, reduces processing distortions, and improves overall patient satisfaction. The clinical application demonstrated significant improvements in retention, as evidenced by a retention force of 5.0 N measured with a dynamometer, highlighting the efficacy of this approach.