Comparative Evaluation of Masticatory Efficiency and Patient Satisfaction Using Three Different Impression Techniques in Completely Edentulous Resorbed Mandibular Ridge: A Randomised Controlled Trial

Abstract

Restoration of function and comfort in completely edentulous patients with resorbed mandibular ridges remains a clinical challenge. This study evaluates the influence of three different impression techniques—conventional, cocktail, and neutral zone—on masticatory efficiency and patient satisfaction. A total of 24 edentulous patients were randomly divided into three groups (n=8 each), with each group receiving complete dentures fabricated using one of the three impression methods. All subsequent clinical steps followed a standardized protocol. Masticatory efficiency was assessed using a pre- and post-chewing gum weighing method, while patient satisfaction was measured through the OHIP-EDENT questionnaire, scored on a 5-point Likert scale. Statistical analysis revealed a significant improvement in both masticatory efficiency and satisfaction in patients treated with the neutral zone technique, followed closely by the cocktail method. The conventional technique showed comparatively lower effectiveness. Although the difference between the neutral zone and cocktail groups was not statistically significant, both outperformed the conventional approach. These findings suggest that impression technique plays a pivotal role in the functional and subjective success of complete dentures in patients with compromised ridges. Further studies with larger sample sizes are warranted to support these outcomes and refine treatment strategies.