Biomechanical analysis of All-on-4 implant supported framework using different materials across various clinical practice

• DOI: 10.1186/s12903-025-05928-0
• Publication Date: 2025-04-12T07:36:26Z
• Authors: Xiaoxuan Chen; Zhengyi Xu; Kuo Gai; Xibo Pei; Ruyi Li; Qianbing Wan
• Keywords: Clinical Practice

With the global aging trend, number of edentulous individuals is steadily increasing. All-on-4 implant restoration can greatly recovery masticatory function in patients. This study aims to determine effect framework material and cantilever length on stress distribution components using three-dimensional finite element analysis, thereby providing clinicians with insights into design superstructures improve patient outcomes. Five models lengths 0 mm, 3 6 9 12 mm were established, selected as either titanium (Ti) or polyetheretherketone (PEEK). The jawbone, implant, then assembled, four implants placed jawbone according classic connected via abutments. Finally, occlusal forces applied framework. Finite analysis was used obtain strain jawbones, well within frameworks. Overall, use a PEEK demonstrated better due its elastic modulus, maximum which 26% lower at most than Ti. Although frameworks showed overall, increased, particularly for over reaching values up 2.6 times higher titanium. Cantilever are interrelated factors that both influence system. A serve an alternative short (under mm), offering slightly mandibular protection. Titanium preferable between reduce mechanical risk. exceeding discouraged increased stress. Not Applicable.