Tooth loss in the mandible and maxilla has a significant impact on chewing patterns. Full-arch implant restorations with fixed prostheses using the ‘All-on-4’ technique aim to restore chewing ability in patients. This study assessed the maximum occlusal bite force in patients with fixed or removable dentures. The aim was to compare these findings in dentate patients and patients with complete dentures.
The study involved five groups of patients. These consisted of patients with ‘All-on-4’ implant bridges in one jaw, in both jaws, implant overdentures, complete dentures and fully dentate patients. A custom-made device was used to measure the bite force in Newtons (N). The results were then compared between the groups.
Interestingly the group with the highest bite force was those with ‘All-on-4’implant bridges in both jaws (mean bite force 283.1 ± 142.1 N). This was even higher than that of dentate patients (mean bite force 199.2 ± 97.0 N). The other three groups all showed similar results to each other, with complete dentures showing the lowest mean bite force (83.5 ± 48.0 N).
These results suggest that patients with fixed full-arch implant bridges using the ‘All-on-4’ technique can show bite forces similar to or exceeding that of dentate patients.
This study was presented as an e-poster at the 2018 EAO Congress.