OWN - KVM - Der Medizinverlag CI - Copyright KVM - Der Medizinverlag OCI - Copyright KVM - Der Medizinverlag TA - Int J Oral Maxillofac Implants JT - The International Journal of Oral & Maxillofacial Implants IS - 1942-4434 (Electronic) IS - 0882-2786 (Print) IP - 5 VI - 37 PST - ppublish DP - 2022 PG - 971-981 LA - en TI - Evaluation of Stress and Fatigue on Different Implant Lengths in the Rehabilitation of Atrophic Mandibles with Full-Arch Fixed Prosthesis Using Finite Element Method LID - 10.11607/jomi.9514 [doi] FAU - de Oliveira Melo, Jéssyca Maria França AU - de Oliveira Melo J FAU - Willmersdorf, Ramiro Brito AU - Willmersdorf R FAU - de Siqueira Lages, Athos AU - de Siqueira Lages A FAU - Fernandes, Andre Vajgel AU - Fernandes A FAU - de Amorim, Fernanda Benevides Viana AU - de Amorim F FAU - de Carvalho Farias Vajgel, Bruna AU - de Carvalho Farias Vajgel B CN - OT - biomechanics OT - complete denture OT - dental implants OT - finite element analysis AB - Purpose: This research aimed to evaluate the stress and fatigue generated in short implants compared to regular implants in rehabilitation with fixed full-arch implant-supported prostheses in atrophic mandibles using the finite element method (FEM). Materials and Methods: Four models were constructed with different implants lengths: 4, 6, 8, and 10 mm. A 100-N oblique load was applied to evaluate the stress on the bone, implant, and prosthetic components. Results: Similar behavior was observed for all groups, except for 4 mm, which showed more discrepant values. During the fatigue test, all the groups exhibited infinite lives except G4. Conclusion: Based on the similarity of all the models, it is suggested that all short implants investigated are seemingly viable alternatives for the rehabilitation of atrophic mandibles. However, the 6-mm-long and 8-mm-long implants evinced more favorable mechanical behavior than the 4-mm-long type. AID - 3500887