Evaluation of Stress and Fatigue on Different Implant Lengths in the Rehabilitation of Atrophic Mandibles with Full-Arch Fixed Prosthesis Using Finite Element Method.
| Autor: | de Oliveira Melo JMF, Willmersdorf RB, de Siqueira Lages A, Fernandes AV, de Amorim FBV, de Carvalho Farias Vajgel B |
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| Jazyk: | angličtina |
| Zdroj: | The International journal of oral & maxillofacial implants [Int J Oral Maxillofac Implants] 2022 Sep-Oct; Vol. 37 (5), pp. 971-981. |
| DOI: | 10.11607/jomi.9514 |
| Abstrakt: | 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. |
| Databáze: | MEDLINE |
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