Is All-on-four effective in case of partial mandibular resection? A 3D finite element study

Vangi, Dario; Gulino, Michelangelo-Santo; Branchi, Roberto; Fabio, Ferretti

doi:10.1016/j.jormas.2023.101463

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…Therefore, in future studies, we aim to use 3D printed mandibles made of a material with known properties that are comparable to real human bone instead of Synbone mandible replicas. Finally, according to the literature, FEA is a promising tool in the OMF surgery for investigating different types of fracture management and different osteosynthesis systems or implants [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]50 . This study shows that our FEA model is an applicable tool for analysing simple mandibular fracture problems; therefore, the outcome of this study is a promising step towards developing a validated FEA model suitable for many different situations (e.g., complex mandibular fractures or other bone fractures in the OMF region).…”

Section: Discussionmentioning

confidence: 99%

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Biomechanical assessment of mandibular fracture fixation using finite element analysis validated by polymeric mandible mechanical testing

Daqiq,

Roossien,

Wubs

et al. 2024

Sci Rep

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The clinical finite element analysis (FEA) application in maxillofacial surgery for mandibular fracture is limited due to the lack of a validated FEA model. Therefore, this study aims to develop a validated FEA model for mandibular fracture treatment, by assessing non-comminuted mandibular fracture fixation. FEA models were created for mandibles with single simple symphysis, parasymphysis, and angle fractures; fixated with 2.0 mm 4-hole titanium miniplates located at three different configurations with clinically known differences in stability, namely: superior border, inferior border, and two plate combinations. The FEA models were validated with series of Synbone polymeric mandible mechanical testing (PMMT) using a mechanical test bench with an identical test set-up. The first outcome was that the current understanding of stable simple mandibular fracture fixation was reproducible in both the FEA and PMMT. Optimal fracture stability was achieved with the two plate combination, followed by superior border, and then inferior border plating. Second, the FEA and the PMMT findings were consistent and comparable (a total displacement difference of 1.13 mm). In conclusion, the FEA and the PMMT outcomes were similar, and hence suitable for simple mandibular fracture treatment analyses. The FEA model can possibly be applied for non-routine complex mandibular fracture management.

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Section: Discussionmentioning

confidence: 99%

“…In recent years, there have been more FEA studies in the OMF area [14][15][16][17][18][19][20][21][22][23] However, the application of FEA in clinical cases is limited in OMF surgery due to non-availability of a validated FEA model that can be routinely applied to mandibular fracture treatment. In principle, regarding complex fractures (e.g., comminuted…”

mentioning

confidence: 99%

Biomechanical assessment of mandibular fracture fixation using finite element analysis validated by polymeric mandible mechanical testing

Daqiq,

Roossien,

Wubs

et al. 2024

Sci Rep

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“…In the resected mandible, the all-on-four configuration was biomechanically superior to parallel implants, considering the radial stresses on the implants and cortical bone. A design with four parallel implants minimizes stress on a resected jaw while, across the entire jaw, all-on-four rehabilitation is superior at all levels (bone, implant, and structure) [12].…”

Section: Major Clinical Outcomesmentioning

confidence: 99%

Major characteristics and clinical results of the all-on-four technique in implant dentistry: a systematic review

Maranini,

Souza,

Cicareli

et al. 2024

MedNEXT

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Introduction: In the context of dental implant methods, the all-on-four technique has proven to be beneficial in reducing stress around dental implants and is a very effective treatment option for edentulous patients. Objective: A systematic review was carried out to present the main characteristics and clinical results of the all-in-four technique in implant dentistry. Methods: The PRISMA Platform systematic review rules were followed. The search was carried out from October 2023 to January 2024 in the Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 82 articles were found, 40 articles were evaluated in full and 22 were included and developed in the present systematic review study. Considering the Cochrane tool for risk of bias, the overall assessment resulted in 12 studies with a high risk of bias and 10 studies that did not meet GRADE and AMSTAR-2. Most studies did not show homogeneity in their results, with X2=55.7%>50%. It was concluded that technical knowledge and anatomical understanding in all-on-four mandibular surgery are essential for predictable and consistent surgical results. The all-on-four configuration proved to be biomechanically superior to parallel implants, considering the radial stresses on the implants and cortical bone. All-on-four treatments are based on the insertion of two anterior implants and two angled ones to cover a larger area. Therefore, implant-supported prostheses may have higher success and survival rates. The cost of treatment can be reduced. Chewing stress can also be minimized to a greater extent. It was observed that the lowest stress was observed in both lateral and vertical loads in the peri-implant region

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Investigating the optimal design of all-on-four technique adopting finite element analysis: the aspect of framework material, kind and position of implants

Lanza,

De Stefano,

Ruggiero

2023

Biomedical Engineering Advances

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Is All-on-four effective in case of partial mandibular resection? A 3D finite element study

Cited by 3 publications

References 15 publications

Biomechanical assessment of mandibular fracture fixation using finite element analysis validated by polymeric mandible mechanical testing

Biomechanical assessment of mandibular fracture fixation using finite element analysis validated by polymeric mandible mechanical testing

Major characteristics and clinical results of the all-on-four technique in implant dentistry: a systematic review

Investigating the optimal design of all-on-four technique adopting finite element analysis: the aspect of framework material, kind and position of implants

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