Stress distribution in mandibular donor site after harvesting bone grafts of various sizes from the ascending ramus of a dentate mandible by finite element analysis

Möhlhenrich, Stephan Christian; Kniha, Kristian; Szalma, József; Ayoub, N.; Hölzle, Frank; Wolf, Michael; Modabber, Ali; Raith, Stefan

doi:10.1007/s00784-018-2671-z

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…More specifically, with the aid of FEM it has been possible to resolve physical problems and, in the context which concerns us here, to determine the biomechanical behaviour of systems of interest [20]. In the field of oral surgery it has been extensively applied in the study of the biomechanical behaviour of implant-supported prosthetics in the jaw bone, as well as in the distribution of transferred stress on the supporting bone and adjacent structures [21]; despite this, we have found no study which analyses the behaviour of soft tissue during its healing phase, let alone when the jaw bones are subject to bone regeneration. In this regard, after going through existing scientific literature we have found no evidence of the biomechanical behaviour shown by the gum under the stress of regeneration with cortical bone blocks.…”

Section: Introductionmentioning

confidence: 99%

A Biomechanical Analysis of the Influence of the Morfology of the Bone Blocks Grafts on the Transfer of Tension or Load to the Soft Tissue by Means of the Finite Elements Method

et al. 2022

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Edentulism produces resorption of alveolar bone processes, which can complicate placement of dental implants. Guided bone regeneration techniques aim to recover the volume of bone. These treatments are susceptible to the surgical technique employed, the design of the autologous block or the tension of the suture. These factors can relate to major complications as the lack of primary closure and dehiscence. The present study, using finite element analysis, aimed to determine differences in terms of displacement of the oral mucosa, transferred stress according to Von Mises and deformation of soft tissue when two block graft designs (right-angled and rounded) and two levels of suture tension (0.05 and 0.2 N) were combined. The results showed that all the variables analyzed were greater with 0.2 N. Regarding the design of the block, no difference was found in the transferred stress and deformation of the soft tissue. However, displacement was related to a tendency to dehiscence (25% greater in the right-angled/chamfer design). In conclusion different biomechanical behavior was observed in the block graft depending on the design and suture tension, so it is recommended to use low suture tension and rounded design. A novel finite element analysis model is presented for future investigations.

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Section: Introductionmentioning

confidence: 99%

A Biomechanical Analysis of the Influence of the Morfology of the Bone Blocks Grafts on the Transfer of Tension or Load to the Soft Tissue by Means of the Finite Elements Method

et al. 2022

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Twenty-four months in vivo wear of enamel antagonists to lithium disilicate implant crowns – a pilot study

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Raith

Reich

2022

Journal of Dentistry

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Combined Genioplasty and External Oblique Line Grafting: An Innovative Method to Improve Lower Facial Contour

Zang,

Tang,

Yin

2024

Journal of Craniofacial Surgery

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Background: Microgenia and the accompanying plump cheeks or hamster-like facial contour are all unattractive appearances among the Asian. Genioplasty with autogenous bone grafting is one of the effective ways to improve microgenia, in which a suitable donor area with less additional damage, lower infection rate, and more excellent effect is crucial. Methods: Patients who had undergone genioplasty and autogenous external oblique line grafting (G-EOL) were followed up. The operation-related complications, preoperative, and long-term follow-up 3-dimensional spiral computed tomography (3D-CT) were collected and analyzed. Results: Eight female patients who had received G-EOL and received 1 to 3 years of follow-up were included in this study. There were no short-term or long-term complications. CT data of bone of 8 patients and CT data of soft tissue of 6 patients at the preoperative and long term were compared. Through comparing CT data, the width at the level of the intersection of EOL and mandibular body, and the protrusion of the bony chin had improved significantly; the P values were all <0.001. Through measuring the soft tissue and analyzing the data, the ratio of lower and middle facial width, and the distance from the lower lip to Ricketts’ line were all improved, with the P values 0.042 and 0.001, respectively. Conclusions: For patients with microgenia and hamster-like facial contour, the combination of genioplasty and autogenous external oblique line grafting is innovative and effective in improving both the front and side contour of the lower face simultaneously, with excellent stability, bone healing, and low complication rates.

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Stress distribution in mandibular donor site after harvesting bone grafts of various sizes from the ascending ramus of a dentate mandible by finite element analysis

Cited by 3 publications

References 28 publications

A Biomechanical Analysis of the Influence of the Morfology of the Bone Blocks Grafts on the Transfer of Tension or Load to the Soft Tissue by Means of the Finite Elements Method

A Biomechanical Analysis of the Influence of the Morfology of the Bone Blocks Grafts on the Transfer of Tension or Load to the Soft Tissue by Means of the Finite Elements Method

Twenty-four months in vivo wear of enamel antagonists to lithium disilicate implant crowns – a pilot study

Combined Genioplasty and External Oblique Line Grafting: An Innovative Method to Improve Lower Facial Contour

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