TY  - JOUR
AU  - Janović, Aleksa
AU  - Saveljić, Igor
AU  - Vukicević, Arso M.
AU  - Nikolić, Dalibor
AU  - Rakočević, Zoran
AU  - Jovicić, Gordana
AU  - Filipović, Nenad
AU  - Đurić, Marija
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2050
AB  - Understanding of the occlusal load distribution through the mid-facial skeleton in natural dentition is essential because alterations in magnitude and/or direction of occlusal forces may cause remarkable changes in cortical and trabecular bone structure. Previous analyses by strain gauge technique, photoelastic and, more recently, finite element (FE) methods provided no direct evidence for occlusal load distribution through the cortical and trabecular bone compartments individually. Therefore, we developed an improved three-dimensional FE model of the human skull in order to clarify the distribution of occlusal forces through the cortical and trabecular bone during habitual masticatory activities. Particular focus was placed on the load transfer through the anterior and posterior maxilla. The results were presented in von Mises stress (VMS) and the maximum principal stress, and compared to the reported FE and strain gauge data. Our qualitative stress analysis indicates that occlusal forces distribute through the mid-facial skeleton along five vertical and two horizontal buttresses. We demonstrated that cortical bone has a priority in the transfer of occlusal load in the anterior maxilla, whereas both cortical and trabecular bone in the posterior maxilla are equally involved in performing this task Observed site dependence of the occlusal load distribution may help clinicians in creating strategies for implantology and orthodontic treatments. Additionally, the magnitude of VMS in our model was significantly lower in comparison to previous FE models composed only of cortical bone. This finding suggests that both cortical and trabecular bone should be modeled whenever stress will be quantitatively analyzed.
PB  - Elsevier Gmbh, Munich
T2  - Annals of Anatomy - Anatomischer Anzeiger
T1  - Occlusal load distribution through the cortical and trabecular bone of the human mid-facial skeleton in natural dentition: A three-dimensional finite element study
VL  - 197
SP  - 16
EP  - 23
DO  - 10.1016/j.aanat.2014.09.002
ER  - 

@article{
author = "Janović, Aleksa and Saveljić, Igor and Vukicević, Arso M. and Nikolić, Dalibor and Rakočević, Zoran and Jovicić, Gordana and Filipović, Nenad and Đurić, Marija",
year = "2015",
abstract = "Understanding of the occlusal load distribution through the mid-facial skeleton in natural dentition is essential because alterations in magnitude and/or direction of occlusal forces may cause remarkable changes in cortical and trabecular bone structure. Previous analyses by strain gauge technique, photoelastic and, more recently, finite element (FE) methods provided no direct evidence for occlusal load distribution through the cortical and trabecular bone compartments individually. Therefore, we developed an improved three-dimensional FE model of the human skull in order to clarify the distribution of occlusal forces through the cortical and trabecular bone during habitual masticatory activities. Particular focus was placed on the load transfer through the anterior and posterior maxilla. The results were presented in von Mises stress (VMS) and the maximum principal stress, and compared to the reported FE and strain gauge data. Our qualitative stress analysis indicates that occlusal forces distribute through the mid-facial skeleton along five vertical and two horizontal buttresses. We demonstrated that cortical bone has a priority in the transfer of occlusal load in the anterior maxilla, whereas both cortical and trabecular bone in the posterior maxilla are equally involved in performing this task Observed site dependence of the occlusal load distribution may help clinicians in creating strategies for implantology and orthodontic treatments. Additionally, the magnitude of VMS in our model was significantly lower in comparison to previous FE models composed only of cortical bone. This finding suggests that both cortical and trabecular bone should be modeled whenever stress will be quantitatively analyzed.",
publisher = "Elsevier Gmbh, Munich",
journal = "Annals of Anatomy - Anatomischer Anzeiger",
title = "Occlusal load distribution through the cortical and trabecular bone of the human mid-facial skeleton in natural dentition: A three-dimensional finite element study",
volume = "197",
pages = "16-23",
doi = "10.1016/j.aanat.2014.09.002"
}

Janović, A., Saveljić, I., Vukicević, A. M., Nikolić, D., Rakočević, Z., Jovicić, G., Filipović, N.,& Đurić, M.. (2015). Occlusal load distribution through the cortical and trabecular bone of the human mid-facial skeleton in natural dentition: A three-dimensional finite element study. in Annals of Anatomy - Anatomischer Anzeiger
Elsevier Gmbh, Munich., 197, 16-23.
https://doi.org/10.1016/j.aanat.2014.09.002

Janović A, Saveljić I, Vukicević AM, Nikolić D, Rakočević Z, Jovicić G, Filipović N, Đurić M. Occlusal load distribution through the cortical and trabecular bone of the human mid-facial skeleton in natural dentition: A three-dimensional finite element study. in Annals of Anatomy - Anatomischer Anzeiger. 2015;197:16-23.
doi:10.1016/j.aanat.2014.09.002 .

Janović, Aleksa, Saveljić, Igor, Vukicević, Arso M., Nikolić, Dalibor, Rakočević, Zoran, Jovicić, Gordana, Filipović, Nenad, Đurić, Marija, "Occlusal load distribution through the cortical and trabecular bone of the human mid-facial skeleton in natural dentition: A three-dimensional finite element study" in Annals of Anatomy - Anatomischer Anzeiger, 197 (2015):16-23,
https://doi.org/10.1016/j.aanat.2014.09.002 . .

TY  - JOUR
AU  - Janović, Aleksa
AU  - Milovanović, Petar
AU  - Saveljić, Igor
AU  - Nikolić, Dalibor
AU  - Hahn, Michael
AU  - Rakočević, Zoran
AU  - Filipović, Nenad
AU  - Amling, Michael
AU  - Busse, Bjoern
AU  - Đurić, Marija
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1881
AB  - Although the concept of the occlusal load transfer through the facial skeleton along the buttresses has been extensively studied, there has been no study to link microarchitecture of the mid-facial bones to the occlusal load distribution. The aim of this study was to analyze micro-structural properties of the mid-facial bones in relation to occlusal stress. The study was performed by combining the three-dimensional finite element analysis (3D FEA) and micro-computed tomography analysis (micro-CT). Clenching was simulated on the computer model of the adult male human skull which was also used as a source of bone specimens. After the PEA was run, stress was measured at the specific sites in cortical shell and trabecular bone of the model along and between the buttresses. From the corresponding sites on the skull, twenty-five cortical and thirteen cancellous bone specimens were harvested. The specimens were classified into high stress or low stress group based on the stress levels measured via the FEA. Micro-architecture of each specimen was assessed by micro-CT. In the high stress group, cortical bone showed a tendency toward greater thickness and density, lower porosity, and greater pore separation. Stress-related differences in microstructure between the groups were more pronounced in trabecular bone, which showed significantly greater bone volume fraction (BV/TV) and trabecular thickness (Tb.Th) in the high stress group. Our results suggest that the mid-facial bones in the adult dentate male skull exhibit regional variations in cortical and trabecular bone micro-architecture that could be a consequence of different occlusal
PB  - Elsevier Science Inc, New York
T2  - Bone
T1  - Microstructural properties of the mid-facial bones in relation to the distribution of occlusal loading
VL  - 68
SP  - 108
EP  - 114
DO  - 10.1016/j.bone.2014.07.032
ER  - 

@article{
author = "Janović, Aleksa and Milovanović, Petar and Saveljić, Igor and Nikolić, Dalibor and Hahn, Michael and Rakočević, Zoran and Filipović, Nenad and Amling, Michael and Busse, Bjoern and Đurić, Marija",
year = "2014",
abstract = "Although the concept of the occlusal load transfer through the facial skeleton along the buttresses has been extensively studied, there has been no study to link microarchitecture of the mid-facial bones to the occlusal load distribution. The aim of this study was to analyze micro-structural properties of the mid-facial bones in relation to occlusal stress. The study was performed by combining the three-dimensional finite element analysis (3D FEA) and micro-computed tomography analysis (micro-CT). Clenching was simulated on the computer model of the adult male human skull which was also used as a source of bone specimens. After the PEA was run, stress was measured at the specific sites in cortical shell and trabecular bone of the model along and between the buttresses. From the corresponding sites on the skull, twenty-five cortical and thirteen cancellous bone specimens were harvested. The specimens were classified into high stress or low stress group based on the stress levels measured via the FEA. Micro-architecture of each specimen was assessed by micro-CT. In the high stress group, cortical bone showed a tendency toward greater thickness and density, lower porosity, and greater pore separation. Stress-related differences in microstructure between the groups were more pronounced in trabecular bone, which showed significantly greater bone volume fraction (BV/TV) and trabecular thickness (Tb.Th) in the high stress group. Our results suggest that the mid-facial bones in the adult dentate male skull exhibit regional variations in cortical and trabecular bone micro-architecture that could be a consequence of different occlusal",
publisher = "Elsevier Science Inc, New York",
journal = "Bone",
title = "Microstructural properties of the mid-facial bones in relation to the distribution of occlusal loading",
volume = "68",
pages = "108-114",
doi = "10.1016/j.bone.2014.07.032"
}

Janović, A., Milovanović, P., Saveljić, I., Nikolić, D., Hahn, M., Rakočević, Z., Filipović, N., Amling, M., Busse, B.,& Đurić, M.. (2014). Microstructural properties of the mid-facial bones in relation to the distribution of occlusal loading. in Bone
Elsevier Science Inc, New York., 68, 108-114.
https://doi.org/10.1016/j.bone.2014.07.032

Janović A, Milovanović P, Saveljić I, Nikolić D, Hahn M, Rakočević Z, Filipović N, Amling M, Busse B, Đurić M. Microstructural properties of the mid-facial bones in relation to the distribution of occlusal loading. in Bone. 2014;68:108-114.
doi:10.1016/j.bone.2014.07.032 .

Janović, Aleksa, Milovanović, Petar, Saveljić, Igor, Nikolić, Dalibor, Hahn, Michael, Rakočević, Zoran, Filipović, Nenad, Amling, Michael, Busse, Bjoern, Đurić, Marija, "Microstructural properties of the mid-facial bones in relation to the distribution of occlusal loading" in Bone, 68 (2014):108-114,
https://doi.org/10.1016/j.bone.2014.07.032 . .