Comparing the influence of crestal cortical bone and sinus floor cortical bone in posterior maxilla bi-cortical dental implantation: A three-dimensional finite element analysis

Yan, Xu; Zhang, Xinwen; Chi, Weichao; Ai, Hongjun; Wu, Lin

doi:10.3109/00016357.2014.967718

Cited by 13 publications

(14 citation statements)

References 29 publications

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“…Yan ve ark. 16 yapmış oldukları sonlu elemanlar analizi çalışmasında ogmentasyon yapılmış maksiller sinüse yerleştirilen implantların primer stabilitesinin bikortikal temasta arttığını rapor etmişlerdir. Aynı çalışmada krestal kortikal kemik kalınlığının ve sinüs tabanı kortikasyonu derecesinin implantın üzeri-ne gelen stres dağılımlarını ve implant stabilizasyonunu etkilediğini götermişlerdir 15 .…”

Section: Discussionunclassified

Assessment of Classification, Prevalance and Comparison with Antral Pathology of Sinus Floor Cortication by Using Cone Beam Computed Tomography

Demiralp¹,

Şahın²,

Çakmak³

et al. 2017

Kafkas J Med Sci

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Section: Discussionunclassified

Assessment of Classification, Prevalance and Comparison with Antral Pathology of Sinus Floor Cortication by Using Cone Beam Computed Tomography

Demiralp¹,

Şahın²,

Çakmak³

et al. 2017

Kafkas J Med Sci

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“…Complex patient-specific 3D FE models with a large number of nodes are not necessary to assess implants in the distal region of the maxilla. Simple models with fewer nodes can be analyzed and compared easily with the same outcome as anatomical models [6].…”

Section: Discussionmentioning

confidence: 99%

“…The method involves a two-step procedure: The first is augmentation while the second is the insertion of the implants after four months [5]. The procedure provides double anchorage of the implants in crestal bone and the cortical bone graft block [6,7], thus ensuring ideal stabilization and fixation of the implants and better integration of the implants into bone. It also minimizes loss rates during post-surgical implant healing.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Finite Element Analysis of Maxillary Sinus Floor Augmentation with Optimal Positioning of a Bone Graft Block

et al. 2018

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Purpose: the aim of the computational 3D-finite element study is to evaluate the influence of an augmented sinus lift with additional inserted bone grafting. The bone graft block stabilizes the implant in conjunction with conventional bone augmentation. Two finite element models were applied: the real geometry based bone models and the simplified geometry models. The bone graft block was placed in three different positions. The implants were loaded first with an axial force and then with forces simulating laterotrusion and protrusion. This study examines whether the calculated stress behavior is symmetrical for both models. Having established a symmetry between the primary axis, the laterotrusion and protrusion behavior reduces calculation efforts, by simplifying the model. Material and Methods: a simplified U-shaped 3D finite element model of the molar region of the upper jaw and a more complex anatomical model of the left maxilla with less cortical bone were created. The bone graft block was placed in the maxillary sinus. Then the von Mises stress distribution was calculated and analyzed at three block positions: at contact with the sinus floor, in the middle of the implant helix and in the upper third of the implant. The two finite element models were then compared to simplify the modelling. Results: the position of the bone graft block significantly influences the magnitude of stress distribution. A bone graft block positioned in the upper third or middle of the implant reduces the quantity of stress compared to the reference model without a bone graft block. The low bone graft block position is clearly associated with lower stress distribution in compact bone. We registered no significant differences in stress in compact bone with regard to laterotrusion or protrusion. Conclusions: maximum values of von Mises stresses in compact bone can be reduced significantly by using a bone graft block. The reduction of stress is nearly the same for positions in the upper third and the middle of the implant. It is much more pronounced when the bone graft block is in the lower third of the implant near the sinus floor, which appeared to be the best position in the present study.

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“…Simple models with fewer nodes can be analyzed and compared easily with the same outcome as anatomical models [6]. …”

Section: Discussionmentioning

confidence: 99%

“…The procedure provides double anchorage of the implants in crestal bone and the cortical bone graft block [6,7], thus ensuring ideal stabilization and fixation of the implants and better integration of the implants into bone. It also minimizes loss rates during post-surgical implant healing.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Finite Element Analysis of Maxillary Sinus Floor Augmentation with Optimal Positioning of a Bone Graft Block

Schuller‐Götzburg¹,

Forte²,

Pomwenger³

et al. 2018

Preprint

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2 AbstractPurpose: The aim of the present experimental 3D-finite element study was to evaluate the influence of an augmented sinus lift with an additional inserted bone graft block. The bone graft block stabilizes the implant in addition to conventional augmented bone. We placed the block in three different positions. The implants were loaded with axial force and forces secondary to laterotrusion and protrusion. Material and Methods:A simplified U-shaped 3D finite element model of the upper jaw and a more complex anatomical model of the left maxilla were created. The bone graft block was placed in three positions: in the lower third in contact with the sinus floor, the middle, and the upper third of the implant. Van Mises' stress distribution was calculated and analyzed for the different models. We also compared the complex anatomical model with the simplified one. Results:The position of the bone graft block significantly influences the magnitude of stress distribution. A bone graft block positioned in the upper third or middle of the implant reduces the quantity of stress compared to the reference model without a bone graft block. The low bone graft block position is clearly associated with lower stress distribution in compact bone.We registered no significant differences in stress in compact bone with regard to laterotrusion or protrusion. Conclusions:Maximum values of von Mises stresses in compact bone can be reduced significantly by using a bone graft block. The reduction of stress is nearly the same for positions in the upper third and the middle of the implant. It is much more pronounced when the bone graft block is in the lower third of the implant near the sinus floor, which appeared to be the best position in the present study.

show abstract

Comparing the influence of crestal cortical bone and sinus floor cortical bone in posterior maxilla bi-cortical dental implantation: A three-dimensional finite element analysis

Cited by 13 publications

References 29 publications

Assessment of Classification, Prevalance and Comparison with Antral Pathology of Sinus Floor Cortication by Using Cone Beam Computed Tomography

Assessment of Classification, Prevalance and Comparison with Antral Pathology of Sinus Floor Cortication by Using Cone Beam Computed Tomography

Three-Dimensional Finite Element Analysis of Maxillary Sinus Floor Augmentation with Optimal Positioning of a Bone Graft Block

Three-Dimensional Finite Element Analysis of Maxillary Sinus Floor Augmentation with Optimal Positioning of a Bone Graft Block

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