Maxillary Sinus Augmentation without Grafting Material with Simultaneous Implant Installation: A Three‐Dimensional Finite Element Analysis

Yan, Xu; Zhang, Xinwen; Gao, Jie; Matsushita, Yasuyuki; Koyano, Kiyoshi; Jiang, Xi; Ai, Hongjun

doi:10.1111/cid.12254

Cited by 9 publications

(7 citation statements)

References 42 publications

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“…Inadequate alveolar bone is a common limitation for inserting dental implants in the posterior maxilla 1 2 . Clinical and animal studies have shown that successful bone augmentation can be achieved by simply elevating the maxillary sinus membrane (MSM), with or without any bone grafting 3 4 5 . On the other hand, case reports have described spontaneous bone formation on the maxillary sinus floor following cyst and tooth removal 6 7 .…”

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confidence: 99%

Investigation of multipotent postnatal stem cells from human maxillary sinus membrane

Guo

Weng

Rong

et al. 2015

Sci Rep

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Maxillary sinus membrane (MSM) elevation is a common surgical technique for increasing bone height in the posterior maxilla prior to dental implant placement. However, the biological nature of bone regeneration in MSM remains largely unidentified. In this study, MSM tissue was obtained from 16 individuals during orthognathic surgery and used to isolate MSM stem cells (MSMSCs) by single-colony selection and STRO-1 cell sorting. The cell characteristics in terms of colony-forming ability, cell surface antigens, multi-differentiation potential and in vivo implantation were all evaluated. It was found that MSMSCs were of mesenchymal origin and positive for mesenchymal stem cell (MSC) markers such as STRO-1, CD146, CD29 and CD44; furthermore, under defined culture conditions, MSMSCs were able to form mineral deposits and differentiate into adipocytes and chondrocytes. When transplanted into immunocompromised rodents, MSMSCs showed the capacity to generate bone-like tissue and, importantly, maintain their MSC characteristics after in vivo implantation. These findings provide cellular and molecular evidence that MSM contains stem cells that show functional potential in bone regeneration for dental implant.

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confidence: 99%

Investigation of multipotent postnatal stem cells from human maxillary sinus membrane

Guo

Weng

Rong

et al. 2015

Sci Rep

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“…Finite element analysis (FEA) is widely used in various fields of dentistry owing to its high efficiency and low cost (Boschian et al 2006, Abu et al 2011, Yan et al 2015. In the present study, a FEA approach was used to simulate different frequencies and amplitudes of ultrasound, and assess the stress on cements and roots.…”

Section: Introductionmentioning

confidence: 99%

Influence of post‐core material and cement peculiarities on stress of post‐cores under ultrasonic vibration: a three‐dimensional finite element analysis

et al. 2020

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Aim To analyse the effect of post-core and cement materials and thickness of the cement lute on the stress in post-core systems under ultrasonic vibration at different frequencies and amplitudes using three-dimensional finite element analysis. Methodology Eight three-dimensional finite element models of a maxillary central incisor with postcores were established. Two post-core materials (Au and Ni-Cr alloys), two cements (glass ionomer (GI) and zinc phosphate (ZP)) and two cement layer thicknesses (50 and 150 lm) were considered. Vibration loads were applied near the neck on the buccal side of the core at frequencies of 10-40 kHz and amplitudes of 10-50 lm. The maximum shear stress of the cement layer and maximum principal stress of the roots and their distributions were investigated. Results The stresses on cements and roots increased with an increase in the frequency and amplitude of the vibration load and elastic modulus of the cements, and decreased with increasing thickness of the cement layer and elastic modulus of the post-core. Maximum cement stress was observed on the contralateral upper part of the loading side, whereas the maximum root stress was found on the ferrule where the load was applied. Conclusions In this simulated model, the frequency and amplitude of ultrasound needed to remove a post-core were positively related to the elastic modulus of the post-core and thickness of the cement layer and negatively related to the elastic modulus of the cements.

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“…At present, the three-dimensional finite element (3-D FE) analysis has been widely used to study the mechanical behavior of implant-related structures and surrounding bone tissue. With the recent advances in this technology, it is possible to simulate complex structures on a microscopic scale to observe further stress distribution that is clinically impossible to observe, to analyze the relevant stresses in the internal structure of the model, and to assess the associated risks [ 17 – 19 ]. The problem of choosing sinus augmentation approaches based on actual bone quality and residual bone volume is of great importance in dental implantation.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method

et al. 2020

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This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant combined with two types of maxillary sinus augmentation methods was applied with the RBH, which was less than 10 mm in the maxilla. The maximal equivalent von Mises (EQV) stress in residual bone was evaluated. Bone quality had an enormous impact on the stress magnitude of supporting bone. Applying sinus augmentation combined with grafts was suitable for stress distribution, and high-stiffness graft performed better than low-stiffness one. For 7 mm and 5 mm atrophic maxilla, nongrafted maxillary sinus augmentation was feasible in D3 bone. Poor bone quality was a negative factor for the implant in the region of atrophic posterior maxilla, which could be improved by grafts. Meanwhile, the choice of maxillary sinus augmentation approaches should be determined by the RBH and quality.

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Maxillary Sinus Augmentation without Grafting Material with Simultaneous Implant Installation: A Three‐Dimensional Finite Element Analysis

Cited by 9 publications

References 42 publications

Investigation of multipotent postnatal stem cells from human maxillary sinus membrane

Investigation of multipotent postnatal stem cells from human maxillary sinus membrane

Influence of post‐core material and cement peculiarities on stress of post‐cores under ultrasonic vibration: a three‐dimensional finite element analysis

Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method

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