Biomechanical evaluation of the consolidation period of alveolar distraction osteogenesis with three-dimensional finite element analysis

Veziroglu, Firdevs; Yılmaz, Derviş

doi:10.1016/j.ijom.2007.12.011

Cited by 13 publications

(11 citation statements)

References 21 publications

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“…A ratio of 1:3.5:7 was found for horizontal, vertical and oblique loads during chewing by Koolstar [11]. Accordingly, the 30 N horizontal load, 105 N vertical load and 210 N oblique load were applied on the lingual cusp of left maxillary first molar, respectively, similar to Veziroglu's studies [12].…”

Section: F Boundary Conditions Materials Properties and Loading Condsupporting

confidence: 69%

Numerical Simulation of Functional Evaluation for Implant-Supported Complete Maxillary Denture with an Efficient CT Image Segmentation and Mesh Creation Technique

Gong

Ding

2010

2010 4th International Conference on Bioinformatics and Biomedical Engineering

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Objective: This study aims to create twelve numerical models of implant-supported attachment-retained complete maxillary dentures by an efficient CT image segmentation and mesh creation technique, as well as evaluate mechanical characteristics of Model 1. Methods: Masks were first created after identifying regions of interest on CT scan images of maxillary prosthesis, then integrated with CAD models of implant, and finally meshed by extended volumetric marching cubes (EVoMaC) approach. Von Mises stress of edentulous maxilla restored with six anterior implants and resilient attachments placed distal to canines (Model 1) were determined under oblique, vertical and horizontal forces, respectively. Results: Twelve complete maxillary denture meshed models were successfully developed, which could be imported directly into the finite element package and analyzed without any manual correction. As to Model 1, maximum von Mises stress values of peri-implant bone were observed on the mesial cervical area around loaded side canine implant under different loads. Furthermore, there were no significant differences between maximum stress values of loaded side canine implant and those of central incisor implant, both of which were more than those of lateral incisor implant under all loads. Conclusion: The pioneering image segmentation and mesh development approach used in current study is an effective and successful technique in numerical simulation of functional evaluation for dental prosthesis design optimization, and can be applicable to visualization and simulation of other human bones and prostheses with complex internal architectures. In addition, simulated results imply that bone quality before healing and bone loss after treatment in canine region are of particular importance to the long-term success of Model 1.

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Section: F Boundary Conditions Materials Properties and Loading Condsupporting

confidence: 69%

Numerical Simulation of Functional Evaluation for Implant-Supported Complete Maxillary Denture with an Efficient CT Image Segmentation and Mesh Creation Technique

Gong

Ding

2010

2010 4th International Conference on Bioinformatics and Biomedical Engineering

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“…It has been suggested that ADO may be more prone to minor complications than the inlay procedure and should not be the first choice of treatment for correcting the height of vertical alveolar bone (28). During activation, the apparatus may cause discomfort to the patient (29), or break and jeopardise implant placement (30). Also, like all distraction operations, ADO is time‐consuming for the patients as well as for the dental surgeons.…”

Section: Discussionmentioning

confidence: 99%

“…Several studies on the suitability of DI and bone healing process after distraction have been already published. Veziroglu and Yilmaz (29) studied the necessary minimum consolidation period for implant insertion and found that the data from 16th week were optimal, but values obtained at 8th week were sufficient. Feichtinger et al.…”

Section: Discussionmentioning

confidence: 99%

Selection of the distraction implant length with improved biomechanical properties by three-dimensional finite element analysis

Gao

Hou³

et al. 2010

Journal of Oral Rehabilitation

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In this study, the distraction length of distraction implant was set as input variable which ranged from 2 to 10 mm. The effect of distraction length on the maximum Von Mises stress in the jaw bones and the implant were evaluated by a finite element method. The results showed that under axial load, the maximum equivalent stresses in cortical bone, cancellous bone, and distraction screw decreased by 5·8%, 8·6%, and 11·0%, respectively, with the changing of distraction length, and under buccolingual load those decreased by 0·3%, 18·0%, and 13·0%, respectively. The data indicate that cancellous bone is more sensitive to distraction length than the cortical bone. Under both loads, the central distraction screw was subjected to the stress concentration and more easily damaged by buccolingual force than by axial force. Distraction implant with distraction length exceeding 8 mm showed relatively better biomechanical behaviour.

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“…The input data used in this study, including the properties of all elements used in the computational model, were based on the literature [18][19][20] and on actual laboratory data obtained from measurements of sheep subjected to DO, and are listed in Table 1. According to Nagasao et al, 21 the masticatory force generated in the molar region ranges from 75 to 300 N. The horizontal (30 N), vertical (105 N) and oblique (210 N) masticatory loads used by Veziroglu and Yilmaz 20 in their study were the same that were applied on the implant crown in the simulation performed in this study. Loads were exerted separately in these three directions, on 10 points over the surface of the implant crown.…”

Section: Construction Of Finite Elementsmentioning

confidence: 99%

“…For measurement of these stresses and displacements in the present simulation, the masticatory forces generated at a molar were used as the load for simulation, as described in the literature by many authors, such as Nagasao et al 21 and Veziroglu and Yilmaz. 20 To Mehra and Figueroa, 1 DO is a surgical technique that takes advantage of the body's own repair mechanisms for reconstruction of soft tissue and bone. In this study, mandibles were elongated by 15 mm, and neoformed bone was subjected to nanohardness testing after only 30, 20, and 13 days of consolidation.…”

Section: Finite Element Analysis In Distraction Osteogenesis 431 Discmentioning

confidence: 99%

Finite Element Analysis of Masticatory Stress on Neoformed Bone Tissue After Distraction Osteogenesis and Low-Level Laser Therapy: A Pilot Study

Luiz

Biasotto

Velho

et al. 2014

Photomedicine and Laser Surgery

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Objective: This study aimed to understand the action of masticatory forces on an implant virtually introduced into the sheep mandible after distraction osteogenesis and low-level laser therapy (LLLT) by using finite element analysis. Background data: Distraction osteogenesis as an alternative for bone reconstruction that may be used in the treatment of deformities. Methods: Four ewes underwent distraction osteogenis to elongate the left mandibular body by 15 m, and three of them underwent LLLT with the purpose of improving bone properties. After death, animals were scanned by computed tomography and their mandibles were tridimensionally reconstructed by computer programs. The physical properties related to hardness and modulus of elasticity of each animal were obtained from the dissected mandibles, and data were transferred to Femap software for finite element analysis. Results: Animals exposed and not exposed to LLLT irradiation showed remarkably similar values for superficial hardness and modulus of elasticity, without statistically significant difference ( p > 0.05), between the values observed for the cortical bone and the cancellous bone among the groups. The neoformed mandible, after a brief period for bone healing, was able to promote stability for implant placement and proper distribution of masticatory forces. Conclusions: An implant introduced virtually into the site of bone neoformation did not suffer any micromotions relevant to osteointegration. Furthermore, finite element analysis showed that the neoformed portion of the mandible was able to absorb and distribute masticatory forces throughout its structure, even after a brief period for bone maturation.

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Biomechanical evaluation of the consolidation period of alveolar distraction osteogenesis with three-dimensional finite element analysis

Cited by 13 publications

References 21 publications

Numerical Simulation of Functional Evaluation for Implant-Supported Complete Maxillary Denture with an Efficient CT Image Segmentation and Mesh Creation Technique

Numerical Simulation of Functional Evaluation for Implant-Supported Complete Maxillary Denture with an Efficient CT Image Segmentation and Mesh Creation Technique

Selection of the distraction implant length with improved biomechanical properties by three-dimensional finite element analysis

Finite Element Analysis of Masticatory Stress on Neoformed Bone Tissue After Distraction Osteogenesis and Low-Level Laser Therapy: A Pilot Study

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