Influence of Trabecular Bone on Peri-Implant Stress and Strain Based on Micro-CT Finite Element Modeling of Beagle Dog

Liao, Shenghui; Zhu, Xiaojin; Xie, Jing; Sohodeb, Vikesh Kumar; Ding, Xi

doi:10.1155/2016/3926941

Cited by 9 publications

(6 citation statements)

References 26 publications

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“…More thickness results in a decrease of the maximum stress values at the cortical bone . In addition, the trabecular bone microstructure can disperse the stress and strain and function as a load buffer through the trabecular network and the basal bone.…”

Section: Loading the Implant‐bone Interfacementioning

confidence: 99%

Effects of occlusal forces on the peri‐implant‐bone interface stability

Delgado-Ruíz

Calvo-Guirado

Romanos

2019

Periodontology 2000

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The Glossary of Prosthodontic Terms defines occlusion as the 'act or process of closure, being closed or shut off and the static relationship between the incising or masticating surfaces of the maxillary or mandibular teeth or tooth analogs'. 1 To achieve the dental occlusion, the skeletal and muscular systems work simultaneously to produce the mandibular movement, which transfers force to the prosthesis, teeth, implants, and adjacent supporting bone. 2 But the dental/implant occlusion is not just a simple contact between opposite surfaces. It is complex, and also includes the friction of multiple inclined planes and different force vectors (axial and nonaxial). 3 These force vectors occur simultaneously and are transient and therefore the concept of a unidirectional occlusal force should be replaced by the concept of multidirectional occlusal forces. 4 Additional forces of swallowing and sometimes parafunctions are applied to the system and overloading can appear. 2 Occlusal overload has been defined as the load greater than prostheses, implant components, or interface that tissues are capable of withstanding without damage. 1 For Laney, overload is occurring if the occlusal load exerted through function or parafunctions exceeds the resistance of the prosthesis, implant components, implant, and osseointegrated interface, resulting in structural or biological damage. 5 At the biological level, overload is produced when the amount of force overextends the adaptation capabilities of the host site. 6All the structures subject to occlusal forces can be exposed to physiological loading or overloading. 6 In the case of physiological loading, forces <3000 microstrains are dissipated through the occlusal surfaces, prosthetic structure, implant-abutment connection, retention screw, implant body, implant bone interface, and surrounding, supporting bone (Figure 1). 7 Meanwhile, overload strains >3000 microstrains might affect the weakest part of the system producing structural and/or biological failures. 8The applied occlusal bite forces are extremely difficult to quantify because they are not absolute and have great variability, which is influenced by factors such as duration, distribution, direction, and magnitude of forces. 9 Also, other factors such as the number and location of teeth and implants, their inclinations within the dental arch, the kind of restoration, and the bone quality can influence the resultant forces and therefore their accurate measurement. 10,11 In relation to the maximum biting forces produced in patients with osseointegrated implants, different magnitudes of occlusal forces have been recorded, with values ranging between 25 and 1000 N. [12][13][14][15][16][17][18][19][20][21][22][23] These studies agree that the forces transmitted by the anterior teeth are lower than those transmitted by the posterior teeth, that among the posterior teeth the second molar exerts the maximum levels of force, and that gender influences the bite force, with higher biting forces being generated by men compared with w...

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Section: Loading the Implant‐bone Interfacementioning

confidence: 99%

Effects of occlusal forces on the peri‐implant‐bone interface stability

Delgado-Ruíz

Calvo-Guirado

Romanos

2019

Periodontology 2000

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“…In one study analyzing the relationship between the quality of cortical bone and stress distribution, Kitagawa et al 37 found an inverse correlation between cortical bone thickness and the stress values encountered at the bone. In a FEA study, Liao and colleagues 38 concluded that trabecular bone can disperse the stress and strain generated by occlusal load to various degrees based on their coarseness and architecture, and serve as a buffer to loading. The macro and microgeometry of the implant fixture affects the nature and magnitude of load transferred to the bone‐implant interface.…”

Section: Occlusion As a Predisposing Factor For Peri‐implant Diseasementioning

confidence: 99%

“…Thus, mechanical loading can induce both a negative or positive effect for the net bone tissue. The exact mechanisms that determine either an anabolic or catabolic response to load are difficult to discern due to the multitude of factors involved, but may be related to the surrounding bone quality, 37,38 the magnitude and direction of forces, 39,40 as well as the macro and micro-geometry of the implant fixture. 41…”

Section: Bone Remodeling and Occlusal Loadmentioning

confidence: 99%

Occlusion as a predisposing factor for peri‐implant disease: A review article

Lee

Alamri

Cao

et al. 2022

Clin Implant Dent Rel Res

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Background The restoration of dental implants presents a unique challenge due to the intrinsic biomechanical differences between osseointegrated implants and natural teeth, and their subsequent responses to occlusal loading. However, controversy exists regarding the role that occlusion plays in the physiology of the peri‐implant complex. Purpose To provide an overview of the scientific literature regarding occlusion as it relates to implant dentistry and peri‐implant disease. Materials and Methods This article presents a narrative review on occlusal loading and its potential effects on the peri‐implant complex, as well as some generally accepted guidelines for occlusion in implant dentistry. Results and Conclusions Although there is strong evidence linking occlusal factors to mechanical complications of dental implants, the same cannot be said regarding biological complications. There is no clear scientific evidence on the relationship between occlusal overload and peri‐implant disease. However, occlusal overload may be an accelerating factor for peri‐implant disease in the presence of inflammation. As the biomechanical properties of dental implants differ from that of the natural dentition, modifications to classic concepts of occlusion may be necessary when dental implants are involved. Thus, clinical recommendations are proposed which function to minimize unfavorable occlusal forces on implant restorations and reduce the associated biological and mechanical complications.

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“…The total contact area between the implant and bones of implant I is 214.5 mm 2 , which exceeds type (2) ITI commercial implant by about 42%. The improvements for both types (1) and (2) implants would undoubtedly enhance the osseointegration [ 41 , 42 ], which would help to prevent damage to the bone [ 43 ]. Thus, implant IV in case (1) and implant I in case (2) are regarded as the implants with the best healing chamber under the given loads.…”

Section: Application To Dental Implants In Posterior Maxillary Bonmentioning

confidence: 99%

Numerical Method for the Design of Healing Chamber in Additive-Manufactured Dental Implants

Lee

Tsai²,

Huang

et al. 2017

BioMed Research International

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The inclusion of a healing chamber in dental implants has been shown to promote biological healing. In this paper, a novel numerical approach to the design of the healing chamber for additive-manufactured dental implants is proposed. This study developed an algorithm for the modeling of bone growth and employed finite element method in ANSYS to facilitate the design of healing chambers with a highly complex configuration. The model was then applied to the design of dental implants for insertion into the posterior maxillary bones. Two types of ITI® solid cylindrical screwed implant with extra rectangular-shaped healing chamber as an initial design are adopted, with which to evaluate the proposed system. This resulted in several configurations for the healing chamber, which were then evaluated based on the corresponding volume fraction of healthy surrounding bone. The best of these implants resulted in a healing chamber surrounded by around 9.2% more healthy bone than that obtained from the original design. The optimal design increased the contact area between the bone and implant by around 52.9%, which is expected to have a significant effect on osseointegration. The proposed approach is highly efficient which typically completes the optimization of each implant within 3–5 days on an ordinary personal computer. It is also sufficiently general to permit extension to various loading conditions.

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Influence of Trabecular Bone on Peri-Implant Stress and Strain Based on Micro-CT Finite Element Modeling of Beagle Dog

Cited by 9 publications

References 26 publications

Effects of occlusal forces on the peri‐implant‐bone interface stability

Effects of occlusal forces on the peri‐implant‐bone interface stability

Occlusion as a predisposing factor for peri‐implant disease: A review article

Numerical Method for the Design of Healing Chamber in Additive-Manufactured Dental Implants

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