Effect of Different Abutments and Connections in Deformation Crestal Bone

Mesquita, Alfredo Mikail Melo; Silva, Juliano H. M.; Saraceni, Cíntia Helena Coury; Kojima, Alberto Noriyuki; Özcan, Mutlu

doi:10.1097/id.0000000000000419

Cited by 3 publications

(9 citation statements)

References 25 publications

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“…Current research seeks to determine connections that can distribute stresses more efficiently in the bone tissue and structures linked to the implant-supported prosthesis. [4,5]; peri-implant bone preservation is also a point of extensive discussion [2,3].…”

Section: Introductionmentioning

confidence: 99%

Effect of different types of prosthetic platforms on stress-distribution in dental implant-supported prostheses

Minatel

Verri

Kudo

et al. 2017

Materials Science and Engineering: C

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A biomechanical analysis of different types of implant connections is relevant to clinical practice because it may impact the longevity of the rehabilitation treatment. Therefore, the objective of this study is to evaluate the Morse taper connections and the stress distribution of structures associated with the platform switching (PSW) concept. It will do this by obtaining data on the biomechanical behavior of the main structure in relation to the dental implant using the 3-dimensional finite element methodology. Four models were simulated (with each containing a single prosthesis over the implant) in the molar region, with the following specifications: M1 and M2 is an external hexagonal implant on a regular platform; M3 is an external hexagonal implant using PSW concept; and M4 is a Morse taper implant. The modeling process involved the use of images from InVesalius CT (computed tomography) processing software, which were refined using Rhinoceros 4.0 and SolidWorks 2011 CAD software. The models were then exported into the finite element program (FEMAP 11.0) to configure the meshes. The models were processed using NeiNastram software. The main results are that M1 (regular diameter 4mm) had the highest stress concentration area and highest microstrain concentration for bone tissue, dental implants, and the retaining screw (P<0.05). Using the PSW concept increases the area of the stress concentrations in the retaining screw (P<0.05) more than in the regular platform implant. It was concluded that the increase in diameter is beneficial for stress distribution and that the PSW concept had higher stress concentrations in the retaining screw and the crown compared to the regular platform implant.

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Section: Introductionmentioning

confidence: 99%

Effect of different types of prosthetic platforms on stress-distribution in dental implant-supported prostheses

Minatel

Verri

Kudo

et al. 2017

Materials Science and Engineering: C

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“…Force magnifiers, such as cantilevers, offset loads, and monumental forces to the implant body dramatically increase the force applied to a prosthesis, and reduce bone strength which should be considered for a consistent approach to implant reconstruction [5,28]. The greater the length of the cantilever, the greater the surface deformation of the bone around the distal implant [5,29]. So keep the length of the cantilever arm to a minimum [5,6,28,30,31] or elimination in the prescription to the dental technician in implantsupported prostheses should be addressed when possible [31].…”

Section: Discussionmentioning

confidence: 99%

Analysis of Bone-implant Interfacial Stress during Disocclusion in Complete Implant-supported Prosthesis: A Finite Element Study

Greco¹,

Pereira

Miranda³

et al. 2017

BJMMR

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“…Polyurethane was therefore used because this substrate has been used in earlier works with strain gauge analysis to simulate human bone marrow. Polyurethane is a homogeneous and isotropic substrate [ 7 ].…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, it is also known that if the load transferred to an implant or peri-implant bone exceeds physiological limits, there may be failure in rehabilitation or even loss of osseointegration [ 7 , 8 ]. Therefore, any factors that may reduce the stress generated in the implant/prosthesis system must be regarded and studied.…”

Section: Introductionmentioning

confidence: 99%

“…The load transfer at the bone–implant interface depends on, among other factors, the type of load, quantity and quality of bone tissue, implant geometry, position, number and linear arrangement of implants, occlusal surface size, prosthetic interfaces, parafunctional occlusal habits, bite force, primary mechanical stability and type of prosthetic retention. Thus, it appears that when the occlusal force exceeds the stress absorbance capacity of the osseointegrated interface, the implant may fail [ 7 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Restorative Material on the Distribution of Loads to the Bone in Hybrid Abutment Crowns—In Vitro Study

Martins,

Castro,

Dib

et al. 2023

Medicina

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Background: The objective of this study was to evaluate the load transmitted to the peri-implant bone by seven different restorative materials in single-unit rehabilitations with morse taper implants using a strain gauge. Materials: In a polyurethane block that simulated type III bone, a morse taper platform implant was installed (3.5 × 11 mm) in the center and 1 mm below the test base surface, and four strain gauges were installed around the implant, simulating the mesial, distal, buccal and lingual positions. Seven similar hybrid abutment crowns were crafted to simulate a lower premolar using different materials: 1—PMMA; 2—glass ceramic over resin matrix; 3—PEEK + lithium disilicate; 4—metal–ceramic; 5—lithium disilicate; 6—zirconia + feldspathic; 7—monolithic zirconia. All groups underwent axial and oblique loads (45 degrees) of 150 N from a universal testing machine. Five measurements (n = 5) were performed with each material and for each load type; the microdeformation data underwent statistical analysis. The data were obtained in microdeformation (με), and the significance level was set at p ≤ 0.05. Results: There was no statistically significant difference in the evaluation among the materials under either the axial load or the oblique load at 45 degrees. In turn, in the comparison between axial load and oblique load, there was a difference in load for all materials. Conclusion: The restorative material did not influence the load transmitted to the bone. Furthermore, the load transmitted to the bone was greater when it occurred obliquely at 45° regardless of the material used. In conclusion, it appeared that the different elastic modulus of each material did not influence the load transmission to the peri-implant bone.

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Effect of Different Abutments and Connections in Deformation Crestal Bone

Cited by 3 publications

References 25 publications

Effect of different types of prosthetic platforms on stress-distribution in dental implant-supported prostheses

Effect of different types of prosthetic platforms on stress-distribution in dental implant-supported prostheses

Analysis of Bone-implant Interfacial Stress during Disocclusion in Complete Implant-supported Prosthesis: A Finite Element Study

Influence of Restorative Material on the Distribution of Loads to the Bone in Hybrid Abutment Crowns—In Vitro Study

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