Fatigue of Narrow Dental Implants: Influence of the Hardening Method

Pérez, Román A.; Gargallo, J Uson; Altuna, Pablo; Herrero-Climent, Mariano; Gil, F.J.

doi:10.3390/ma13061429

Cited by 17 publications

(10 citation statements)

References 27 publications

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“…The use of narrow implants is widely documented in patients with deficient bone crestal width in which, for some reason (increased healing time, cost, or patient morbidity), the application of horizontal bone regenerative techniques is not indicated [17][18][19]. The mechanical strength of titanium narrow implants is sometimes not enough to support the dynamic forces.…”

Section: Introductionmentioning

confidence: 99%

Influence of Connection Type and Platform Diameter on Titanium Dental Implants Fatigue: Non-Axial Loading Cyclic Test Analysis

Nicolás-Silvente

Velasco‐Ortega

Ortiz-García

et al. 2020

IJERPH

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Two-pieces dental implants must provide stability of the implant-abutment-interface. The connection type and platform diameter could influence the biomechanical resistance and stress distribution. This study aims to evaluate the fatigue for different types of connections, external and internal, and different platform diameters. Three implant designs with the same length were used: (a) external hexagon/narrow platform; (b) internal double hexagon/narrow platform; (c) internal octagon/regular platform. A fatigue test was developed to establish the number of cycles needed before fracture. A 30º oblique load with a sinusoidal function of fatigue at a frequency of 15 Hz and 10% stress variation was applied to each system. The fatigue load limit (FLL) for design (a) was 190N, being the nominal-curvature-moment (NCM) = 1.045; FLL = 150 N, with a NCM = 0.825 for (b), and FLL = 325 N, with a NCM = 1.788 for (c). The platform diameter affects the FLL, obtaining lower FLL on a narrow platform. The connection type interferes with the implant walls’ width, especially in narrow implants, making internal connections more unstable at this level. Long-term clinical studies to assess the restoration’s success rate and survival are mandatory.

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Section: Introductionmentioning

confidence: 99%

Influence of Connection Type and Platform Diameter on Titanium Dental Implants Fatigue: Non-Axial Loading Cyclic Test Analysis

Nicolás-Silvente

Velasco‐Ortega

Ortiz-García

et al. 2020

IJERPH

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“…Stain and Mc Collin confirmed that when placing TPS implants in the jaws of patients, it takes three months to achieve stable osseointegration in Misch class 1-2-3 bone, while in class 4 bone it takes four to six months [ 59 ]. If, however, dental fixtures with biomimetic characteristics—such as SLA implants—are inserted, the time is considerably reduced to about six weeks in classes 1-2-3 and twelve weeks for class 4, because of the opportunity of promoting the proliferation and differentiation of cells with osteogenic potential in a shorter time and with better performance changes [ 57 , 60 ].…”

Section: Discussionmentioning

confidence: 99%

Endosseous Dental Implant Materials and Clinical Outcomes of Different Alloys: A Systematic Review

et al. 2022

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In recent years, implantology has made significant progress, as it has now become a safe and predictable practice. The development of new geometries, primary and secondary, of new surfaces and alloys, has made this possible. The purpose of this review is to analyze the different alloys present on the market, such as that in zirconia, and evaluate their clinical differences with those most commonly used, such as those in grade IV titanium. The review, conducted on major scientific databases such as Scopus, PubMed, Web of Science and MDPI yielded a startling number of 305 results. After the application of the filters and the evaluation of the results in the review, only 10 Randomized Clinical Trials (RCTs) were included. Multiple outcomes were considered, such as Marginal Bone Level (MBL), Bleeding on Probing (BoP), Survival Rate, Success Rate and parameters related to aesthetic and prosthetic factors. There are currently no statistically significant differences between the use of zirconia implants and titanium implants, neither for fixed prosthetic restorations nor for overdenture restorations. Only the cases reported complain about the rigidity and, therefore, the possibility of fracture of the zirconium. Certainly the continuous improvement in these materials will ensure that they could be used safely while maintaining their high aesthetic performance.

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“…The dψ vs. sen2ψ graphs and the calculation of the slope of the linear regression (A) were done with appropriate software (Origin, Microcal, Northampton, MA, USA). The residual stress is: σ = EC × (1/d 0 ) × A; where d 0 is the interplanar distance for ψ = 0° [ 28 , 29 ].…”

Section: Methodsmentioning

confidence: 99%

Mechanical Properties and Corrosion Behavior of Ti6Al4V Particles Obtained by Implantoplasty: An In Vitro Study. Part II

et al. 2021

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In the field of implant dentistry there are several mechanisms by which metal particles can be released into the peri-implant tissues, such as implant insertion, corrosion, wear, or surface decontamination techniques. The aim of this study was to evaluate the corrosion behavior of Ti6Al4V particles released during implantoplasty of dental implants treated due to periimplantitis. A standardized protocol was used to obtain metal particles produced during polishing the surface of Ti6Al4V dental implants. Physicochemical and biological characterization of the particles were described in Part I, while the mechanical properties and corrosion behavior have been studied in this study. Mechanical properties were determined by means of nanoindentation and X-ray diffraction. Corrosion resistance was evaluated by electrochemical testing in an artificial saliva medium. Corrosion parameters such as critical current density (icr), corrosion potential (ECORR), and passive current density (iCORR) have been determined. The samples for electrochemical behavior were discs of Ti6Al4V as-received and discs with the same mechanical properties and internal stresses than the particles from implantoplasty. The discs were cold-worked at 12.5% in order to achieve the same properties (hardness, strength, plastic strain, and residual stresses). The implantoplasty particles showed a higher hardness, strength, elastic modulus, and lower strain to fracture and a compressive residual stress. Resistance to corrosion of the implantoplasty particles decreased, and surface pitting was observed. This fact is due to the increase of the residual stress on the surfaces which favor the electrochemical reactions. The values of corrosion potential can be achieved in normal conditions and produce corroded debris which could be cytotoxic and cause tattooing in the soft tissues.

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Fatigue of Narrow Dental Implants: Influence of the Hardening Method

Cited by 17 publications

References 27 publications

Influence of Connection Type and Platform Diameter on Titanium Dental Implants Fatigue: Non-Axial Loading Cyclic Test Analysis

Influence of Connection Type and Platform Diameter on Titanium Dental Implants Fatigue: Non-Axial Loading Cyclic Test Analysis

Endosseous Dental Implant Materials and Clinical Outcomes of Different Alloys: A Systematic Review

Mechanical Properties and Corrosion Behavior of Ti6Al4V Particles Obtained by Implantoplasty: An In Vitro Study. Part II

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