Experimental and Numeric Stress Analysis of Titanium and Zirconia One-Piece Dental Implants

Mobilio, Nicola; Stefanoni, Filippo; Contiero, Paolo; Mollica, Francesco; Catapano, Santo

doi:10.11607/jomi.2335

Cited by 13 publications

(19 citation statements)

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“…Mobilio et al compared the stress in bone around zirconia and titanium implants on loading. An one‐piece YTZP implant and a replica of the same implant composed of cpTi were embedded in two self‐curing acrylic resin blocks.…”

Section: Resultsmentioning

confidence: 99%

“…20,21 Nevertheless, zirconia has some limitations linked to its high elastic modulus (at about 240-260 GPa), hardness (at about 1.2 GPa), and ultralow chemical reactivity. The elastic modulus of zirconia is significantly higher than that recorded on cortical bone (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) GPa) that can result in stress shielding and peri-implant bone loss. The high hardness and chemical resistance is a limitation for surface modification procedure involving conventional grit-blasting and etching procedures.…”

Section: Introductionmentioning

confidence: 93%

“…Zirconia is a significantly proper material to peri‐implant soft tissue appearance and morphology than titanium. However, it is well known in the literature that buccal soft tissue thickness is a confounding factor in the appearance …”

Section: Introductionmentioning

confidence: 99%

“…The high hardness and chemical resistance is a limitation for surface modification procedure involving conventional grit‐blasting and etching procedures. Furthermore, surface modifications on zirconia by grinding and/or gritblasting must be avoided as the process severely affects the fracture strength of the material …”

Section: Introductionmentioning

confidence: 99%

“…However, it is well known in the literature that buccal soft tissue thickness is a confounding factor in the appearance. [13][14][15][16] The main benefits of zirconia compared to titanium implants include no metal aura in cases of deficiency of the buccal bone wall and/or thin mucosal biotype, corrosion resistance, and hypoallergenicity. 17,18 The color of zirconia can vary depending on the oxide content to mimic the color of natural teeth, which is a significant advantage to overcome aesthetic issues of titanium-based implant systems.…”

Section: Introductionmentioning

confidence: 99%

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Custom‐made root‐analogue zirconia implants: A scoping review on mechanical and biological benefits

et al. 2018

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The aim of this study was to conduct a literature review on the potential benefits of custom-made root-analogue zirconia implants. A PubMed and ScienceDirect bibliographical search was carried out from 1969 to 2017. The increased interest in zirconia-based dental structures linked to aesthetic and biological outcomes have been reported in literature. Recent technological advances have focused on novel strategies for modification of zirconia-based surfaces to accelerate osseointegration. However, only a few studies revealed mechanical and biological benefits of custom-made root-analogue zirconia implants and therefore further studies should investigate the influence of different design and surface modification on the performance of such implants. Custom-made root-analogue zirconia implants have become a viable alternative to overcome limitations concerning stress distribution, aesthetics, and peri-implantitis induced by biofilms. However, further in vitro and in vivo studies on surface-bone interactions and mechanical behavior of zirconia should be evaluated to reduce clinical issues regarding mechanical failures and late peri-implant bone loss. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2888-2900, 2018.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Custom‐made root‐analogue zirconia implants: A scoping review on mechanical and biological benefits

et al. 2018

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Biomechanical analyses of one‐piece dental implants composed of titanium, zirconia, PEEK, CFR‐PEEK, or GFR‐PEEK: Stresses, strains, and bone remodeling prediction by the finite element method

et al. 2021

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This work aimed to assess the biomechanics, using the finite element method (FEM), of traditional titanium Morse taper (MT) dental implants compared to one-piece implants composed of zirconia, polyetheretherketone (PEEK), carbon fiber-reinforced PEEK (CFR-PEEK), or glass fiber-reinforced PEEK (GFR-PEEK). MT and one-piece dental implants were modeled within a mandibular bone section and loaded on an oblique force using FEM. A MT implant system involving a Ti6Al4V abutment and a cp-Ti grade IV implant was compared to one-piece implants composed of cp-Ti grade IV, zirconia (3Y-TZP), PEEK, CFR-PEEK, or GFR-PEEK. Stress on bone and implants was computed and analyzed while bone remodeling prediction was evaluated considering equivalent strain. In comparison to one-piece implants, the traditional MT implant revealed higher stress peak (112 MPa). The maximum stresses on the onepiece implants reached $80 MPa, regardless their chemical composition. MT implant induced lower bone stimulus, although excessive bone strain was recorded for PEEK implants. Balanced strain levels were noticed for reinforced PEEK implants of which CFR-PEEK one-piece implants showed proper biomechanical behavior. Balanced strain levels might induce bone remodeling at the peri-implant region while maintaining low risks of mechanical failures. However, the strength of the PEEKbased composite materials is still low for long-term clinical performance.biomechanics, dental implants, dental materials, finite elements analysis, implant design 1 | INTRODUCTION Titanium dental implants have been increasingly used to replace missing teeth within a high long-term success rate as reported in literature. [1][2][3][4] Dental implants are often composed of two components: the endosseous implant itself and the abutment. The connection between traditional abutment and endosseous implants can be commonly achieved by screwing the abutment in the inner implant surfaces up to a maximum adequate torque or within a Morse taper (MT) effect, in which an applied preload generates stresses that keep the components attached to each each other. 5,6 At last, a single-or multi-unit prosthesis is cemented and/or screwed over the abutment to replace the coronal dental structure. MT implant systems typically reveal higher mechanical stability due to their connection on contacting surfaces and distribution of stresses to the bone. [5][6][7][8] However, the microgap existing between

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Zirconia ceramics in metal-free implant dentistry

Han

Zhao

Shen

2016

Advances in Applied Ceramics

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Because of their outstanding mechanical properties, chemical stability, and biocompatibility, 3-mol % yttria-stabilised tetragonal zirconia polycrystals (3Y-TZP), known as zirconia ceramics in dentistry, are an important choice for various types of prosthesis. In addition to extensive use for crown and bridge construction, considerable interest has been generated for applications in implant dentistry, including full-contour zirconia crowns as supra-constructions, zirconia abutments, and novel zirconia implants. However, their use among dentist and researchers is controversial, especially compared with the well-established implants made of titanium alloys. As a latecomer, the merits and limitations of 3Y-TZP are awaiting careful investigation. Design, manufacturing, and clinical operation guidelines are urgently needed. The aim of this review was to address the present status of the application of zirconia ceramics related to implant dentistry by analysing the published data from both in vitro and in vivo studies. Suggestions are provided for potential improvements and suitable applications of zirconia ceramics in metal-free implant dentistry. ARTICLE HISTORY

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Experimental and Numeric Stress Analysis of Titanium and Zirconia One-Piece Dental Implants

Cited by 13 publications

References 0 publications

Custom‐made root‐analogue zirconia implants: A scoping review on mechanical and biological benefits

Custom‐made root‐analogue zirconia implants: A scoping review on mechanical and biological benefits

Biomechanical analyses of one‐piece dental implants composed of titanium, zirconia, PEEK, CFR‐PEEK, or GFR‐PEEK: Stresses, strains, and bone remodeling prediction by the finite element method

Zirconia ceramics in metal-free implant dentistry

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