Dental Implants

Reinhardt, Belinda; Beikler, Thomas

doi:10.1016/b978-0-12-394619-5.00004-3

Cited by 11 publications

(8 citation statements)

References 23 publications

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“…ACCEPTED MANUSCRIPT 4 Frandsen et al [27] found that Ta shows a better biological behavior compared to titanium dioxide (TiO 2 ) surfaces, when alkaline phosphatase activity tests were performed. In fact, Ta revealed a faster rate of matrix mineralization (≈ 30%) due to its surface chemistry properties.…”

Section: Accepted Manuscriptmentioning

confidence: 98%

“…Several materials have been proposed for use as dental implants, namely, 316L stainless steel (SS 316L) [1], chromium-cobalt-molybdenum alloy (Cr-Co-Mo) [2], hydroxyapatite (HAp) [3], zirconia (ZrO 2 ) and/or alumina (Al 2 O 3 ) [4] but only a few of them have been accepted such as commercially pure titanium grade 2 (CP Ti Gr2) [5,6] and titanium-6aluminium-4vanadium alloy (Ti6Al4V -Ti Gr5) [7][8][9][10]. Currently, most dental implants are manufactured on CP Ti Gr2 or Ti Gr5, with threaded geometries with internal connections for the abutments [11].…”

Section: Introductionmentioning

confidence: 99%

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Bioactivity response of Ta 1-x O x coatings deposited by reactive DC magnetron sputtering

Alves

Cavaleiro

Carvalho

2016

Materials Science and Engineering: C

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The use of dental implants is sometimes accompanied by failure due to periimplantitis disease and subsequently poor esthetics when soft-hard tissue margin recedes. As a consequence, further research is needed for developing new bioactive surfaces able to enhance the osseous growth. Tantalum (Ta) is a promising material for dental implants since, comparing with titanium (Ti), it is bioactive and has an interesting chemistry which promotes the osseointegration. Another promising approach for implantology is the development of implants with oxidized surfaces since bone progenitor cells interact with the oxide layer forming a diffusion zone due to its ability to bind with calcium which promotes a stronger bond. In the present report Ta-based coatings were deposited by reactive DC magnetron sputtering onto Ti CP substrates in an Ar+O2 atmosphere. In order to assess the osteoconductive response of the studied materials, contact angle and in vitro tests of the samples immersed in Simulated Body Fluid (SBF) were performed. Structural results showed that oxide phases where achieved with larger amounts of oxygen (70 at.% O). More compact and smooth coatings were deposited by increasing the oxygen content. The as-deposited Ta coating presented the most hydrophobic character (100°); with increasing oxygen amount contact angles progressively diminished, down to the lowest measured value, 63°. The higher wettability is also accompanied by an increase on the surface energy. Bioactivity tests demonstrated that highest O-content coating, in good agreement with wettability and surface energy values, showed an increased affinity for apatite adhesion, with higher Ca/P ratio formation, when compared to the bare Ti substrates.

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Section: Accepted Manuscriptmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Bioactivity response of Ta 1-x O x coatings deposited by reactive DC magnetron sputtering

Alves

Cavaleiro

Carvalho

2016

Materials Science and Engineering: C

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“…Moreover, Ti and Ti alloys are the most used materials in implant manufacturing, some drawbacks related to the accumulation of Ti particles in the surrounding tissue lead to inflammatory responses, , and the dark grayish color and consequent esthetic issues , boosted the investigation of ceramic implant materials. Zirconia has been suggested as an alternative material for Ti dental implants, and some review reports have tried to address the advantages and disadvantages of each one. ,, Indeed, zirconia dental implants exhibit exceptional characteristics such as toothlike color, good mechanical properties, and biocompatibility. Lower rate adhesion of bacteria, , lower cytotoxicity, and minimal ion release were also reported .…”

Section: Introductionmentioning

confidence: 99%

“…Zirconia has been suggested as an alternative material for Ti dental implants, and some review reports have tried to address the advantages and disadvantages of each one. ,, Indeed, zirconia dental implants exhibit exceptional characteristics such as toothlike color, good mechanical properties, and biocompatibility. Lower rate adhesion of bacteria, , lower cytotoxicity, and minimal ion release were also reported . However, as pointed by Sivaraman et al and Reinhard and Beikler, the main disadvantage of zirconia implants is that the clinical studies are mainly short term, with a limited number of long-term studies.…”

Section: Introductionmentioning

confidence: 99%

Titanium-Based Alloy Surface Modification with TiO₂and Poly(sodium 4-styrenesulfonate) Multilayers for Dental Implants

Kitagawa

Miyazaki

Palin

et al. 2021

ACS Appl. Bio Mater.

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Implant placement is an important repair method in dentistry and orthopedics. Increasing efforts have focused on optimizing the biocompatibility and osseointegration properties of titanium (Ti) and Ti-based alloys. In this work, Ti-based alloys were modified by the layer-by-layer (LbL) technique, which is a simple and versatile method for surface modification. The morphology and chemical structure of LbL films of poly(sodium 4-styrenesulfonate) (PSS) and Ti dioxide (TiO2) nanoparticles were first characterized employing ultraviolet–visible and Fourier-transform infrared spectroscopies as well as atomic force microscopy for further application in Ti-based alloy implants. The changes provoked by the LbL PSS/TiO2 film on the Ti-based alloy surfaces were then investigated by scanning electron microscopy and micro-Raman techniques. Finally, in vivo tests (immunolabeling and biomechanical analysis) performed with screw implants in rats suggested that PSS/TiO2 multilayers promote changes in both topography and chemical surface properties of the screw, providing beneficial effects for osteoblast activity. This simple and relatively low-cost growth process can open up possibilities to improve dental implants and, probably, bone implants in general.

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“…Therefore, it is widely used as a dental implant (Sidambe, 2014). Titanium dental implants have excellent success rates (Reinhardt and Beikler, 2014), however, they are associated with bone resorption over time around the crest of the alveolar ridge due to the mismatch between the elastic modulus of the titanium implant and that of the alveolar bone (Gao et al, 2019;Schwitalla and Müller, 2013;Shibata et al, 2015;Zivic et al, 2017). The main disadvantage of titanium is its high elasticity modulus when compared to that of bone, which leads to the concentration of loading pressure on to the implant, resulting in stress shielding with reduced loading on the surrounding bone.…”

Section: Introductionmentioning

confidence: 99%

The current state of PEEK implant osseointegration and future perspectives: a systematic review

Alotaibi¹,

Naudi²,

Conway³

et al. 2020

eCM

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Polyetheretherketone (PEEK) has been considered as an alternative to replace surgical metal implants. Several medical applications, including dental and orthopaedic implants, need confirmed osseointegration before functional loading. The present study aims at providing a comprehensive systematic review of the evidence on PEEK implants' osseointegration. A systematic search was conducted using Cochrane library, MEDLINE (PubMed), Ovid MEDLINE, Web of Science and EMBASE databases. Publications were identified in accordance with specific inclusion and exclusion criteria. Eligibility screening, data extraction and quality assessment were performed. The review protocol was registered in PROSPERO (CRD42018116061). A total of 55 articles were reviewed and 29 of the most relevant that met the inclusion criteria were selected. Heterogeneity was identified among the included studies. Several approaches have been applied to enhance PEEK osseointegration, with most in vivo studies conducted on small-scale animal models but no study evaluating the osseointegration of PEEK under cyclic loading. However, PEEK modifications are demonstrated to enhance osseointegration preclinically. Collectively, the present review shows a shortage of evidence, including a lack of comprehensive assessment of osseointegration, the need for large-animal-model tests, the need to assess the effect of loading on the implants and the lack of randomised controlled clinical trials.

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Dental Implants

Cited by 11 publications

References 23 publications

Bioactivity response of Ta 1-x O x coatings deposited by reactive DC magnetron sputtering

Bioactivity response of Ta 1-x O x coatings deposited by reactive DC magnetron sputtering

Titanium-Based Alloy Surface Modification with TiO₂and Poly(sodium 4-styrenesulfonate) Multilayers for Dental Implants

The current state of PEEK implant osseointegration and future perspectives: a systematic review

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Dental Implants

Cited by 11 publications

References 23 publications

Bioactivity response of Ta 1-x O x coatings deposited by reactive DC magnetron sputtering

Bioactivity response of Ta 1-x O x coatings deposited by reactive DC magnetron sputtering

Titanium-Based Alloy Surface Modification with TiO2and Poly(sodium 4-styrenesulfonate) Multilayers for Dental Implants

The current state of PEEK implant osseointegration and future perspectives: a systematic review

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Titanium-Based Alloy Surface Modification with TiO₂and Poly(sodium 4-styrenesulfonate) Multilayers for Dental Implants