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Is titanium alloy Ti‐6Al‐4 V cytotoxic to gingival fibroblasts—A systematic review

Objectives Grade V titanium alloy (Ti‐6Al‐4 V) is a well‐recognized metallic biomaterial for medical implants. There has been some controversy regarding the use of this alloy in medical devices in relation to the toxicity of vanadium. In Dentistry, Ti‐6Al‐4 V remains prevalent. This systematic revie...

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Published in:Clinical and experimental dental research 2021-12, Vol.7 (6), p.1037-1044
Main Authors: Willis, Jonathan, Li, Siwei, Crean, St John, Barrak, Fadi N.
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Crean, St John
Barrak, Fadi N.
description Objectives Grade V titanium alloy (Ti‐6Al‐4 V) is a well‐recognized metallic biomaterial for medical implants. There has been some controversy regarding the use of this alloy in medical devices in relation to the toxicity of vanadium. In Dentistry, Ti‐6Al‐4 V remains prevalent. This systematic review aims to evaluate the effects of Ti‐6Al‐4 V on cells relevant to oral environments such as gingival fibroblasts. Materials and methods A literature search was undertaken for relevant English language publications in the following databases: Dental and Oral Science, Medline and Web of Science. The electronic search was supplemented with a search of references. Results After application of inclusion and exclusion criteria. A total of eight papers are included in this review. These papers were all in vitro studies and were categorized into whole implant, discs, or implant particles based on the type of test materials used in the studies. Conclusion Based on the analyses of the eight included studies in this review, if Ti‐6Al‐4 V as a material is unchallenged, i.e., as a whole implant in pH neutral environments, there appears to be little effect on fibroblasts. If Ti‐6Al‐4 V is challenged through corrosion or wear (particle release), the subsequent release of vanadium and aluminium particles has an increased cytotoxic effect in vitro in comparison to commercially pure titanium, hence concerns should be raised in the clinical setting.
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There has been some controversy regarding the use of this alloy in medical devices in relation to the toxicity of vanadium. In Dentistry, Ti‐6Al‐4 V remains prevalent. This systematic review aims to evaluate the effects of Ti‐6Al‐4 V on cells relevant to oral environments such as gingival fibroblasts. Materials and methods A literature search was undertaken for relevant English language publications in the following databases: Dental and Oral Science, Medline and Web of Science. The electronic search was supplemented with a search of references. Results After application of inclusion and exclusion criteria. A total of eight papers are included in this review. These papers were all in vitro studies and were categorized into whole implant, discs, or implant particles based on the type of test materials used in the studies. Conclusion Based on the analyses of the eight included studies in this review, if Ti‐6Al‐4 V as a material is unchallenged, i.e., as a whole implant in pH neutral environments, there appears to be little effect on fibroblasts. If Ti‐6Al‐4 V is challenged through corrosion or wear (particle release), the subsequent release of vanadium and aluminium particles has an increased cytotoxic effect in vitro in comparison to commercially pure titanium, hence concerns should be raised in the clinical setting.</description><identifier>ISSN: 2057-4347</identifier><identifier>EISSN: 2057-4347</identifier><identifier>DOI: 10.1002/cre2.444</identifier><identifier>PMID: 34018703</identifier><language>eng</language><publisher>United States: John Wiley &amp; Sons, Inc</publisher><subject>Alloys ; Biopsy ; Cell culture ; Cytotoxicity ; Dental implants ; Dental Implants - adverse effects ; Dentistry ; Fibroblasts ; Fluorides ; Fractures ; implant ; Materials Testing ; Medical technology ; Orthopedics ; peri‐implantitis ; Review ; Stainless steel ; Systematic review ; Titanium - toxicity ; Titanium alloys ; Ti‐6Al‐4 V alloy</subject><ispartof>Clinical and experimental dental research, 2021-12, Vol.7 (6), p.1037-1044</ispartof><rights>2021 The Authors. published by John Wiley &amp; Sons Ltd.</rights><rights>2021 The Authors. 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There has been some controversy regarding the use of this alloy in medical devices in relation to the toxicity of vanadium. In Dentistry, Ti‐6Al‐4 V remains prevalent. This systematic review aims to evaluate the effects of Ti‐6Al‐4 V on cells relevant to oral environments such as gingival fibroblasts. Materials and methods A literature search was undertaken for relevant English language publications in the following databases: Dental and Oral Science, Medline and Web of Science. The electronic search was supplemented with a search of references. Results After application of inclusion and exclusion criteria. A total of eight papers are included in this review. These papers were all in vitro studies and were categorized into whole implant, discs, or implant particles based on the type of test materials used in the studies. Conclusion Based on the analyses of the eight included studies in this review, if Ti‐6Al‐4 V as a material is unchallenged, i.e., as a whole implant in pH neutral environments, there appears to be little effect on fibroblasts. 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Conclusion Based on the analyses of the eight included studies in this review, if Ti‐6Al‐4 V as a material is unchallenged, i.e., as a whole implant in pH neutral environments, there appears to be little effect on fibroblasts. If Ti‐6Al‐4 V is challenged through corrosion or wear (particle release), the subsequent release of vanadium and aluminium particles has an increased cytotoxic effect in vitro in comparison to commercially pure titanium, hence concerns should be raised in the clinical setting.</abstract><cop>United States</cop><pub>John Wiley &amp; Sons, Inc</pub><pmid>34018703</pmid><doi>10.1002/cre2.444</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-1042-0012</orcidid><oa>free_for_read</oa></addata></record>
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source Wiley Online Library Open Access; Publicly Available Content Database; PubMed Central
subjects Alloys
Biopsy
Cell culture
Cytotoxicity
Dental implants
Dental Implants - adverse effects
Dentistry
Fibroblasts
Fluorides
Fractures
implant
Materials Testing
Medical technology
Orthopedics
peri‐implantitis
Review
Stainless steel
Systematic review
Titanium - toxicity
Titanium alloys
Ti‐6Al‐4 V alloy
title Is titanium alloy Ti‐6Al‐4 V cytotoxic to gingival fibroblasts—A systematic review
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