Titanium particles: An emerging risk factor for peri-implant bone loss
Objective: To investigate the presence of titanium particles in peri-implant tissues in cases diagnosed with peri-implantitis, and to identify immunological reactions that these particles may elicit. Methods: Ten peri-implant tissue biopsies of patients diagnosed clinically and radiographically with...
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doaj-f5b7aad181604c529bb52d29cde3407c2020-11-25T03:01:40ZengElsevierSaudi Dental Journal1013-90522020-09-01326283292Titanium particles: An emerging risk factor for peri-implant bone lossZoë Berryman0Laura Bridger1Haizal Mohd Hussaini2Alison M. Rich3Momen Atieh4Andrew Tawse-Smith5Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New ZealandSir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New ZealandDepartment of Oral Diagnostic and Surgical Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New ZealandDepartment of Oral Diagnostic and Surgical Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New ZealandMohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab EmiratesDepartment of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand; Corresponding author at: Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, 310 Great King Street, PO Box 56, Dunedin 9054, New Zealand.Objective: To investigate the presence of titanium particles in peri-implant tissues in cases diagnosed with peri-implantitis, and to identify immunological reactions that these particles may elicit. Methods: Ten peri-implant tissue biopsies of patients diagnosed clinically and radiographically with peri-implantitis were obtained from the archives of Oral Pathology Centre, University of Otago. The inclusion criteria involves: bleeding on probing, ≥6 mm probing depth and ≥3 mm radiographic bone loss around the dental implant. Peri-implant tissue samples were evaluated using scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDS) to identify of sites with/without titanium particles. Antibodies against human transforming growth factor beta 1 (TGF-β1), receptor activator of nuclear factor kappa-B ligand (RANKL), interleukin 33 (IL-33) and cluster of differentiation 68 (CD68) were used to stain the specimens. ImageJ software was used to standardise the sampling area, compare and characterise the inflammatory infiltrate in tissues with/without titanium particles. Inflammatory cytokines positivity was assessed using the immunoreactive scores (IRSs). Results: Light microscopy and SEM-EDS analysis identified titanium wear particles in 90% of the tissue samples, associated with a mixed chronic inflammatory infiltrate. Quantification analysis of RANKL revealed significantly higher IRS and intensity scores (p < 0.05) in areas containing titanium. High intensity, proportion and IRSs of TGF-β1 and IL-33 were observed in areas with titanium. CD68 had higher IRSs in the absence of titanium particles. Conclusions: Significant overexpression of the cytokine RANKL was observed, with a trend for over-expression of IL-33 and TGF-B1 in areas with titanium. Further studies with large sample size and appropriate control group for quantification analysis is needed to confirm the role of titanium particles in initiating bone loss.http://www.sciencedirect.com/science/article/pii/S1013905219306613Peri-implantitisDental implantsMicroscopyScanning electron microscopyCorrosionForeign body reaction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zoë Berryman Laura Bridger Haizal Mohd Hussaini Alison M. Rich Momen Atieh Andrew Tawse-Smith |
spellingShingle |
Zoë Berryman Laura Bridger Haizal Mohd Hussaini Alison M. Rich Momen Atieh Andrew Tawse-Smith Titanium particles: An emerging risk factor for peri-implant bone loss Saudi Dental Journal Peri-implantitis Dental implants Microscopy Scanning electron microscopy Corrosion Foreign body reaction |
author_facet |
Zoë Berryman Laura Bridger Haizal Mohd Hussaini Alison M. Rich Momen Atieh Andrew Tawse-Smith |
author_sort |
Zoë Berryman |
title |
Titanium particles: An emerging risk factor for peri-implant bone loss |
title_short |
Titanium particles: An emerging risk factor for peri-implant bone loss |
title_full |
Titanium particles: An emerging risk factor for peri-implant bone loss |
title_fullStr |
Titanium particles: An emerging risk factor for peri-implant bone loss |
title_full_unstemmed |
Titanium particles: An emerging risk factor for peri-implant bone loss |
title_sort |
titanium particles: an emerging risk factor for peri-implant bone loss |
publisher |
Elsevier |
series |
Saudi Dental Journal |
issn |
1013-9052 |
publishDate |
2020-09-01 |
description |
Objective: To investigate the presence of titanium particles in peri-implant tissues in cases diagnosed with peri-implantitis, and to identify immunological reactions that these particles may elicit. Methods: Ten peri-implant tissue biopsies of patients diagnosed clinically and radiographically with peri-implantitis were obtained from the archives of Oral Pathology Centre, University of Otago. The inclusion criteria involves: bleeding on probing, ≥6 mm probing depth and ≥3 mm radiographic bone loss around the dental implant. Peri-implant tissue samples were evaluated using scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDS) to identify of sites with/without titanium particles. Antibodies against human transforming growth factor beta 1 (TGF-β1), receptor activator of nuclear factor kappa-B ligand (RANKL), interleukin 33 (IL-33) and cluster of differentiation 68 (CD68) were used to stain the specimens. ImageJ software was used to standardise the sampling area, compare and characterise the inflammatory infiltrate in tissues with/without titanium particles. Inflammatory cytokines positivity was assessed using the immunoreactive scores (IRSs). Results: Light microscopy and SEM-EDS analysis identified titanium wear particles in 90% of the tissue samples, associated with a mixed chronic inflammatory infiltrate. Quantification analysis of RANKL revealed significantly higher IRS and intensity scores (p < 0.05) in areas containing titanium. High intensity, proportion and IRSs of TGF-β1 and IL-33 were observed in areas with titanium. CD68 had higher IRSs in the absence of titanium particles. Conclusions: Significant overexpression of the cytokine RANKL was observed, with a trend for over-expression of IL-33 and TGF-B1 in areas with titanium. Further studies with large sample size and appropriate control group for quantification analysis is needed to confirm the role of titanium particles in initiating bone loss. |
topic |
Peri-implantitis Dental implants Microscopy Scanning electron microscopy Corrosion Foreign body reaction |
url |
http://www.sciencedirect.com/science/article/pii/S1013905219306613 |
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