do titanium particles cause bone loss around dental implants? · 2019-10-24 · dental implants...

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Do Titanium Particles Cause Bone Loss Around Dental Implants? WANG et al. (2019) | DOI: 10.1111/JRE.12633 MACROPHAGE POLARIZATION IN ASEPTIC BONE RESORPTION AROUND DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL Bone loss around dental implants leads to implant failure Is bone loss triggered by leakage of titanium (Ti) particles from the implant, and if so, what is the mechanism? Bone loss Ti particles + clodronate Ti particles + empty liposomes Ti particles + PBS PBS control Ti implanted in Sprague Dawley rats Analysis of implants Ti increases inflammatory M1 macrophages, pro-inflammatory cytokines, and bone loss Inflammatory cytokines and bone loss induced by Ti particles were reduced upon depletion of macrophages by clodronate Ti Ti Ti TNF-α TNF-α TNF-α TNF-α RANKL RANKL IL-1β IL-1β IL-1β IL6 IL6 IL6 IL6 IL6 Ti Ti Ti Ti Ti Clodronate Titanium particles from dental implants activate macrophages that cause inflammatory reactions resulting in bone loss and implant failure

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Page 1: Do Titanium Particles Cause Bone Loss Around Dental Implants? · 2019-10-24 · DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL Ti particles + clodronate Ti particles +

Do Titanium Particles Cause Bone Loss Around Dental Implants?

WANG et al. (2019) | DOI: 10.1111/JRE.12633

MACROPHAGE POLARIZATION IN ASEPTIC BONE RESORPTION AROUND DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL

Bone loss around dental implants leads to implant failure

Is bone loss triggered by leakage of titanium (Ti) particles from the implant, and if so, what is the mechanism?

Bone loss

Ti particles + clodronate

Ti particles + empty liposomes

Ti particles + PBS

PBS control

Ti implanted in Sprague Dawley rats

Analysis of implants

Ti increases inflammatory M1 macrophages, pro-inflammatory cytokines, and bone loss

Inflammatory cytokines and bone loss induced by Ti particles were reduced upon depletion of macrophages by clodronate

Ti

Ti

Ti

TNF-α

TNF-α

TNF-α

TNF-α

RANKL

RANKL

IL-1β

IL-1βIL-1β

IL6

IL6IL6

IL6

IL6

Ti

Ti

Ti

Ti

Ti

Clodronate

Titanium particles from dental implants

activate macrophages that cause inflammatory

reactions resulting in bone loss and implant

failure

Page 2: Do Titanium Particles Cause Bone Loss Around Dental Implants? · 2019-10-24 · DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL Ti particles + clodronate Ti particles +

Ti increases inflammatory M1 macrophages, pro-inflammatory cytokines, and bone loss

Inflammatory cytokines and bone loss induced by Ti particles were reduced upon depletion of

macrophages by clodronate

Ti

Ti

Ti

TNF-α

TNF-α

TNF-α

TNF-α

RANKL

RANKL

IL-1β

IL-1βIL-1β

IL6

IL6IL6

IL6

IL6

Ti

Ti

Ti

Ti

Ti

Clodronate

Do Titanium Particles Cause Bone Loss Around Dental Implants?

Bone loss

Titanium particles from dental implants activate macrophages that cause

inflammatory reactions resulting in bone loss and

implant failure

WANG et al. (2019) | DOI: 10.1111/JRE.12633

MACROPHAGE POLARIZATION IN ASEPTIC BONE RESORPTION AROUND DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL

Ti particles + clodronate

Ti particles + empty liposomes

Ti particles + PBS

PBS control

Ti implanted in Sprague Dawley rats

Analysis of implants

Bone loss around dental implants leads to implant failure

Is bone loss triggered by leakage of titanium (Ti) particles from the implant, and if so, what is the mechanism?

Page 3: Do Titanium Particles Cause Bone Loss Around Dental Implants? · 2019-10-24 · DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL Ti particles + clodronate Ti particles +

Ti increases number of inflammatory macrophages

Clodronate reduces production of inflammatory cytokines in bone caused by Ti

Ti

Ti

Ti

TNF-α

TNF-α

TNF-α

TNF-α

RANKL

RANKL

IL-1β

IL-1βIL-1β

IL6

IL6IL6

IL6

IL6

Ti

Ti

Ti

Ti

Ti

Clodronate

Do Titanium Particles Cause Bone Loss Around Dental Implants?

Bone loss

Ti particles + clodronate

Ti particles + empty liposomes

Ti particles + PBS

PBS controlTi implanted in

Sprague Dawley rats Analysis ofimplants

Bone loss around dental implants leads to implant failure

Is bone loss triggered by leakage of titanium (Ti) particles from the implant,

and if so, what is the mechanism?

Titanium particles from dental implants

activate macrophages that

cause inflammatory reactions resulting in

bone loss and implant failure

WANG et al. (2019) | DOI: 10.1111/JRE.12633

MACROPHAGE POLARIZATION IN ASEPTIC BONE RESORPTION AROUND DENTAL IMPLANTS INDUCED BY TI PARTICLES IN A MURINE MODEL