Radioiodine-131 Therapy Used for Differentiated Thyroid Cancer Can Impair Titanium Dental Implants: An In Vitro Analysis.
Cancers (Basel)
; 15(9)2023 Apr 29.
Article
in En
| MEDLINE
| ID: mdl-37174023
ABSTRACT
BACKGROUND:
The aim was to assess, in vitro, the effects of radioiodine-131 (I-131) on the structure of titanium implants. MATERIAL ANDMETHODS:
A total of 28 titanium implants were divided into 7 groups (n = 4) and irradiated at 0, 6, 12, 24, 48, 192 and 384 hours. At the end of the experiment, each sample was investigated via scanning electron microscopy (SEM) and electrochemical measures.RESULTS:
The control sample revealed a smooth and compact surface. The small micro-sized porosity is slightly visible at the macroscopic level, but the precise details cannot be observed. A mild exposure to the radioactive solution for 6 to 24 h showed a good preservation of the macro-structural aspects such as thread details and surface quality. Significant changes occurred after 48 h of exposure. It was noticed that the open-circuit potential (OCP) value of the non-irradiated implants move toward more noble potentials during the first 40 min of exposure to the artificial saliva and then stabilizes at a constant value of -143 mV. A displacement of the OCP values toward more negative values was observed for all irradiated implants; these potential shifts are decreasing, as the irradiation period of the tested implants increased.CONCLUSION:
After exposure to I-131, the structure of titanium implants is well preserved up to 12 h. The eroded particles start to appear in the microstructural details after 24 h of exposure and their numbers progressively increase up to 384 h after exposure.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Cancers (Basel)
Year:
2023
Document type:
Article
Affiliation country:
Rumanía