IADR Abstract Archives
Reduction Of Surface Hydrocarbons On Dental Implants Using UVA and UVC Photofunctionalization.
Objectives: To compare the surface changes in titanium, carbon and oxygen levels on titanium dental implants with or without ultraviolet irradiation using various wavelengths by X-ray photoelectron spectroscopy.
Methods: This experimental study was performed on sandblasted and acid-etched treated dental implants divided among three group. Implants in control group A were not given ultraviolet light exposure, whereas group B were exposed to ultraviolet A (UVA) light having 382nm, 25mWcm2 and group C were exposed to UVC light 260nm, 15mWcm2. The atomic ratio of oxygen, titanium and carbon was compared among the three groups by using X-ray photoelectron spectroscopy.
Results: The mean carbon to titanium ratio was significantly decreased in the two experimantal groups in contrast to the control group. X-ray photoelectron spectroscopy analysis showed significant raise in intensity of Ti 2p and O 1s spectra for UVA and UVC in contrast to control group; subsequently C1 spectra was significantly raised in control group indicating low content of hydrocarbons on titanium dental implants after photofunctionalization.
Conclusions: UVC photo-functionalization has the potential to induce greater surface energy and hydrophilicity on hybrid sandblasted and acid-etched implants as compared to UVA irradiation.
Methods: This experimental study was performed on sandblasted and acid-etched treated dental implants divided among three group. Implants in control group A were not given ultraviolet light exposure, whereas group B were exposed to ultraviolet A (UVA) light having 382nm, 25mWcm2 and group C were exposed to UVC light 260nm, 15mWcm2. The atomic ratio of oxygen, titanium and carbon was compared among the three groups by using X-ray photoelectron spectroscopy.
Results: The mean carbon to titanium ratio was significantly decreased in the two experimantal groups in contrast to the control group. X-ray photoelectron spectroscopy analysis showed significant raise in intensity of Ti 2p and O 1s spectra for UVA and UVC in contrast to control group; subsequently C1 spectra was significantly raised in control group indicating low content of hydrocarbons on titanium dental implants after photofunctionalization.
Conclusions: UVC photo-functionalization has the potential to induce greater surface energy and hydrophilicity on hybrid sandblasted and acid-etched implants as compared to UVA irradiation.