J Korean Acad Periodontol.  2008 Mar;38(1):67-74. 10.5051/jkape.2008.38.1.67.

The effect of Er:YAG laser irradiation on the surface microstructure and roughness of TiO2 implant

• An JH
• Kwon YH
• Park JB
• Herr Y
• Chung JH

• KMID: 1486786
• DOI: http://doi.org/10.5051/jkape.2008.38.1.67

Abstract

PURPOSE
The aim of this study was to evaluate the effect of Er:YAG laser on microstructure and roughness of TiO2 blasting implant surface.
MATERIALS AND METHODS
Ten TiO2 blasting implant were used in this experiment. One implant was control group, and nine TiO2 blasting implant surfaces were irradiated with Er:YAG laser under 100 mJ/pulse, 140 mJ/pulse, and 180 mJ/pulse condition for 1 min, 1.5 min, and 2 min respectively. Optical interferometer and scanning electron microscopy was utilized to measure roughness and microstructure of specimens.
RESULTS
The surface roughness was decreased after Er:YAG laser irradiation in all groups, but there was no significant difference. 100 mJ/pulse and 140 mJ/pulse group did not alter the TiO2 blasting implant surface in SEM study while 180 mJ/pulse group altered the TiO2 blasting implant surface. Implant surfaces showed melting, microfracture and smooth surface in 180 mJ/pulse group.
CONCLUSION
Detoxification of implant surface using Er:YAG laser must be irradiated with proper energy output and irradiation time to prevent implant surface alteration.

Keyword

Er:YAG laser; TiO2 implant; SEM study; surface roughness measurement

MeSH Terms

Freezing
Microscopy, Electron, Scanning