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KMID : 0353320140380020092
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Oral Biology Research
2014 Volume.38 No. 2 p.92 ~ p.98
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Influence of Er:YAG laser treatment on surface characteristics of titanium disc
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Uhm So-Won
Sun Young-Gon
Lee Hwa-Sun
Kim Young-Joon
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Abstract
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Purpose: The purpose of this study was to evaluate the changes in physical properties of commercially pure titanium (cp-Ti) after undergoing a Er:YAG laser irradiation.
Materials and Methods: Ti specimens were prepared in disks with 15 mm diameter and 2 mm thickness. These were divided into 3 groups: 1) group Ti-50: 50 mJ/pulse laser irradiation, 2) group Ti-100: 100 mJ/pulse laser irradiation, and 3) group Ti-250: 250 mJ/pulse laser irradiation. The control was untreated cp-Ti surface. Scaning electron microscopy (SEM) and atomic forced microscopy were used to observe the changes in surface configuration, X-ray diffraction (XRD) was used to analyze its composition. Furthermore, in order to find out more about its hydrophilic properties, contact angle measurement was performed.
Results: SEM images showed that linear depressions of cp-Ti’s surface were increased as the power of laser increased. XRD analysis showed a stable formation of TiO2. Cp-Ti with the laser treatment showed smaller water contact angle than control (p<0.05).
Conclusion: With all the results combined, it was suggest that Er:YAG laser irradiation could improve its physical properties which was more favorable in its cellular response.
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KEYWORD
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Commercially pure titanium (cp-Ti), Er:YAG laser irradiation, Water contact angle
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