Er:YAG 레이저 조사가 티타늄의 표면특성에 미치는 영향
Influence of Er:YAG laser treatment on surface characteristics of titanium disc
엄소원, 선영곤, 이화선, 김영준,
소속 상세정보
엄소원 ( Uhm So-Won ) - 전남대학교 치과대학 치주과학교실
선영곤 ( Sun Young-Gon ) - 전남대학교 치과대학 치주과학교실
이화선 ( Lee Hwa-Sun ) - 전남대학교 치과대학 치주과학교실
김영준 ( Kim Young-Joon ) - 전남대학교 치과대학 치주과학교실
KMID : 0353320140380020092
Abstract
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.
키워드
Commercially pure titanium (cp-Ti); Er:YAG laser irradiation; Water contact angle
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