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반조절성교합기와 Axiograph를 이용한 전방시상과로각 차이에 관한 연구
박건호,이성복,백진,최대균,Park, Geon-Ho,Lee, Sung-Bok,Bak, Jin,Choi, Dae-Gyun 대한치과보철학회 2007 대한치과보철학회지 Vol.45 No.5
Statement of problem: In the Protar articulator, the models are almost parallel with the Camper's plane. The ultrasonic-based ARCUSdigma system is basis for the determination of dynamic function parameters with so-called "articulator related registration". Purpose: The purpose of this study was to compare the sagittal condylar guidance angles found by use of the wax protrusive records in a semi-adjustable articulator(KaVo Protar 7) with those found by use of the Axiograph (ARCUSdigma). 83 volunteers with intact dentition participated in this study after obtainment of informed consent. Material and method: The sagittal condylar guidance angles were measured and estimated statistically by semi-articulator and Axiograph. All the readings were in degrees. No control was used in this project. To test whether there was a significant difference between the 2 independent samples, paired t-test and Kruskal-Wallis test were carried out(p=.05). Results: 1. The mean results for the wax protrusive records were as follow: right side (32.65 degrees, SD 16.48); left side (33.27 degrees, SD 17.49). 2. The mean results for the Axiograph were as follow: right side (32.26 degrees, SD 7.00); left side (33.07 degrees, SD 7.58). 3. There was no statistical difference on the wax protrusive records and Axiograph(p>0.05). Conclusion: Both methods of wax protrusive records and Axiograph are clinically acceptable for measuring the sagittal condylar guidance angles in semi-adjustable articulators.
박건호(Geon-Ho Park) 한국컴퓨터정보학회 2013 한국컴퓨터정보학회 학술발표논문집 Vol.21 No.2
본 연구에서는 RF sputtering법을 이용하여 Si기판 위에 SBN 박막을 증착시켜서, 온도 범위 600~800[?C]에서 열처리를 하였는데, 650[?C]에서 열처리된 박막의 경우 표면거칠기는 약 0.42[nm]로 나타났으며, 누설전류밀도는 전압 범위 -5~+5[V]에서 10-5[A/cm²] 이하로 안정된 값을 나타내었다.