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윤세나,한중석,여인성,윤형인,Yoon, Se-Na,Han, Jung-Suk,Yeo, In-Sung,Yoon, Hyung-In The Korean Academy of Prosthodonitics 2020 대한치과보철학회지 Vol.58 No.1
컴퓨터 지원 설계 제조 기술(CAD/CAM)의 발전에 따라, 완전한 디지털 워크플로우를 구현하기 위한 첫번째 단계인 구내스캐너의 중요성이 높아지기 시작했다. CAD/CAM 이중스캔 기술은 임시 수복물의 외형을 복제하여 최종 수복물에 반영하도록 하는 방법이다. 이 증례에서는 비심미적인 전치부, 중증도의 마모, 수직 고경의 감소를 보이는 67세 남성을 치관 연장술과 수직고경 회복을 동반한 완전구강회복을 통해 치료했다. 임시 수복물은 구내스캐너와 CAD/CAM 이중스캔을 이용해 제작되었다. 적응 기간 후, 최종 단일 구조 지르코니아 수복물을 CAD/CAM 이중스캔을 이용해 임시 수복물을 반영해 제작되었다. With the evolution of the computer-aided design/computer-aided manufacturing (CAD/CAM) technology, the intraoral scanners are playing an increasingly important role, as they are the first step towards a completely digital workflow. The CAD/CAM double scanning technique has been used to transfer the information from provisional restorations to definitive restorations. In this case, a 67-year-old male with esthetically compromised anterior teeth, generalized severe attrition of teeth, and reduced vertical dimension was treated with full mouth rehabilitation including a re-establishment of the lost vertical dimension of occlusion assisted by the crown lengthening procedure. The provisional restorations were fabricated using an intraoral scanner and the CAD/CAM double scanning technique. After the period of adaption, the definitive monolithic zirconia restorations were delivered. The CAD/CAM double scanning technique successfully transferred the occlusal and morphological characteristics, obtained from the provisional restorations, to the definitive restorations.
윤세나(Se Na Yun),고성권(Sung Kwon Ko),문상정(Sang Jong Moon),정성현(Sung Hyun Chung) 대한약학회 2005 약학회지 Vol.49 No.4
The ginseng root has been used as a tonic remedy, and its antidiabetic activity has been demonstrated as early as 1920s. Although wild ginseng was anecdotally thought to be superior to cultivated ginseng in terms of pharmacological properties, there have been no prior reports on its improvement of metabolic syndrome. In this study, we figured out whether wild ginseng ethanol extract (WGEE) exerted the preventive effects on high fat diet-induced metabolic syndrome as well as treatment effect in ICR mice. In the preventive mode experiment, WGEE at 500 mg/kg significantly inhibited body weight gain (16%), fasting blood glucose (37%) and insulin (37%), triglyceride (15%), and free fatty acid levels (32%) when compared to those in high fat diet (HFD) fed control group. WGEE-treated mice at doses of 250 and 500 mg/kg improved the insulin resistance index by 55% and 61% compared to the HFD control group, respectively, In the treatment mode experiment, WGEE also markedly reduced the blood glucose levels (210 mg/㎗ in control group was lowered to 167 mg/㎗).Taken together, WGEE has potential as a preventive and treatment agent for metabolic syndrome and deserves clinical trial in the near future.
윤세라,김지원,송다은,이보람,이정현,김용욱 KEMA학회 2019 근골격계과학기술학회 Vol.3 No.2
Background Previous studies have reported various advantages of general squat for functional activities. However, no study has reported the effect of lower leg muscle activity during squat on ankle stability with different supporting surface conditions. Purpose To investigate the effect of various support surfaces on lower leg muscle activation during squat performance and identify an effective way to prevent ankle injuries by increasing ankle stability. Study design Cross-sectional study. Methods Twenty healthy adults were recruited to compare lower leg muscle activation during squat performance on various support surfaces. Electromyographic activity was measured for tibialis anterior (TA), peroneus longus (PL), medial gastrocnemius (GCM), and lateral GCM muscles. Lower leg muscle activity during squat performance was calculated using mean value measured three times on each support surface. Repeated 3 × 2 two-way ANOVA measurements (surface conditions × leg sides) with Bonferroni’s correction was used to compare lower leg muscle activity from both sides on various support surfaces during squat exercise. Results TA muscle activity during squat performance under balance pad (BP) condition was significantly greater than that under togu (TG) condition (p<0.05). PL muscle activity during squat performance was significantly greater under bottom floor (BF) condition than that under BP or TG condition (p<0.05). Medial GCM muscle activity during squat performance was significantly greater under BP condition than that under BF or TG condition (p<0.05). TA and medial GCM muscle activities were the highest under BP condition, followed by those under BF and TG conditions. PL and lateral GCM muscle activities were the highest under BF condition, followed by those under BP and TG conditions. Conclusions For anteroposterior muscles of the lower leg, squat exercise needs to be performed on a slightly unstable support surface such as a BP. For lateral muscles of the lower leg, squat exercise needs to be performed on stable support surface such as BF. Background Previous studies have reported various advantages of general squat for functional activities. However, no study has reported the effect of lower leg muscle activity during squat on ankle stability with different supporting surface conditions. Purpose To investigate the effect of various support surfaces on lower leg muscle activation during squat performance and identify an effective way to prevent ankle injuries by increasing ankle stability. Study design Cross-sectional study. Methods Twenty healthy adults were recruited to compare lower leg muscle activation during squat performance on various support surfaces. Electromyographic activity was measured for tibialis anterior (TA), peroneus longus (PL), medial gastrocnemius (GCM), and lateral GCM muscles. Lower leg muscle activity during squat performance was calculated using mean value measured three times on each support surface. Repeated 3 × 2 two-way ANOVA measurements (surface conditions × leg sides) with Bonferroni’s correction was used to compare lower leg muscle activity from both sides on various support surfaces during squat exercise. Results TA muscle activity during squat performance under balance pad (BP) condition was significantly greater than that under togu (TG) condition (p<0.05). PL muscle activity during squat performance was significantly greater under bottom floor (BF) condition than that under BP or TG condition (p<0.05). Medial GCM muscle activity during squat performance was significantly greater under BP condition than that under BF or TG condition (p<0.05). TA and medial GCM muscle activities were the highest under BP condition, followed by those under BF and TG conditions. PL and lateral GCM muscle activities were the highest under BF condition, followed by those under BP and TG conditions. Conclusions For anteroposterior muscles of the lower leg, squat exercise needs to be performed on a slightly unstable support surface such as a BP. For lateral muscles of the lower leg, squat exercise needs to be performed on stable support surface such as BF.