1.A case of digital maxillary complete denture and mandibular implant overdenture fabricated by CAD-CAM technique
Kun Min KIM ; Kyung Chul OH ; Sang Hyun KIM ; Chol Gwan HAN ; Jee Hwan KIM
The Journal of Korean Academy of Prosthodontics 2021;59(4):442-450
The CAD-CAM technique is a rapidly developing field in the dental field and is applied to various fields of prosthetic treatment. Among them, the manufacturing of dentures using the milling technique classified as subtractive manufacturing is one of the commercialized digital full denture manufacturing methods. At the same time, it is possible to more efficiently manufacture a metal framework for implant overdenture by selective laser sintering or melting technique classified as an additive manufacturing method. The purpose of this article is to describe the fabrication of CAD-CAM maxillary complete denture and mandibular implant overdenture as well as its features.
2.A Case of Coarctation of Aorta with Left Isomerism Associated with Inferior Vena Cava Interruption and Polysplenia.
Gwan Hyeop SOHN ; Kyoung Min BYUN ; Hye Jin HAN ; Hak Jin KIM ; Jin Oh CHOI ; Sang Chol LEE ; Seung Woo PARK
Journal of Cardiovascular Ultrasound 2007;15(1):27-29
A 27-year-old female visited outpatient clinic for the evaluation of palpitation and dyspnea on exertion. Echocardiographic examination including transthoracic and transesophageal echocardiography revealed coarctation of aorta, bicuspid aortic valve, mitral valve prolapse, and sealed-up ventricular septal defect. Further evaluation with computed tomography angiography revealed another combined congenital anomaly of left isomerism with polysplenism and interrupted inferior vena cava and pulmonary embolism with deep vein thrombosis. After corrective surgery for the coarctation, she received anticoagulation therapy for the treatment and the secondary prevention of pulmonary embolism.
Adult
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Ambulatory Care Facilities
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Angiography
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Aortic Coarctation*
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Aortic Valve
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Bicuspid
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Dyspnea
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Echocardiography
;
Echocardiography, Transesophageal
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Female
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Heart Septal Defects, Ventricular
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Humans
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Isomerism*
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Mitral Valve Prolapse
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Pulmonary Embolism
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Secondary Prevention
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Vena Cava, Inferior*
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Venous Thrombosis
3.Effect of Enamel Matrix Drivatives application on the expression of PDLs17, PDLs22 of cultured human periodontal ligament cells in vitro.
Geun A HAN ; Hyun Seon JANG ; Jung Ki KOK ; Ju Chol PARK ; Heoung Jung KIM ; Jung Gwan KIM ; Byung Ock KIM
The Journal of the Korean Academy of Periodontology 2004;34(2):333-344
The enamel matrix derivative (EMD) has been recently used in the periodontal regenerative techniques. The present study was established to investigate the influence of EMD on human periodontal ligament cells using expression of mRNA of periodontal ligament specific gene (PDLs)17, PDLs22, type I collagen when EMD applied to periodontal ligament cells. Periodontal ligament cells were obtained from a healthy periodontium and cultured in Dulbecco's modified Eagle's medium (DMEM) plus 10% fetal bovine serum and beta-glycerophosphate with ascorbic acid. Test groups were two; One adds EMD in culture media and another added EMD and Dexamethasone (DEX) in culture media. Positive control group added DEX in culture media, and negative control group adds niether of EMD nor DEX. Emdogain(R) (Biora, Sweden, 30 mg/ml) was diluted by 75 microgram/ml concentration to culture media. For reverse transcription-polymerase chain reaction (RT-PCR), total RNA isolated on days 0, 7, 14 and 21. mRNA of PDLs17 was expressed on days 14 and 21 in EMD or DEX group, and expressed on days 7, 14 and 21 in EMD plus DEX group, the other side, expressed on days 21 in negative control group. mRNA of PDLs22 expressed on days 7, 14 and 21 in EMD group, and expressed on days 14 and 21 in DEX group, and expressed on days 7, 14 and 21 in EMD plus DEX group. Negative control group expressed on days 14 and 21. Type I collagen was expressed on all days and all groups. These results indicate that EMD promotes differentiation of periodontal ligament cells, and this is considered to offer basis that can apply EMD to periodontal tissue regeneration technique.
Ascorbic Acid
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Collagen Type I
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Culture Media
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Dental Enamel*
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Dexamethasone
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Humans*
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Periodontal Ligament*
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Periodontium
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Regeneration
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RNA
;
RNA, Messenger
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Sweden