• 대한치과의사협회지
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• 제58권2호
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• pp.83-92
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• 2020

In the anterior maxillary area, dental implants for tooth replacement are challenging due to the need to satisfy high esthetic level as well as functionality. Immediate implant placement and provisionalization can dramatically reduce the edentulous period, and then fulfill patient's demand for esthetics. The aim of present case report is to demonstrate two cases that successfully restored single tooth with immediate implant placement and provisionalization in the anterior maxillary area. A 47 years old female was scheduled to replace her maxillary right central incisor due to crown-root fracture by trauma. Another 54-year-old female was planned to place dental implant following tooth extraction of maxillary right lateral incisor owing to continuous pus discharge despite repetitive treatments including apicoectomy. In these two cases, surgical and prosthetic procedures progressed in a similar way. After minimal flap elevation, atraumatic tooth extraction was performed. Implant was placed in proper 3-dimensional position and angulation with primary stability. Bone graft or guided bone regeneration for peri-implant bone defect was conducted simultaneously. Provisionalization without occlusal loading was carried out at the same day. Each definitive crown was delivered at 7 and 5 months after the surgery. Two cases have been followed uneventfully for 2 to 5 years of loading time. In conclusion, Immediate implant placement and provisionalization could lead to esthetic outcome for single tooth replacement with dental implant under proper case selection.

• 생물정신의학
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• 제10권2호
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• pp.147-158
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• 2003

Objective:The differences of various neurocognitive functions, including attention, memory, motor function, and higher cognitive function were compared between PTSD patients and normal control subjects. Also, correlation with PTSD symptom severity and neurocognitive functions were evaluated between PTSD patients and normal control subjects. Method:We assessed the neurocognitive functions by computerized neurocognitive test(CNT) batteries. The visual continuous performance test(CPT) and digit span test, finger tapping test and Wisconsin card sorting test(WCST) were executed. The Impact of Event Scale-Revised(IES-R) was used in the evaluation of the severity of PTSD. Result:The PTSD patients showed significantly impaired neurocognitive performance in all of the items, compared with normal control subjects. The relation between impairment in neurocognitive functions and symptom severity showed significant correlations. Conclusion:These results imply that PTSD patients have impaired neurocognitive functions concerning with specific brain areas, especially the frontal area. For the thorough evaluation of further neurocognitive functions, more detailed evaluation items of neurocognitive functions and brain imaging studies are necessary in the future study.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제32권2호
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• pp.179-182
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• 2006

The term odontoma, first introduced by Broca, was originally applied to all odontogenic tumors. Related to the clinical and histological differences, 2 groups of odontoma were defined: compound odontoma and complex odontoma. Complex odontoma is more common in the mandible than in the maxilla, usually occuring in the mandibular premolar-molar area. And this consists of small mass of irregularly arranged enamel, dentine, cementum, and connective tissue, but tooth-like structures are not found. In our case, 34 year old man was diagnosed as the complex odontoma of maxillary sinus by the physical exam, Panex, and C.T scan. We sectioned and removed it, and then confirmed the diagnosis histopathologically. Its uncommon location and size made us report that case and review the literature concerned.

• 대한족부족관절학회지
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• 제22권3호
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• pp.116-119
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• 2018

Gout occurs mainly in monoarthritis and is found in more than 50% of cases in hallux of the foot. In addition, symptoms sometimes begin in the hand, wrist, and elbow, but they are rarely observed in the spine. The patient was referred for tuberculous polyarthritis due to antituberculosis drug failure. Inflammatory findings were observed in the lumbar, elbow, wrist, hand and foot areas. Surgery was performed on the foot area and a pathology diagnosis revealed gouty arthritis. We report this case with a review of the relevant literature.

• 대한두개안면성형외과학회지
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• 제22권6호
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• pp.333-336
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• 2021

Verrucous carcinoma (VC) is a rare subtype of squamous cell carcinoma that commonly occurs in the oral cavity. However, VC of the facial skin is relatively rare. We report a case of a 91-year-old woman with VC of the facial skin in the left zygoma area. She was diagnosed with actinic keratosis (4×3 cm) of the same site approximately 12 years previously, but declined further treatment. The mass was excised with a minimum of 0.4 cm from gross margins with the result of free from tumor of all margins by frozen section, allowing for primary closure after skin undermining. Basal resection was performed in the preplatysmal plane. The diagnosis of VC was confirmed by histopathological examination. Postoperatively, the wound healed without incident and with no signs of facial nerve injury. To our knowledge, this is the first reported case of VC of facial skin arising from actinic keratosis.

• Archives of Plastic Surgery
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• 제39권2호
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• pp.113-117
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• 2012

Background : Nasal pyramid fractures accompanied by saddle nose deformities are not easily corrected by closed reduction. We used an absorbable plate as a perpendicular strut to support the collapsed "keystone area" and obtained good results. Methods : Between September 2008 and June 2011, 18 patients who had nasal pyramid fractures with saddle nose deformities underwent surgery. Pre- and postoperative facial computed tomographic images and photographs were taken to estimate outcomes. The operative technique included the mucoperichondrial dissection of the nasal septum, insertion of an absorbable plate prepared to an appropriate length to support the "keystone area", and fixation of the absorbable plate strut to the cartilaginous septum. Results : Functional and esthetic outcomes were satisfactory in all patients. Eleven patients assessed the postoperative appearance of the external nose as 'markedly improved' and 7 patients as 'improved'. The 5 surgeons scored the results as a mean of 4.5 on a 5-point scale. Conclusions : The use of an absorbable plate as a perpendicular strut requires no additional procedures because the plate is gradually absorbed. The mechanical strength provided by a buttress between the "keystone area" and the maxillary crest lasts for a long time before the strut is absorbed.

• 한국의류학회지
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• 제26권6호
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• pp.889-900
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• 2002

The purpose of this study was; to investigate consumers'selection criteria for their trade area when purchasing apparel products; to study whether there is a difference on the importance of the selection criteria; to examine consumers'willingness to visit specific trade area according to the types of apparel products. Four hundred sixty-nine female consumers who lived in the two new towns, Bundang and Ilsan participated in the study by completing questionnaires. Data were analyzed using factor analyses, t-tests, paired t-teats and chi-square analyses. The results indicated that consumer selected trade area based on shop variety within trade areas and range of products, customer services, environment of trade area, price level, entertaining features of the trade area, and the convenience of location and shopping time. In addition, the importance of these criteria varied according to the types of apparel products(i.e. formal wears and casual wears). The types of apparel products had influence on consumers'willingness to visit specific trade area. Consumers preferred the trade areas in the new towns for purchasing formal wears, whereas they frequented the trade areas in Seoul for purchasing casual wears.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1269-1278
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• 2009

수도권에는 49%로의 인구가 집중되어 있고, 광역교통망이 갖춰져 있지 않아 성남축, 고양/파주축, 인천/부천축 등에는 교통량 증대로 교통혼잡, 통행시간지연 등의 교통문제가 발생되고 있다. 고양/파주축에는 대중교통분담율이 51.2%이고, 송용차는 48.8%로 높은 상태이며, 지하철은 27.3%로 낮고, 택지 개발계획을 통해 53만인 거주계획 등이 있어 광역철도교통이 요구되고 있다. 강남$\sim$일산간 37.8Km/h에 급행철도 도입에 관한 연구를 수행한 결과, 150Km/h의 급행열차를 운행할 경우는 강남에서 킨텍스까지 표정속도는 103Km/h이고, 소요시간은 약 23분정도이다. 본 사업노선의 교통수요를 분석한 결과 일일 237,000명 정도(환송 포함)로 예측되었고, B/C는 1.08로서 사업의 경제적 타당성은 있는 것으로 분석되었다.

• Journal of Dental Anesthesia and Pain Medicine
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• 제17권4호
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• pp.317-321
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• 2017

The present case report describes a complication involving facial blanching symptoms occurring during inferior alveolar nerve block anesthesia (IANBA). Facial blanching after IANBA can be caused by the injection of an anesthetic into the maxillary artery area, affecting the infraorbital artery.

• 대한방사선기술학회지:방사선기술과학
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• 제43권5호
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• pp.343-351
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• 2020

This study analyzed dose reduction and quality of images through dose reduction tools and shielding board to protect sensitive eye lens in radiation during orbit CT examinations for clinical data use. During CT scans of the phantom, surface dose (CT scanner dosimetry phantom, ion chamber-3 times) and quality of image (radiosurgery head phantom, visual assessment-2 times, HU standard deviation) were evaluated using X-care which is dose reduction tools and bismuth shielding board. The results of experiments of eight conditions showed a relatively reduced dose in all other conditions compared to when no conditions were set. In particular, the area corresponding to the ophthalmic part reduced the surface dose by up to 45.7 %. The visual evaluation of images by specialists and the quality evaluation of images analyzed by HU standard deviation were clinically closest to the use of X-care and shielding board (1 cm in height). Therefore, it is believed that the use of shielding board in a suitable location with dose reduction tools while investigating the optimal radiation dose will reduce the exposure dose of sensitive lens at radiation while maintaining the quality of the images with high diagnostic value.