• Restorative Dentistry and Endodontics
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• v.30 no.1
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• pp.66-71
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• 2005

Periapical cemental dysplasia(PCD) is a condition most commonly seen in the mandibular incisor region. Radiographically it passes through the three phases(osteolytic stage, intermediate stage, and mature stage). At osteolytic stage, the lesion is similar to features associated with granuloma or cyst that arise following pulpal necrosis. So, it is important to confirm the vitality of the pulp to diagnosis. In this case, it is difficult to confirm the vitality of involved tooth because the tooth was covered with PFG bridge. And it is unusual that the PCD lesion at mandibular incisors has occurred at first and the lesion of mandibular canine and mandibular premolar were occurred afterward.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2023.04a
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• pp.43-44
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• 2023

• Journal of the korean academy of Pediatric Dentistry
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• v.28 no.1
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• pp.180-184
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• 2001

Cleidocranial Dysplasia(CCD) is an autosomal dominant human bone disease characterized by abnormal clavicles, patent sutures and fontanelles, and dental anomalies. Among dental anomalies, it is characterized that permanent dentition is severly disturbed due to multiple supernumerary teeth and abnormalities of tooth morphology. A eight-year-old female patient diagnosed as cleidocranial dysplasia visited in our hospital. Upon clinical oral exam, retained deciduous teeth, constriction of dental arch, anterior cross bite, and multiple dental caries were observed. In the dental panoramic radiograph, retained deciduous teeth and multiple supernumerary teeth in the maxilla and the mandible were found. In the cephalometric radiograph, open sutures and wormian bones were seen. In the chest P-A view absence of clavicles was observed. The cleidocranial dysplasia patients have eruption problems in permanent dentition both in regions with and without supernumerary teeth. The severely delayed or arrested eruption of permanent teeth has been ascribed to various factors : 1) The presence of multiple supernumerary teeth, 2) malformed roots with lack of cellular cementum, 3) the jaw bone being too dense, and 4) abnormal resorption of bone and primary teeth. Formation and maturation of primary teeth in cleidocranial dysplasia are normal, whereas the permanent dentition has various anomalies. Therefore, dentists should understand the development of dentition in cleidocranial dysplasia, and treat them in proper time.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.1
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• pp.96-101
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• 2009

Regional odontodysplasia(ROD) is relatively rare localized developmental anomaly of tooth formation in which hard tissue is affected. The maxilla is typically affected than the mandible, and especially the maxillary left quadrant is the most commonly involved. Females are affected twice as often as males, and there is no association with race. Its etiology remains undetermined, but local circulatory disorders, somatic mutations, virus infections, local trauma, hyperpyrexia, irradiation, metabolic disturbances, and hereditary transmission are considered as possible etiologic factors. The affected teeth are likely to be small, hypoplastic, brown, and grooved. Eruption failure or delay is frequently seen as well as abscess or fistulae formation in absence of caries. Radiographically, there is a lack of contrast between the enamel and dentin, both of which are less radiopaque than unaffected counterparts. Moreover, enamel and dentin layers are thin, giving the teeth a “ghost-like appearance”. The pulp chambers and canals are large, the roots seem like to be short and indistinct. A 2-year-3-month old boy came to the department of pediatric dentistry, Yonsei University, with the chief complaint of delayed eruption and abnormal tooth shape on the lower left quadrant. He was diagnosed as regional odontodysplasia based on the clinical and radiographic findings.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2002.04a
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• pp.141-148
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• 2002

As the city in Korea has been developed rapidly and quantitatively, land viewscape has been neglected and is being recognized as one of the important issue that we have to interest in now. But land viewscape scene has not yet constructed numerically and objectively, therefore the analysis of urban viewscape had been made inefficiently, nonsystmetically, inexactively. In this study, the quantitative analysis of urban viewscape by using digital photogrammetry and GIS was made. At the result of this study, it was showed that 3D analysis of urban viewscape using digital photogrammetry is numerical, quantitative and objective not intuitive, quantitative and subjective.

• Journal of Veterinary Clinics
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• v.14 no.2
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• pp.370-375
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• 1997

8개월령의 체중이 40.4kg인 로트와일러 수컷 어린개와 9개월령의 체중 34.6kg인 골 든 레트리버 수컷 어린개가 각각 2주령과 1개월령부터 파행 및 통증을 주중으로 머독대학 동물 병원에 내원 하였다. 내원 했을 때 호흡과 심박수 및 체온은 정상이었다. 일반 보행 및 신경검사 와 방사선 사진을 촬영하여 확인한 결과 양측 고관절 이형성(Hip displasia)과 퇴행성 관절질환 (Degenerative joint disease)을 확인 할 수 있었으며, 그 증상의 정도는 우측에 비하여 좌측이 더 심하게 나타냈다. 외과적 치료는 Slocum과 Devine에 의한 3중 고관절 절단술(Triple pelvic osteotomy)를 실시하였으며 특별한 외부 고정은 하지 않았다. 수술 후 5개월 동안 지켜본 결과 증 상은 매우 좋아졌으며 골반골의 완벽한 고정 유지에 따른 교정된 고관절을 확인 할 수 있었다.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.175-183
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• 2021

Gongjae Yoon DuSeo(1668~1715), from Haenam in the late Joseon Dynasty, is a scholar-born painter who was active during King Sukjong. He is the person who created the foundation as a pioneer of realist paintings in the late Joseon period during the transition from the middle to the latter period. He was born in Namin's prestigious family, but he ended his career as part of a partisan fight and immersed himself in painting and learning. 18C, the beginning of the late Joseon Dynasty, was a period when Silhak emerged and the Jinkyung era opened with awareness of nationalism. At this time, by incorporating the Silhak thought into the art world, the real reformed aesthetic consciousness was demonstrated to pioneer common people's customs, the application of Western painting methods, the pursuit of realist techniques, and the introduction of Namjongmuninhwa. His view of painting, who thoroughly learned the old things and pursued change, must have both the form and spirit that he can achieve 'HwaDo' only when it has the science of 'learning and knowledge' and the technical elements of 'practice and quality' emphasized. He has worked in a variety of reconciliations. In particular, portrait paintings are characterized by ihyeongsasin's realistic expressions of aesthetics. His masterpiece, 「Self-portrait」, excels in extreme-realistic depiction and innovation in composition, and stands out with an unconventional experimentation spirit that expresses his mind and thoughts in a painting with a sense of resentment. His landscape paintings combine to express the form as it is and mental notions, and beautifully embodied Do as a form, thus achieving ihyeongmido, which reached the level of'joyfulness forgotten even the heart of joy'. On the other hand, the generalization of the common people using various common people's lives as the subject of an open-mindedness aimed at gaining the facts of ihyeongsajin, a passive protest against corrupt power and an expression of a spirit of love. Since then, his painting style has been passed down from generation to generation to his eldest son Yoon Deok-hee and his grandson Yoon Yong, leading the change and revival of calligraphy art in the late Joseon Dynasty.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.19 no.2
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• pp.183-188
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• 2001

Topographic map is important for the additional detailed construction planning followed by slope sliding. It is a base map that is used to compute the volume of soil, the cost of construction, and check the stability in the area of slope sliding. In this study, 3D topographic data were acquired appling softcopy photogrammetry to the dangerous slope, and the method which can transform these data to the same coordinates system as early TM coordinates was designed. There was a problem when the one meter contour line was made by analysing the image taken from the distance three hundred meters. By solving this problem, this could be used as important data for the planning of road expansion construction. It is expected to be useful for the measurement of various dangerous area in civil engineering works.

• The Korean Journal of Nuclear Medicine
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• v.25 no.2
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• pp.219-226
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• 1991

골 신티 그라피는 섬유성 골 이형성증의 초기 병소와 다골성 형 섬유성 골 이형성증의 진단에 예민한 검사 방법이나, 양성 또는 악성 골 병변과의 감별진단에 어려움이 있었다. 이에 저자들은 조직학적으로 확진된 섬유성 골 이형성증 환자 17명에서 (단골성 형 12명, 다골성 형 : 5명) $^{99m}Tc-MDP$ (20 mCi 또는 7,400 MBq) 주사후 $2\sim4$시간에 전면, 후면 전신상과 부분상을 얻은 30부위 병소를 X선 사진과 비교분석 하였으며 CT, MRI 영상과 병리조직 소견을 얻었다. 병소 침습 부위별로는 대퇴골-10예, 경골-4, 요골-2, 늑골-2, 척추골-2, 후두골-2, 장골-2, 두정골-1, 하악골-1, 접형골-1, 견갑골-1, 쇄골-1, 척골-1예 였으며 5명의 다골성 형에서는 :우 대퇴골과 우 비골 : 양측 말단 대퇴골 :좌 경골과 좌 대퇴골 :우 요골과 우 장골 양측 대퇴골, 양측 경골, 접형골, 두정골, 척추골, 늑골과 장골이었다. 골 신티 그라피 소견상 30예중 28예에서(28/30, 93.3%) 방사능 섭취 증가를 보였으며 2예에서(2/30, 6.7%)는 정상 방사능 섭취 소견을 보였으나 각각은 X선상 불투명 유리상과 골흡수 병변을 보였다. 하악골의 골 3상 스캔상 병소에 현저한 혈류 증가가 관찰되었다. X선 소견상 30예중 11예에서 (l1/30, 36.7%) 불투명 유리상의 병변을, 골 변형을 동반한 1예를 포함한 18예에서는 (18/30, 60.0%) 골흡수 병변을 보였으며, 1예의 늑골 병변은 정상소견을 보였다(1/30, 3.3%). 이상에서 골 신티 그라피 만으로 섬유성 골 이형성증을 진단하는데는 주의를 요하나 골 대사의 동적 측면인 혈류와 골 재형성 양상 특히, 초기 병변과 단골성 형 침습에서 다골성 형을 진단하는데 필수적이며 결론적으로 골 신티 그라피와 X선 촬영등은 섬유성 골 이형성증 진단에 상호보완적인 검사 방법으로 사료된다.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.3
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• pp.456-463
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• 2009

Cleidocranial dysplasia(CCD) is a congenital disorder of skeletal and dental abnormality, which is a mesodermal dysfunction influencing many tisssues and organs. Skeletal abnormalities in CCD are delayed closure of cranial suture and fontanelle, presence of wormian bone and clavicle aplasia. CCD also has an effect on long bones, phalanges, spine, pelvis, muscles, and central nervous system. Dental manifestations include retention of deciduous teeth, multiple supernumerary teeth, delayed eruption or impaction of permanent teeth and formation of cysts around nonerupted teeth. However, due to lack of any substansive medical or physical disability, diagnosis is often late, thereby causing masticatory and psychological problems caused by delayed eruption of permanent teeth after exfoliation of deciduous teeth. For this reason, CCD requires early diagnosis, and the patient's appearance must be improved. Also, provision for a functional masticatiory mechanism by treatment of surgical removal of supernumerary teeth followed by orthodontic eruption of the natural permanent teeth at an adequate time is necessary.