• Proceedings of the ESK Conference
• /
• 1995.10a
• /
• pp.192-200
• /
• 1995

본 연구에서는 점차 사용이 증가하고 있는 GUI 환경의 작업에서, 인간의 감 성인석을 색에 적용하고 이에 대한 수행도를 분석하고자 하였다. 실험은 우선 텍스트만 있는 윈도우와 색이 있는 윈도우와의 검색 시간을 비교하였다. 그리 고 색의 세 가지 속성인 색상, 채도, 명도와 검색 시간과의 관계를 알아보기 위해 색상, 채도, 명도, 거리를 독립변수로 하고 검색 시간을 종속변수로 하여 실험을 하였다. 그리고 색에 대한 인간의 감성 인식을 알아보고, 감성 인식을 고려한 색의 실질적인 수행도에 대해서도 분석하였다. 통계분석 결과, 색이 있는 환경에서의 검색 시간은 악 50.31% 향상되었으며, 색상과 채도의 수준 차이는 검색 시간에 유의한 것으로 나타났다. 색상의 경우는 녹색,적색 순 으로 검색 시간이 좋았으며, 채도의 경우는 회색이 적게 포함된 경우 검색 시간이 향상되었다. 그리고 감성을 고려한 색도 검색 시간이 향상된 것으로 나타났다. 본 연구는 여러 산업환경과 디자인 측면에 인간의 감성을 고려하 고 적용하는데 있어, 실질적인 수행도를 향상시키는 감성구현 방법과 이에 대 한 검증을 제시하고자 한다.

• Journal of Oral Medicine and Pain
• /
• v.37 no.4
• /
• pp.251-256
• /
• 2012

With today's heightened interest in quality of life, leisure and sports activities were popular in the general public. Accordingly, the incidence of oral and maxillofacial injury are also rising. Use of a mouth protector to prevent the trauma of the oral and maxillofacial region is growing in importance, and among the mouth protector the mouthguard is the most commonly used. Mouthguard has been suggested to protect injuries by (1) preventing tooth injuries by absorbing and deflecting blows to the teeth; (2) shielding the lips, tongue, and gingival tissues from laceration; (3) preventing opposing teeth from coming into violent contact; (4) providing the mandible with resilient support, which absorbs an impact that might fracture the unsupported angle or condyle of the mandible; (5) preventing neck and cerebral brain injuries. Although mouthguard is effective for prevention of oral and maxillofacial injury, it is not widespread to athletes or general public and they are lack of awareness about the importance of mouthguard. We present the types and materials of mouthguard, things to consider when mouthguard fabrication, and the usage. This should be helpful in awareness about the importance and popularization of mouthguard.

• The Science & Technology
• /
• v.31 no.3 s.346
• /
• pp.14-15
• /
• 1998

21세기는 문화의 세기라고 한다. 삶의 질을 추구하는 시기가 될 거라는 뜻이다. 우리는 그동안 우리나라가 세계의 중심이 된다는 허황된 구호에 현혹되어 무모한 경제개발에 목을 매고 살아왔다. 도덕은 땅에 떨어지고 높은 범죄율과 오염된 환경을 필요악으로 안고있는 경제대국 보다는 깨끗한 환경 속에서 적당한 경제수준을 유지하며 인간답게 살아가는 나라를 만들어야 하겠다. 그래서 나는 신문지면을 통해 새 정부에 경제부총리와 더불어 환경부총리를 건의한 바 있다.양대 부총리제가 부적합 하다면 차라리 미국처럼 환경부서를 독립시키는 방안이라도 고려해야 하겠다.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.17 no.2
• /
• pp.125-135
• /
• 2001

교합조정이나 대부분의 보철치료는 비가역적이어서 명확한 치료 계획이 없이는 섣불리 치료를 시작하지 말아야 한다. 명확한 치료 계획을 위해서는 증상의 원인 인자를 파악해야 하나, 때때로 그 원인이 불분명하여 환자에게 무어라 설명해야 할지 난감한 경우가 많은 것이 바로 이 분야이다. 교합 재구성을 함에 있어서 생체 역학과 근육의 활동량을 고려해야 하는 것은 이미 주지하고 있는 바이다. 즉, 악관절이나 치아에 대한 하중을 조절함으로써 근조직의 안정을 도모하여 적정한 하악위와 원활한 하악운동을 획득하는 것이 교합 재구성의 큰 목적 중 하나이다.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.17 no.4
• /
• pp.456-461
• /
• 1995

Tuberculosis, a chronic infectious granulomatous disease, is presumed to be quite a rare entity. Because of the development of chemotherapy and the improvement of nutritional conditions, incidence of tuberculosis have reduced. For these reasons, tuberculosis may be overlooked in the differential diagnosis whenever dealing with a submandibular swelling. Diagnosis of tuberculous lymphadenitis consists of historical data, physical findings, laboratory tests and histologic examination. The treatment of choice seems to be surgical excision and long term antituberculosis chemotherapy. Surgery provides a rapid tissue diagnosis, because the histological examination of the excisional biopsy is the most reliable diagnostic test. This is the report of a case of tuberculous cervical lymphadenitis on left submandibular area with no evidence of the involvement of lung.

• Journal of the Korea Computer Graphics Society
• /
• v.23 no.5
• /
• pp.19-27
• /
• 2017

In this paper, we propose an automatic segmentation method of the mandible using shape-constrained information in cranio-maxillo-facial CBCT images. The proposed method consists of the following two steps. First, the mandible segmentation based on the global shape information is performed through the statistical shape model generated using the MDCT images. Second, improvement of mandible segmentation is performed considering the local shape information and intensity characteristics of the mandible. To evaluate the performance of the proposed method, the proposed method was evaluated qualitatively and quantitatively based on the results of manual segmentation by expert. Experimental results show that the Dice Similarity Coefficient of the proposed method was 95.64% and 90.97%, respectively, in the mandible body region including the narrow region of large curvature and the condyle region with large positional variance.

• Korean Journal of Head & Neck Oncology
• /
• v.34 no.2
• /
• pp.47-51
• /
• 2018

Thyroglossal duct cyst is most common type of congenital cervical tumor. The suprahyoid thyroglossal duct cyst is a subtype of thyroglossal duct cyst and has different clinical characteristics. This subtype shows recurrent submental swelling and no tumor movement during swallowing or tongue protrusion. Because of these clinical differences, it is important to consider the possibility of thyroglossal duct cyst of in diagnosis and surgery of submental tumor. Recently, we have experienced two cases of suprahyoid type thyroglossal duct cyst with submental swelling and treated successfully by Sistrunk's operation.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.28 no.4
• /
• pp.397-406
• /
• 2012

Loss of tooth results in remodeling and resorption of surrounding alveolar bone which causes atrophic edentulous ridge and gradually decreasing gingival attachment. As a result, edentulous patients face difficulty in using dentures due to pain, decrease of support, decline of masticatory efficiency of complete denture. To improve this, overdenture with implant in the mandible and attachment are considered as a treatment of choice as a favorable treatment. In this case, a patient with edentulous ridge for long period is rehabilitated by complete denture in maxilla and implant overdenture using Locator$^{(R)}$ attachment in mandible.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.28 no.1
• /
• pp.171-174
• /
• 2001

This case describes a case of desmoplastic fibroma of the mandible. A 9-year-old boy was seen with a history of progressive swelling and expansion of the left mandible for one month period. Desmoplastic fibroma was diagnosed on histopathologic examination This report reviews the diagnostic criteria, differential diagnosis and surgical treatment of choice in brief of this uncommon primary bone tumor of the oral and maxillofacial region.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.32 no.1
• /
• pp.38-46
• /
• 2016

Purpose: study for discriminating method of origin side vibration from non-symptomatic clicking group. Materials and Methods: 60 joints vibrations of 30 subjects in non-symptomatic clicking group was recorded via subject's awareness, examiner's palpation and JVA analysis. Origin side vibration was discriminated with consideration for frequency spectrum, time delay and phase shift of waveforms, analysis of numeric values. Results: There were all unilateral vibrations with JVA analysis and number of origin vibrations were 42. 11 pairs of vibrations showed time delay and phase shift and transferred side vibrations showed smaller values of total integral and bigger values of > 300 / < 300 ratio than origin side vibrations except one pair of vibrations. Also as the ipsi-lateral joint vibrations with smaller values of total integral showed bigger values of > 300 / < 300 ratio than the contra-lateral joint vibrations and there all ipsi-lateral vibrations were showed small values of total integral below 10 and hard to detect time delay and phase shift. So the features were used in discrimination of origin side vibrations. Conclusion: There should be all-around considerations for discrimination of origin side vibrations that is frequency spectrum, phase shift and time delay and analysis of numeric values.