• The Journal of Advanced Prosthodontics
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• 제5권3호
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• pp.364-368
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• 2013

The case report describes the occlusal rehabilitation of a male patient with Angle Class III malocclusion and its effect on maximum bite force. The main complaints of patient were masticatory difficulty and poor esthetic. The patient's expectations from the treatment were a good esthetic and function with a less invasive and relatively promptly way. Therefore, increasing of the occlusal vertical dimension (OVD) and then restoring the maxillary and mandibular teeth was chosen by the patient among the treatment options. At the beginning of treatment maximum bite force of patient was measured. Then an occlusal splint was provided to evaluate the adaptation of the patient to the altered OVD. Full mouth rehabilitation with metal ceramic restorations was made. After the completion of full mouth restoration, bite force measurement was repeated and patient exhibited increased maximum bite force. Full mouth restorative treatment in a patient with Class III malocclusion could be an effective treatment approach to resolve esthetic concern and to improve masticatory function related to maximum bite force.

• 대한치과의사협회지
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• 제11권11호
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• pp.739-744
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• 1973

The author measured the vertical dimension and the distances from Trichion to Nasion of 825 Korean adults (414 of male, 411 of female) above 21 years of age by Willis gauge. The following results were obtained. 1) The distances from subnasale to the bottom of chin were 71.4mm in male and 68.7mm in female, and those from Trichion to Nasion were 70.4mm in male and 68.0mm in female. The former were longer than the latter, and the distances in male were longer than those in female. 2) The differences between the distances from Subnasale to the bottom of chin were 1.0mm in male and 0.7mm in female. The frequencies of percentages, in which differences between the distances mentioned above were 0±1mm, were 43.0% in male, 42.6% in female, and 42.8% in total. 3) With the matter of age and sex differences, the distances from Subnasale to the bottom of chin and those from Trichion to Nasion were increasing to 31-40 age group by age, but those had a tendency of decreasing in the late age in both sexes.

• 대한심미치과학회지
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• 제31권2호
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• pp.64-74
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• 2022

최근 치과 임상 영역에 디지털이 접목되면서 디지털을 활용한 임상 진료가 점차 일반화되어가고 있다. 현재까지의 디지털 치과진료는 구강스캔 등의 자료채득, 가이드를 활용한 수술, CAD CAM을 사용한 보철물 제작 등의 직접적인 부분에 다소 집중된 감이 있으나, 치과 진료의 시작인 진단 및 치료계획 수립 단계에서도 디지털의 활용은 큰 효용을 가지고 있다. 이번 증례에서는 전치부 수복을 위해 내원한 환자에게 구치부를 포함한 상악 전체의 수복을 이해시키고, 교합고경을 재설정하여 수복하는 과정의 가이드라인으로 사용한 digital mockup의 활용 예를 보고하고자 한다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제33권4호
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• pp.386-390
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• 2007

This is about the case of loss of multiple teeth and alveolar bone caused by trauma, which needed alveolar bone augmentation before implant treatment. Alveolar bone was reconstructed using iliac bone graft, and thereafter first implant surgery was followed by consolidation period of 3 months. Iliac bone resorption was observed at the time of implant placement. And that resorption was more in the horizontal dimension than in the vertical. We conclude that additional treatment planning(e.g. using alveolar distraction osteogenesis or tissue expander) should be considered besides bone graft for vertical alveolar bone augmentation. For both maxilla and mandible, prosthodontic treatment was carried out $4{\sim}5$ months after implant placement. To compensate alveolar bone deficiency, partial hybrid overdenture on maxilla and implant-supported fixed bridge on mandible were fabricated, and the total treatment was finished.

• 농촌지도와개발
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• 제19권3호
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• pp.527-550
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• 2012

This study is aimed to compare individualism and collectivism propensity of married immigrant women in a Korean rural area. By result of comparison on nationality, the level of collectivism was higher than it of individualism in every country, but the level of collectivism among the countries was no significant difference. The level of individualism among the countries was difference significantly, and the level of individualism of Chinese is most high but it of Japanese is most low. By logistic regression analysis the probability to be involved in the group that level of individualism is high was heightened as respondent have no religion or their's satisfaction on rural life increase. The level of horizontal propensity was higher than it of vertical propensity both individualism and collectivism. But the result of comparison on nationality, difference between horizontal and vertical propensity was no significant. Besides of these results, practical implications were discussed.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제29권3호
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• pp.233-240
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• 2007

Osteochondroma is a common benign tumor of the axial skeleton, especially the distal metaphysis of the femur and proximal metaphysis of the tibia. However, it occurred rarely on the facial skeleton. The coronoid and condylar processes have been considered to be the most common sites of occurrence for osteochondroma of the facial skeleton. The first treatment of osteochondroma is condylectomy, whereas extirpation was done by excision with condyle salvage. Condylectomy presents decrease of vertical dimension, jaw deviation, malocclusion. So, reconstruction is need. Methods of reconstruction are as follows: no reconstruction, condyloplasty, discectomy, costochondral graft, discplication or coronoidectomy, eminoplasty, alloplastic spacer placement, Le Fort I level maxillary osteotomy, extraoral and intraoral vertical ramus osteotomy. This is a case report of a 28-year old woman who had facial asymmetry, malocclusion and temporomandibular joint pain. We obtained moderate functional and cosmetic results with surgical removal of the osteochondroma by condylectomy and concomitant reconstruction of condyle by vertical ramus osteotomy with sliding technique.

• Computers and Concrete
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• 제33권6호
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• pp.689-706
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• 2024

This study is aimed at identifying structural element stiffness influence on vertical earthquake response of mid-rise R/C frame buildings. To this aim, a mid-rise RC building structure is designed as per the new Turkish Seismic Code for Buildings-2018, and 3D FE model of the building is established. Based on the established FE model, a total number of six buildings are considered depending on certain percentage increase in beam, slab, and column. The time-history response analyses (THA) are performed separately for only horizontal (H) and horizontal +vertical (H+V) earthquake motions to make a comparison between the load cases. The analysis results are presented comparatively in terms of the monitoring parameters of the base overturning moment (M_o), the top-story lateral displacement (d_L) and the top-story vertical displacement (d_V). The obtained results reveal that the base overturning moment and the top-story vertical displacement are affected by vertical earthquake motion regardless of the increase in the dimension of beam, slab, and column. However, vertical earthquake motion is not effective on the top-story lateral displacement due to no change between H and H+V load. The dimensional increase in either slab or beam leads to a considerable increase in the base overturning moment and the top-story vertical displacement while causing decrease in the top-story lateral displacement. In addition, the dimensional increase in column has a positive effect on the decrease in the monitoring parameters of the base overturning moment (M_o), the top-story lateral displacement (d_L) and the top-story vertical displacement (d_V).

• 대한치과보철학회지
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• 제51권2호
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• pp.119-124
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• 2013

과도한 마모를 보이는 환자는 광범위한 수복 치료를 필요로 하는 경우가 많다. 마모의 원인은 주로 교모에 의해 발생하나 이외에도 여러 가지 유발 요인이 있으며 치료 계획은 이러한 마모의 양상과 병인 분석에서 가장 먼저 시작되어야 한다. 발달된 저작근과 치조돌기, 높은 교합력을 보이며 수축 상태와 안정 상태의 근육길이 차이가 적어 악간 간격이 많지 않은 환자는 수직 고경 상실에 대한 평가와 수복물의 설계가 더욱 신중하게 이루어져야 한다. 치아 길이의 감소는 그에 상응하는 치조골 높이 신장에 의해 보상될 수 있으며 수직고경의 항상성이 유지되는 것이므로, 이 경우 수직고경의 섣부른 증가는 근피로감, 치아의 압하 및 통증, 보철물의 파절등을 초래할 수 있다. 본증례의 환자는 다수 치아의 마모와 이 악물기 습관이 관찰된 환자로, 수직고경의 증가를 동반하여 상악 무치악 부위는 아말감을 삽입한 가철성 국소의치, 상하악 유치악 부위는 고정성 보철물로 수복을 하였으며, 이에 기능적인 면과 심미적인 면에서 만족스러운 결과를 얻었기에 치험례를 보고하고자 한다.

• 대한치과보철학회지
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• 제60권1호
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• pp.63-70
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• 2022

구치부 치아 상실을 동반한 치아 마모는 불규칙한 교합평면, 과도한 전치부 마모와 같은 특징적인 양상을 보인다. 적절한 구치부 지지를 부여하고 조화로운 전방유도와 교합평면을 설정하는 치료 방법이 추천된다. 본 증례 보고의 환자는 치아의 병적인 마모가 관찰되고 하악 구치부 치아가 상실되었다. 또한, 골다공증 병력과 Ibandronate 주사 치료와 관련된 골괴사증의 위험성을 인지하고 수술적 치료를 거부하였다. 본 증례에서는 마모된 잔존치를 수복 공간 확보를 위해 수직 고경 거상을 동반한 완전구강회복술로 수복하고, 하악 무치악부는 양측성 후방연장 국소의치로 수복하였다. 면밀한 진단을 통해 수복 계획을 수립하고, 이를 바탕으로 지대치 형성 후 임시 보철물 상태로 적응 기간을 거쳐 최종 보철물 제작하였다. 심미적, 기능적으로 만족할 만한 결과를 얻을 수 있었고, 구강 위생관리 및 교합 안정성을 확인하기 위해 정기적으로 내원하도록 하였다.

• 구강회복응용과학지
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• 제22권1호
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• pp.37-53
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• 2006

Purpose: The purpose of this study was to investigate the influences of the jaw dimension on the bone stress. Materials and Methods: Root analogue implant of Frialit-2 Synchro model in the jaw bone of various thickness from 8mm to 13mm were modelled axisymmetrically for a series of finite element analyses. As load conditions, non-axisymmetric lateral load of 20N and an oblique load of 50N, as well as an axisymmetric vertical load of 50N were taken into consideration. Results: The cervical area of implant under the axisymmetric load and the base cortical bone under the non axisymmetric load condition were the areas of main concern where the higher level of stress were likely to be obtained. Conclusion: The results indicated that at the two concerned areas drastically different stress distribution could take place as a function of the load conditions. Under the vertical load, the lower level of stress was observed for the narrow jaw bone at the cervical cortical bone whereas stress at the base cortical bone remained virtually unchanged. Under the non axisymmetric load condition, however, the stress at the base cortical bone increased very rapidly as the jaw bone width increased without inducing any significant change in the stress level at the cervical area.