• Korean journal of communication and information
• /
• v.33
• /
• pp.7-52
• /
• 2006

The purpose of this study is to analyze two mechanisms appeared in Educational crisis by Korea mass media, which are discoursive constitution of meaning and the mechanism for discoursive constitution of subject. The analysis will classify ideological characteristics and conflict opposition of conservative and progressive media. As background for chosen case study, language structure and combination methods in Theory of Discourse of M. $P\hat{e}cheux$ will be discussed. Specifically, choices and combination methods of the chosen language structure-the preconstructed, articulation, mechanism, and structuring method of ideology will be main topics. Following case study will be Chosun and Hankyoreh newspaper, each representing conservative and progressive side. Discussion regarding educational crisis news, such as "Collapse of Classroom", "Collapse of School" is selected, and analyzed in terms of insight story, cause and responsibility, and taken measures.

• The Journal of Korean Academy of Prosthodontics
• /
• v.60 no.4
• /
• pp.320-329
• /
• 2022

Physiological wear of occlusal surface is inevitable throughout the lifetime, and considered to be normal. Pathologic wear, however, may cause fatal damage to the occlusal surface and destroy esthetics and proper anterior guidance. In such cases, rehabilitation of occlusal wear should be followed by thorough evaluation and diagnosis. In this present case, severe occlusal wear was found in the labial surfaces of mandibular anterior teeth and palatal surfaces of maxillary anterior teeth. Occlusal vertical dimension was evaluated and decided to be regained due to insufficient amount of restorative space. After determining new occlusal vertical dimension, diagnostic wax-up is usually performed to continue prosthodontic treatment. In this case with collapsed occlusion and loss of occlusal vertical dimension, conventional diagnostic wax-up was replaced with various digital devices. Diagnostic wax-up was digitally performed in the software and provisional prosthesis was fabricated with digital tools. With verification with provisional prosthesis, the entire dentition was rehabilitated with newly set occlusal vertical dimension and proper anterior guidance.

• The Journal of Korean Academy of Prosthodontics
• /
• v.59 no.2
• /
• pp.210-219
• /
• 2021

Excessive teeth wear can lead to reduced chewing efficiency, occlusal plane collapse, and facial changes. Full mouth rehabilitation with a change in vertical dimension may cause pain in the temporomandibular joint, masticatory muscle and teeth, so an accurate diagnosis and treatment plan is required. In this case, a 69-year-old man had excessive teeth wear with a loss of posterior support. We evaluated the degree of adaptation to the increased vertical dimension with the removable occlusal splint and provisional restoration. We report this case because the treatment result has been functionally and aesthetically satisfactory by providing stable anterior guidance, proper posterior teeth disclusion, and even contact of all teeth in centric occlusion.

• The Journal of Korean Academy of Prosthodontics
• /
• v.62 no.1
• /
• pp.82-94
• /
• 2024

This is a case report of complete mouth rehabilitation in a patient with generalized attrition and loss of posterior support. After analyzing the condition of the temporomandibular joint, multiple implants were placed to restore collapsed occlusion. Fixture/abutment level intraoral scanning was done instead of using conventional impression materials which entail multiple bite registration for cross-mounting. A 'jaw motion tracking'device, 'digital face-bow transfer', and 'double scan technique' which enables duplicating temporary restoration to definitive restoration were used to fabricate definitive prostheses. By using various digital techniques, complete mouth rehabilitation was done with minimal chair time in a patient with unstable occlusion.

• The Journal of Korean Academy of Prosthodontics
• /
• v.57 no.4
• /
• pp.439-447
• /
• 2019

The distance between the natural teeth and the implants is an important factor in preserving the periodontal tissues and esthetics. And abnormal positional displacement and tilting of the teeth during restorative procedure may require intentional root canal treatment and may affect masticatory function. This report is to present a successful full mouth rehabilitation of a patient with uneven dentition and collapsed occlusion using orthodontic and implant treatment. The patient had no symptoms or discomfort of temporomandibular joint disorder such as pain or sound. The orthodontic treatment was continued until implant provisional prosthesis delivery. And the vertical height of occlusion was elevated 2mm on anterior basis for anterior teeth protection and esthetics. After the orthodontic treatment, the implant abutments and natural teeth were finally restored with porcelain-fused-to-metal crowns and bridges. Satisfactory function and esthetic outcomes are observed after 6months of follow up.

• Journal of The Korean Association of Information Education
• /
• v.5 no.1
• /
• pp.119-129
• /
• 2001

The present school is faced with the crisis of school collapse and classroom collapse under a bureaucratic and authoritative atmosphere. The method to respect individual opinions and to discuss with open mind is needed. The study is to establish the system of SDR and to make it possible to express the wholesome and various ideas of members by using it. SDR is related with the interruption DB to stop up unsound messages. The result of this study shows that SDR is very helpful to make a culture of discussion in a school in the respect of enlarged chances for teachers and students to participate, active and open participation, changing of attitude in achieving group goal and formation of desirable culture of discussion.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.37 no.3
• /
• pp.157-170
• /
• 2021

Loss of posterior bite support might cause unstable occlusal relationship and when the mandible slides forward in the centric or habitual occlusion, excessive load is applied to the anterior region followed by causing the occlusal plane to collapse or leading to a decrease in occlusal vertical dimension. In addition, disorder of temporomandibular joint function may occur. The inter-dental arch discrepancy causes a mismatch in the vertical and horizontal overlap of the anterior and posterior regions. The deep bite in the anterior region and the scissor bite in the posterior region cause unstable occlusal contact and insufficient occlusal contact area. This report was to rehabilitate a patient with above-mentioned complex problems. Physiologic adaptation to increased vertical dimension and new occlusal plane were evaluated using provisional prostheses, and definitive prostheses was fabricated using cross-mounting technique. Stable occlusion, harmonious teeth overlap and adequate occlusal plane were established, so functionally and aesthetically satisfactory results are obtained.

• The Journal of Korean Academy of Prosthodontics
• /
• v.61 no.4
• /
• pp.293-307
• /
• 2023

Jaw motion tracking, which is introduced in recent case reports, is a method which records the patient's individualized pathway of the mandibular movements along with facebow transfer, and reproduces the information in the virtual space of computer-aided-design/computer-aided-manufacturing (CAD-CAM) software. In this present case, a collapse of the occlusal plane was observed, due the loss of posterior teeth for a long period. Full-mouth rehabilitation with an increase in the occlusal vertical dimension was planned. First, the patient's mandibular movements were recorded on the newly established jaw relation by jaw tracking, and this information was assembled with the patient's intraoral data to create a virtual patient. Implant planning and diagnostic wax-up was done on the virtual patient, leading the fabrication of the provisional prosthesis. On the newly established jaw relation with an increase in the occlusal vertical dimension, canine guidance of the provisional prosthesis was checked. Finally, the provisional prosthesis was carried out to the definitive prosthesis. Using the advantages of the technologies in the digital dentistry, the patient was satisfied with the function and the esthetics after the treatment.

• Journal of the Korean Society for Library and Information Science
• /
• v.38 no.1
• /
• pp.247-261
• /
• 2004

According to several researches and news reports on the lottery system for a school entrance, the private education fee, lower quality of education and classroom crisis at our real education settings are serious. The author analyses that those problems are not because of the lottery system for a school entrance itself, because of not changing the lecturing to all the students in a class into proper teaching and learning method for school condition regards to the lottery system changed 30 years ago. The lottery system makes that the different levels of students are in one class. The author recommends changing the general lecturing into the teaching and learning method by using the information processing models which are made for individual study. She also interprets the synthesis level of a information processing model for the use of teachers and librarians. The synthesis level is most ambiguous process for students when they organize the information gathered into a report.

• The Journal of Korean Academy of Prosthodontics
• /
• v.61 no.1
• /
• pp.33-43
• /
• 2023

Pathological wear across the entire dentition causes problems such as collapsed occlusal plane, reduced vertical dimension, anterior premature contact, inadequate anterior guidance, and tooth migration, thereby induce symptoms such as temporomandibular joint disorder, reduced masticatory efficiency, and tooth hypersensitivity. For the treatment of patients with excessive wear, evaluation of vertical dimension should be preceded along with analysis of the cause. The patient in this case was a 45-year-old female with a history of orthognathic surgery. Through clinical examination, radiographic examination, and model analysis, overall tooth wear, interdental spacing in the anterior maxillary region, retruded condylar position, and insufficient interocclusal space for prosthetic restoration were confirmed. Full mouth rehabilitation with increased vertical dimension was planned, the patient's adaptation to the new vertical dimension was evaluated with a removable occlusal splint and temporary prosthesis, and cross-mounting was performed based on the temporary restoration to fabricate the definitive zirconia prosthesis, maintaining the adjusted vertical dimension. It showed satisfactory functional and esthetic results through stable restoration of the occlusal relationship.