• Korean Journal of Child Studies
• /
• v.33 no.2
• /
• pp.129-144
• /
• 2012

The purpose of this study was to focus on the effects of a mother's characteristics and self-awareness as they impact upon parenting stress, with the additional aim of creating an appropriate structural equation model. The subjects of the study comprised 2078 newborn children (and their mothers) taken from the $1^{st}$ year of the Korea Children's Panel. The results of the research are as follows. The mother's feeling of pregnancy, her income activity, religion, and educational level impacted significantly upon self-awareness, whereas employment status did not. In addition, the feeling of pregnancy and income activity had a effect on parenting stress both directly and indirectly. Educational level and religion impacted on parenting stress indirectly through self-awareness. Both employment status and self-awareness were found to have impacted on parenting stress directly. The implication of these findings are also discussed.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.24 no.3
• /
• pp.651-659
• /
• 1997

This report presents a case of adolescent patient who had multiple impacted teeth and no systemic disease, and was treated with removable and fixed orthodontic appliances. The results obtained through these cases were summarized as follows : 1. Even in the case without systemic disease, there can be the delayed eruption of multiple teeth 2. If the root formation is not completed, root have no excessive curvature, axial inclination of the tooth is not excessive, and there is eruption space, the tooth can be induced to normal occlusion. 3. Since esthetically proper occlusion and dentition was acquired by recovery of the impacted teeth to normal occlusion, the prosthodontic treatment after extraction of the impacted teeth was less needed. 4. This treatment brought psychological stability to pubertal patient who was interested in his facial profile.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.24 no.3
• /
• pp.710-717
• /
• 1997

Autotransplantation is the transplantation of embeded, impacted, or unerupted tooth, into extraction socket or surgically prepared socket in the same individual. Clinically, successful autotransplantation must show radiolucent space(periodontal ligament space) between transplanted tooth and supporting bone, lamina dura, no root resorption, no ankylosis, no inflammatory change, and physiologic tooth mobility. It is important that procedure is atraumatic, and the instruments should not contact the root surface during procedure. We performed autotransplantation of impacted mandibular canine that transversely located beneath the apices of the mandibular incisors with uncompletely developed apex. In radiographs and clinical evaluation, this transplant showed successful clinical finding except irregularity of mesial root surface after 14 months. It is conclued that transplantation of canine with $\frac{1}{2}{\sim}\frac{3}{4}$ root development provides a good chance of pulp survival, limited risk of root resorption and ensures sufficient final length, and is thus recommended.

• Asia-Pacific Journal of Business
• /
• v.7 no.1
• /
• pp.43-57
• /
• 2016

This study examined the relationship between determinant factors of FDI and management performance, and tested moderating effects by competitive strategy. Questionnaires were gathered from 113 respondents, but only 92 valid copies were analyzed through SPSS WIN 18.0. The major empirical results are as follows: In hypothesis 1, Firm-Special Advantage impacted on Management Performance strongly, Internal Advantage impacted on Management Performance strongly, and Locational Advantage impacted on Management Performance strongly. In Hypothesis 2, the moderating effects by competitive strategy on the relationship between determinant factors of FDI and management performance were tested through multiple regression. The result of the moderating effects by competitive strategy were found to be insignificant. Implications of the finding as well as the limitations of this study are also discussed.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.22 no.2
• /
• pp.52-59
• /
• 2014

Front impacted SUV vehicle shows that the front parts of side members are collapsed by the bending due to the transverse load exerted at the end of side members. Side member models were impacted with various angles in order to study the crash performance according to the impact angle. Even for the small impact angle of $10^{\circ}$, crash performance seriously deteriorated and the deformations for impact angle $15^{\circ}$ were similar to those from the front body impact analysis. In addition, the angled front impact analysis for the straight member with hat section was carried out and the effects of inner reinforcement shape on crash performance was investigated.

• Imaging Science in Dentistry
• /
• v.43 no.4
• /
• pp.303-308
• /
• 2013

This report describes a 31-year-old female patient with six impacted teeth. The crowns of the impacted teeth were surrounded with cyst-like lesions with a mixed internal structure and well-defined cortical borders. Microscopic examination of the specimen obtained from the follicle of the left mandibular third molar tooth revealed loose to moderately dense collagenous connective tissue with abundant calcified material and sparse epithelial islands. A diagnosis of multiple calcifying hyperplastic dental follicles was made.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.23 no.4
• /
• pp.859-866
• /
• 1996

It is a relatively rare clinical experience to see the impacted first molar. The first permanent molar is the key in normal occlusion. Abnormal eruption of the first permanent molars would inflict normal development of dental arches and give rise to abnormal root resorption of the adjacent teeth. Therefore, the abnormally erupted first permanent molars should be detected and treated early in order to obtain proper occlusal guidance in mixed dentition period. This report presents two cases on distally tilted and impacted mandibular first molars which were treated by surgical exposure and orthodontic traction using facial mask.

• Journal of Korean Academy of Oral and Maxillofacial Radiology
• /
• v.11 no.1
• /
• pp.51-58
• /
• 1981

The author examined 515 full mouth roentgenograms stored in the Dept. of Oral Radiology, College of Dentistry, Seoul National University. For evaluating the efficiency of the routine full mouth roentgenogram, each of abnormal conditions such as impacted teeth, missing, caries, crown, filling and apical lesions was observed. The results obtained were as follows; 1. Among 14.420 teeth examined, missing teeth were 174, impacted 16, caries 161 and treated 1,162. 2. The incidence of impacted third molar was close to 18.7 percent and the incidence of missing third molar was about 33.4 percent. 3. Among carious and treated teeth, 178 teeth (1.2%) were needed observation of root apex. And of these teeth, 119 teeth 0.8% were observed with apical lesion. 4. There is a considerable relation between the incidence or size of apical lesion and the accuracy of endodontical treat. 5. Among the teeth with apical lesion, upper and lower first molars were most frequent (about 41%), upper and lower canine were rare (about 1.7%).

• Journal of Fashion Business
• /
• v.11 no.3
• /
• pp.97-105
• /
• 2007

The purpose of this study was to investigate SCM performance of textile fashion business in a competitive market environment. For the methodology of this study, the questionnaire was developed based upon the literature. 230 questionnaires were distributed to the experts who operate SCM in textile fashion firms. The returned usable 149 were analyzed by SPSS10.0 with multiple regression analysis and Cronbach's Alpha for internal consistency and reliability. The results of this study were as follows: The SCM performance of the textile fashion firms was affected by information system, business environment, and partnership in a descending order. Analyzing on the business environment, CEOs' concern about incorporating SCM and the degree of assistance from government and textile fashion federation impacted the performance of SCM in a descending order. For information system, standardized computerization, information sharing, and computerization with infrastructure on intra/inter business impacted the SCM performance of the firms in a descending order. For partnership, strategic alliance, openness about corporate culture, and credibility of partnership impacted the SCM performance of the firms in a descending order.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.48 no.5
• /
• pp.326-328
• /
• 2022

Impacted mandibular third molar removal is the most common procedure performed by oral and maxillofacial surgeons. An array of alternative procedures have been suggested, like operculectomy in cases of pericoronitis and coronectomy in certain cases. However, these procedures pose several disadvantages, and we propose a relatively non-invasive 'straight lift technique'. This technique is specifically useful in straightening abnormally positioned mesioangular third molars as a substitute of complete removal. This can improve tooth function, eliminate the need for surgical intervention, and reduce the risk of complications associated with third molar removal.