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      • KCI등재

        X-선상에 의한 선천성 치아이상의 발생빈도에 관한 통계학적 연구

        崔善鈺,李鐘甲 大韓小兒齒科學會 1980 大韓小兒齒科學會誌 Vol.7 No.1

        This study was undertaken in order to observe the prevalence of congenital dental anomalies especially that of oligodontia and supernumerary teeth in 1024 children at age from 4 to 14 years, through history taking, oral examinations, roentgenographic observations of subjects, and statistic analysis was made. The following results were obtained: 1. The prevalence of oligodintia in 1024 children was 6.45±.8 percent with a total of 122 teeth absent in sixty-six subjects, excluding 3rd molars, and most of children (86.4%) who have congenitally missing teeth showed abscence of one or two teeth individually. 2. The teeth most frequently absent were the mandibular second premolar, maxillary second premolar, maxillary lateral incisor, mandibular central incisor, and mandibular lateral incisor in order. 3. There was no statistically significant difference found in tooth abscence in the following comparisons. · Male vs Female · Bilateral vs Unilateral · Maxilla vs Mandible · Right vs Left 4. The prevalence of supernumerary teeth in 1024 children was 4.79±.67 percent with a total of 59 supernumerary teeth in forty-nine subjects, all of children who have supernumerary teeth showed one or two supernumerary teeth individually. 5. Statistically significant difference was found in supernumerary teeth in the comparison of male vs female, and they were more frequent in male.

      • KCI등재

        혼합치열기와 영구치열기간의 치열궁변화 예측에 관한 통계학적 연구

        崔善鈺 大韓小兒齒科學會 1986 大韓小兒齒科學會誌 Vol.13 No.1

        The purpose of this study was to predict mandibular anterior crowing changes between mixed and early permanent dentition. For this study, dental casts were taken from 61 children (male 28, female 33) longitudinally, age from 6 to 13 year who have an Angle's class Ⅰ relationship. Preeruptive tooth inclination to the occlusal plane were measured through matched lateral mandibular view film with cast. The subject divided to three stages; stage Ⅰ- eruption of mandibular central incisors and first permanent molars, stage Ⅱ - eruption of mandibular later incisors, stage Ⅲ - eruption of mandibular canines, first and second premolars. In order to predict anterior crowing changes, correlations and multiple regression analysis was taken in preeuptive tooth inclination and parameters of dental casts. The results were as follows. 1. Intercanine width of lower arch increased between stage Ⅰand stage Ⅱ(P<0.05), and intermolar width (6-6) and 1-C length in lower arch increased (P < 0.05) between stage Ⅱ and stage Ⅲ, and reverse in 1-6 lower arch length (P<0.05). 2. Statistically significant sex difference was found in intercanine width of lower arch (stage Ⅰ), preeruptive lower first premolar angle to acclusal plane (Stage Ⅱ), and 1-6 length (Stage Ⅲ). They were larger in male (P<0.05). 3. Crowding changes (Stage Ⅰto Ⅲ) appeared to be highly correlated with arch perimeter (r=0.78, P <0.01). 4. The regression equation for predicting mandibular anterior crowing changes between stage Ⅰand Stage Ⅲ was as follows. Y= -0.39X₁-0.07X+₂17.5 multiple R= 0.922 sig. F= 0.0013 Y; mandibular anterior crowing changes between Stage Ⅰand Ⅲ X;₁ mandibular arch perimeter from distal surface of lower right primary lateral incisor to mesial surface of lower right first permanent molar (Stage Ⅰ). X;₂ radiographic lower second molar angle (Stage Ⅰ).

      • KCI등재

        아동의 친구 간 갈등해결전략과 인터넷 중독 위험성

        최선 ( Sun Ok Choi ) 대한아동복지학회 2009 아동복지연구 Vol.7 No.1

        연구에서는 거의 매일 인터넷을 접하는 아동이 인터넷 중독 위험성에 노출되는 것으로부터 보호할 수 있는 변인으로 아동의 친구 간 갈등해결전략에 대한 탐색이 이루어졌다 아동의 친구 간 갈 등해결전략의 하위 변인들 중 인터넷 중독 위험성과 관련된 변인은 무엇이며, 그것들이 어떠한 영향 을 미치는지 살펴보고자 하였다 아동의 친구 간 갈등해결전략이 인터넷 중독 위험성에 미치는 영향 을 병확하게 규명하기 위해 인터넷 중독 위험성에 대한 아동 개인적 변인(성별, 부모학력, 경제수준, 학교성적)의 영향에 대한 탐색도 이루어 졌다 본 연구에서 나타난 결과 아동의 개인적 변인에 따른 인터넷 중독 위험성음 살펴본 결과 성별과 학교성적에 따라 차이가 있는 것으로 나타났으며 아동의 친구 간 갈등해결전략이 인터넷 중독 위험성에 미치는 영향을 살펴본 결과 친구 간 갈등해결전략의 하위변인 중 절충 및 협력 전략과 지배 전략이 아동의 인터넷 중독 위험성을 예측하는 변인으로 나 타났다. 아동의 개인적 변인과 친구 간 갈등해결전략을 종합적으로 살펴본 결과, 아동 개인적 변인의 영향력을 제거하고서도 친구 간 갈등해결 전략 하위변인 절충 및 협력 전략과 지배 전략이 인터넷 중독 위험성을 예측하는 변인으로 나타났다. 즉, 아동의 성별이 남아이고 자신이 지각한 학교성적이 하위권이며 친구와 갈등상황에서 절충 및 협력 전략을 적게 사용하고 지배 전략을 많이 사용할수록 인터넷 중독 위험성에 더 노출 되어 있음을 얄 수 있었다 이러한 연구결과를 통해 인터넷 중독에 대 한 예방프로그램이나 치료를 계획하는데 기초 자료를 제공하자 한다 또한 아동이 친구와 갈등상황에 서 효과적인 방식으로 갈등을 해결할 수 있게 하며 문제 상황에서 적절한 해결방법을 찾아 인터넷 중독에 노출될 위험을 줄이는데 도움을 주고자 한다. This research examined children`s conflict resolution strategies in their friendship as a variable which can protect their exposure to risk of internet addiction. The Major findings of this study are as follows. First, examination on risk of internet addiction according to children`s personal variables proved that it was affected by gender and school work achievement. Second, it was proved that compromise between subordinate variables of conflict resolution strategies in their friendship, compromising -integrating strategy, and dominating strategy are the variables which estimate risk of children`s internet addiction. Third, general research on children`s personal variables and conflict resolution strategies proved that compromise between subordinate variables of conflict resolution strategies in their friendship, compromising-integrating strategy, and dominating strategy are the variables which estimate risk of children`s internet addiction even regardless of effect of their personal variables.

      • KCI등재후보
      • KCI등재

        광학활성의약품 개발과정에서의 입체화학적 문제

        최선,정성희,엄소영,정서정,김주일,정수연 한국약제학회 2005 Journal of Pharmaceutical Investigation Vol.35 No.1

        Numerous drugs are chiral because they possess one or more chiral centers. Enantiomers may differ in their pharmacokinetic, pharmacological and toxicological properties. However, the significance of stereochemistry of drugs in their therapeutic uses has received relatively little attention until recently. The US FDA issued a guideline on stereoisomeric drugs in 1992, and the European agency describes tests for new drug substances which are optically active in an ICH(International Conference of Harmonization) guideline. According to the guidance, enantiomers may differ in their pharmacokinetic. pharmacological and toxicological properties. Therefore, in this paper, we examined the recently published Canadian guidance, stereochemical issues in chiral drug development, which will be references to make a guidance on stereochemical issues in chiral drug development in Korea.

      • KCI등재

        초등학생의 스트레스 대처를 위한 독서치료 사례연구

        최선,한윤,Choi, Sun-Ok,Han, Yoon-Ok 한국비블리아학회 2006 한국비블리아학회지 Vol.17 No.1

        The bibliotherapy program was carried out in the 'S' elementary school in Kyonggi province. Korea for the fourth grader children in order to measure the grade of stresses which they experience and coping styles. and to find what kind of changes in terms of the grade of stress and coping styles over stress through the bibliotherapy program. Especially, it was going to understand elementary school children's stresses and coping styles, and verify effects of the bibliotherapy program as a device of helping amicable adoption for the various stress which they experience, and they come to experience.

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