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치조골이 흡수된 연결고정장치의 치근단주위에 발생하는 응력의 분석
제갈경섭,홍순호,조광헌 慶北大學校 齒科大學 1989 慶北齒大論文集 Vol.6 No.1
The purpose of this study was to evaluate the stress distributions to the splinted and non-splinted lower molars. In cases of level of the alveolar bone of the lower 1st and 2nd molar being resorbed gradually eight 2-dimensional photoelastic models were made : four models splinted and four models non-splinted. Ant resorbed level of the alveolar bone consisted of 0%, 10%, 30% and 50% in the axial direction of the roots. A vertical load of 80 lbs was applied to the central fossae of the 1st and 2nd molars simultaneously in each case. Two-dimensional photoelastic stress analysis was done, and the stress distribution areas were recorded and diagramed. The results were as follows : When the vertical load was applied to the fossae of the lower 1st moler and 2nd moler simultaneously, the patterns of stress distributions of splinted cases were more advantageous than those of nonsplinted cases. In the case of resorbed alveolar bone system the magnitude and direction of stress distributions was not different from the normal periodontium. However, stress distribution was slightly increased in the 50% loss of the alveolar bone. The stress distributions of splinted case were more distal direction than nonsplinted case.
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경북대학교병원 치과진료처 내원환자들의 진료만족도 및 관련요인에 관한 분석
송근배,제갈경섭,정성화,장현중 대한구강보건학회 1999 大韓口腔保健學會誌 Vol.23 No.2
The purposes of this study were twofold. One is to develope and examine the validity and reliability of self-developed dental satisfaction questionnaire. The other is to analyze the related factors of dental treatment satisfaction. Data for this analysis were gathered by 1,155 randomly selected samples who had visited division of dental infirmary of Kyungpook National University Hospital from March 2, 1998 to August 31, 1998. Among the final mailed sample of 910, 303 was returned (33.3%). The main questionnaire consisted of 45 items and each item was constructed using a five-likert response fomtat. The questionnaire was pretested (Cronbach's alpha=0.9577) before mailing and all collected samples were analyzed using the SAS 6.04. The obtained results were as follows: 1. The reliability and validity of this self-developed dental satisfaction questionnaire was favorable. The Cronbach's alpha value of this questionnaire was 0.9359, and the Cronbach's alpha values of subscale were 0.92 (recognition and trustworthiness), 0.83 (kindness), 0.77 (time), 0.75 (cost) and 0.75 (environment and facility). 2. The satisfaction ratio of all respondents was distributed from 24.84 (minimum) to 88.67 (maximum) and the average ratio was 55.21±0.51. The overall satisfaction mean scores of five subscales were 63.84±0.69 (kindness factor), 62.38±0.68 (recognition and trustworthiness factor), 55.31±0.74 (time factor), 51.51±0.61 (environment and facility factor) and 43.00±0.69 (cost factor). All respondents were generally satisfied with kindness of dental personnel and other staffs and recognition of hospital and trustworthiness of treatment, but the cost of treatment was most dissatisfaction factor in this survey. 3. The major factors which explain the recognition of hospital and trustworthiness of treatment were kindness and cost factors. The other four subscales accounted for 49% (R²=0.4868) of the variation in recoginition and trustworthiness factor as a result from multiple regression analysis.
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