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치과의원 환자들의 가철성 의치 사용에 대한 만족도 분석
반용석,송근배,정성화,조광헌 대한구강보건학회 2001 大韓口腔保健學會誌 Vol.25 No.1
The purposes of this study were to investigate the satisfaction of use of removable denture related to general, functional and esthetic factors among dental patients in the private dental clinics in Taegu, Korea and to establish the structure relationships of dental treatment satisfaction. Two hundred one patients who consented with this survey were selected and examined their anal status. Satisfaction degree was estimated by means of self-developed questionnaires, filled out by face-to-face interview. Collected data were analyzed by t-test, one-way ANOVA, chi-squared test, regression analysis and path analysis using statistical data analysis software SAS 6.12 and LISREL 8.12. The obtained results were as follows: 1. The satisfaction degree of four subscales was highest in esthetic factor(3.17±0.36), denture retention factor(3.10±0.60), general treatment satisfaction factor(2.94±0.56), and masticatory function factor(2.90±0.68) in descending order. It was appeared that patients were generally satisfied with all four factors. 2. By the result of multiple regression analysis, three subscales represented 35.5% of the variation of the general treatment satisfaction(R²=0.3535), and the satisfaction of masticatory function, denture retention and esthetic function had significant effect on the general treatment satisfaction. 3. On the comparison between proportion of denture satisfaction and satisfactions of subscales, as the satisfactions of general treatment, masticatory function and denture retention were increased, the proportion of denture satisfaction was significantly increased, but there was no significant relationship between the satisfaction of esthetic function and proportion of denture satisfaction. 4. The masticatory function factor, denture retention factor and general satisfaction of treatment factor were directly affected on the denture satisfaction, but esthetic factor was affected indirectly on the denture satisfaction as a result of path analysis.
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Laminate Veneer용 도재의 표면처리가 치질과의 결합강도에 미치는 영향
반용석,정현곤,홍순호 慶北大學校 齒科大學 1991 慶北齒大論文集 Vol.8 No.1
The Purpose of this study was to evaluate the effect of the shear bond strength between porcelain laminate veneer and enamel according to the surface treatment and thermocycling. Group Ⅰ, as a control group, was sandblasted only; group Ⅱ was sandblasted and etched; group Ⅲ was snadblasted and silane treated; and group Ⅳ was sandblasted, etched and silane treated. A porcelain block was placed onto the etched enamel under a 150g static load and the bonded site was light-cured from 4 directions for 1 minute each. The 72 bonded specimens were stored in water at 37℃ for 1 day. Half of each group were themocycled at 4℃ and 60℃ for 100 cycles with a dwelling time in each bath of 1 min. Following thermocycling, the specimens were installed in an Instron universal testing machine and the shear bond strength was measured. After the specimens were fractured, the fractured surfaces were examined with SEM. The obtained results were as follows; 1. The shear bond strength of the sandblasted and etched and silane treated group(Group Ⅳ) was the strongest of all, and the shear bond strengths between the snadblasted group (Group Ⅰ) and the sandblasted and silane treated group (Group Ⅲ) were not statistically different(p>0.05). 2. When the shear bond strength was measured after thermocycling, only the sandblasted, etched and silane treated group (Group Ⅳ) was statistically different (p<0.05). 3. The scanning electron microscopic views of the fractured surfaces show more irregularities and more resin fragments in the etched group than in the unetched group. 4. The scanning electron microscopic views of the fractured surfaces show a more delicate surface after thermocycling and after silane treatment than before thermocycling and before silane treatment. J. Kyungpook Nat. Univ Sch. Dent Vol.8, No.1, 141∼153, 1991.
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Laminate Veneer용 도재의 표면처리가 치질과의 결합강도에 미치는 영향
반용석,정현곤,홍순호,Ban, Yong-Seok,Chung, Hyun-Gon,Hong, Soon-Ho 대한치과보철학회 1991 대한치과보철학회지 Vol.29 No.1
The purpose of this study was to evaluate the effect of the shear bond strength between porcelain laminate veneer and enamel according to the surface treatment and thermocycling. Group I, as a control group, was sandblasted only; group II was sandblasted and etched; group III was sandblasted and silane treated; and group IV was sandblasted, etched and silane treated. A porcelain block was placed onto the etched enamel under a 150g static load and the bonded site was light-cured from 4 directions for 1 minute each. The 72 bonded specimens were stored in water at $37^{\circ}C$ for 1 day. Half of each group were thermocycled at $4^{\circ}C$ and $60^{\circ}C$ for 100 cycles with a dwelling time in each bath of 1 min. Following thermocycling, the specimens were installed in an Instron universal testing machine and the shear bond strength was measured. After the specimens were fractured, the fractured surfaces were examined with SEM. The obtained results were as follows : 1. The shear bond strength of the sandblasted and etched and silane treated group(Group IV) was the strongest of all, and the shear bond strengths between the sandblasted group(Group I) and the sandblasted and silane treated group(Group III) were not statistically different(p>0.05). 2. When the shear bond strength was measured after thermocycling, only the sandblasted, etched and silane treated group(Group IV) was statistically different(p<0.05). 3. The scanning electron microscopic views of the fractured surfaces show more irregularities and more resin fragments in the etched group than in the unetched group. 4. The scanning electron microscopic views of the fractured surfaces show a more delicate surface after thermocycling and after silane treatment than before thermocycling and before silane treatment.
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