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우재선,김교한 대한치과기재학회 2000 대한치과재료학회지 Vol.27 No.1
The purpose of this study was to compare the bond strength of single bottle type dentin bonding systems to conventional dentin bonding systems and to evaluate the relationship of the hybrid layer to the shear band strength of single bottle type dentin bonding systems. The results were as follows; 1. Mean shear bond strengths of single bottle type dentin bonding systems ranged from 12,48±2.63 MPa for One-Step to 16.71±4.59 MPa for Optibond Solo, comparing 19.14±4.84 MPa for Scotchbond Multi-Purpose Plus of conventional adhesive system. 2. Single bottle type dentin bonding systems produced hybrid layers similar in morphology to the convention adhesive system. 3. The thickness of the hybrid layers were 2∼3 ㎛ for EG Bond, One-step, and Prime&Bond 2.1, 3∼5 ㎛ for Optibond Solo and Single Bond. 4. The thickness of the hybrid layer of Scotchbond Multi-Purpose Plus which is one of conventional adhesive was 6∼8 ㎛. 5. In the fractured surface, resin tags, resin cohesive fracture and dentin cohesive fracture were observed. 6. The relationship of the hybrid layer and the shear bond strength was confirmed.
담낭암 성차에 관한 절제가능성 및 조직병리학적 예후-국내 다기관 연구
박양태,강진형,김재선,정민규,김성훈,조재희,우상명,이경주,김의주,김효정 대한췌장담도학회 2022 대한췌담도학회지 Vol.27 No.3
Background/Aim: In gallbladder cancer (GBC), gender differences in incidence and mortality rates have been reported with geographic variation. However, there is little known about sex-related difference in GBC prognosis. This study compares prognostic factors according to gender for GBC. Methods: We searched clinicopathological factors in all stages of 952 GBC patients from seven medical centers in Korea. A total of 927 patients were enrolled and surgery with curative resection was performed in 499 patients. Results: Carbohydrate antigen (≥37 U/mL) was a significant prognostic factor in both females and males (odd ratio [OR], 4.30; 95% confidence interval [CI], 3.13-5.89; p<0.001). Age was a significant factor only in female patients, elderly patients were associated with low resectability and the likelihood of T-stage >2; an independent predictor of poor prognosis via multivariate analysis (OR, 1.03; 95% CI, 1.01-1.05; p=0.005, OR, 1.05; 95% CI, 1.02-1.08; p=0.002). Body mass index (BMI) also showed gender difference, and lower BMI (≤25 kg/m2) was the significant good indicator of multivariate analysis for lymph node metastasis in female patients (OR, 0.42; 95% CI, 0.23-0.77; p=0.005) but, the significant poor indicator of univariate analysis for advanced T-stage in male (OR, 2.79; 95% CI, 1.40-5.54; p=0.003). Conclusions: These results suggest that there is a possibility of gender difference in GBC prognosis. Age and high BMI were poor prognostic factors for curative resection for female GBC patients.