ABSTRACT
OBJECTIVE:To explore the strategy of competitiveness improvement of retail chain pharmacies in China under the impact of pharmaceutical electronic commerce. METHODS:The development of pharmaceutical electronic commerce in China is in-troduced. Major problems of retail chain pharmacies development are analyzed to put forward the strategy for promoting their com-petitiveness. RESULTS & CONCLUSIONS:Pharmaceutical electronic commerce develops rapidly in China,and there are 3 major operation mode,ie. B2C online pharmacy,third platform and B2B purchase platform. The development of pharmaceutical electron-ic commerce greatly influences the further development of chain pharmacy. Considering rising costs,medical insurance policy ad-justment and brand drug profits lowering,retail chain pharmacies must reposition its value;turn into big health(including diversi-fied category structure,chronic disease management and in-depth professional service);regard O2O E-commerce model as strate-gic move for rapid scale expansion in the future,so as to improve customer loyalty and long-term competitiveness.
ABSTRACT
Objective: To study the effect of the sharp marginal ridge of the abutment on the casting of the fit metal full crown in dental preparation.Methods: We established the models of the designed crown-based-teeth(American Dental Association style,No2 trail) with a sharp or smooth marginal ridge,and cast a metal crown for each model.We injected silicone into the crown and immediately fixed it onto each model.Then we took out the solidified silicone and measured its thickness between the crown and the occlusal face of each model.The thinner the thickness,the better the fitness.Results: The average silicone thickness was 250 ?m in the smooth marginal ridge group and 1 660 ?m in the sharp marginal ridge group,with significant difference in between(P