Objective To observe the effect of underground part-obturated environment on human health.
目的观察半密闭地下环境对健康的影响。
2
Most of the current CRM systems are based on C/S architecture, which are obturated, lack of flexibility and highly costing to implement.
国内外现有的CRM系统以C／S架构为主，柔性差，开放性低，而且实施成本高；
3
Objective To evaluate the apical sealing ability of obturated root canals prepared hand ProTaper with stainless steel K files in simulated resin root canals.