1. 王冠：Airplane 飞机 | Crowns 王冠 | Two triangles 两个三角形

2. 牙冠：Crowns 牙冠(2) | CHILDREN'S DENTISTRY 儿童牙科(13) | HIGH TECH高科技(3)

3. 各类冠修复体：高嵌体 Onlay | 各类冠修复体 crowns | 工作模型 Master cast

4. 工作成败要看结果：?2201.?The?effect?speaks,?the?tongue?needs?not.?事实胜于雄辩. ? | 2202.?The?end?crowns?the?work.?工作成败要看结果. ? | 2204.?The?evils?we?bring?on?ourselves?are?the?hardest?to?bear.?自作孽不可活. ?