窝洞指采用牙体外科手术方法去除龋坏组织，并按要求制备成洞形。窝洞具有一定的形状，能容纳和支持充填材料，达到恢复牙齿外形和功能的目的。
的：评价牙科电子麻醉在窝洞制备和开髓过程中的镇痛效果。
Objectives: To evaluate the analgesic effect of electronic dental anesthesia(EDA).
“你们知道，”父亲接着说，“在这鬼窝窝洞里，冷得象狗一样。”
"Do you know," went on the father, "that it's beastly cold in this devil's garret!"
采用图象分析仪观察二期处理光固化复合树脂嵌体与牙窝洞壁间和窝洞底间的密合度。
This experiment investigated the microleakages between secondarily treated inlay and tooth cavity walls or between inlay and liner by means of image analysis instrument.
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