楔状缺损需充填和根管治疗的每百人待治疗牙数分别为289.81和10.20； 磨损需脱敏治疗的每百人待治疗牙数为170.20。
The numbers of the teeth needed for treatment per hundred people were 289.81 for filling, 10.20 for root canal therapy, and 170.20 for desensitization treatment.
方法牙本质过敏的患牙10 0颗，分为两组，一组用半导体激光治疗，一组用常规氟化钠脱敏。
Methods Semiconductor laser was compared with conventional NaF method for the treatment of 100 teeth with typical hypersensitive dentine which were divided into two groups.
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