In a recent lab test, photodynamic therapy killed 99.9 percent of the bacteria that cause gingivitis in -- 10 minutes. Clinical trials are scheduled for later this year.

 
  • ”在最近的一次实验室测试中,光力学疗法在10分钟之内杀死了一种引起齿龈炎的病菌的”99.;9%25临床实验也定在今年的晚些时候进行。
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