下午去上「在職課一口腔保健」，牙醫師有提到兒童在6~9歲前(小學一~二年級)，在第一顆大臼齒永久牙長出後；需由醫師作「窩溝封填施作」，這樣作可大大降低兒童蛀牙的情形，且健保有給付。

No response has been written yet. It is recommended to maintain a healthy skepticism towards it.