PURPOSE: to evaluate the efficacy of using sonic electric toothbrush to clean the teeth and control dental plaque in children.
目的：观察儿童使用声波震动牙刷清洁牙及控制菌斑的效果。
CONCLUTIONS: Sonic electric toothbrush can help children effectively remove dental plaque. It's an efficient instrument for oral care of children.
结论：声波震动牙刷能有效帮助儿童清除牙面菌斑，是儿童口腔护理的有效工具。
CONCLUTIONS: Sonic electric toothbrush can help children effectively remove dental plaque. It's an efficient instrument for oral care of children.
结论：声波震动牙刷能有效帮助儿童清除牙面菌斑，是儿童口腔护理的有效工具。
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