We conducted subgroup analyses for necrotic and vitalteeth.
我们对坏死和活力牙齿进行亚组分析。
2
Body hygiene is vital! Remember to wear deodorant, clean your teeth, brush your hair and make sure your hands and fingernails are clean.
身体卫生这个很关键，记得要穿上无臭的衣服，清洗牙齿，梳好头发并且要确保你的手和指甲都要干净。
3
Whitening teeth will be counterproductive if smoking is continued and should be considered a vital first step in better oral health and a healthier smile.