Gently cleaning between teeth and even below the gumline.

轻柔的清洗牙齿、甚至牙龈的下部。

Many of my teeth have become very sensitive at the gumline.

我的许多牙齿的牙龈边缘变得十分敏感。

Slide floss up and down against the tooth surface and under the gumline.

幻灯片牙线上下对牙齿表面和牙龈线下。

And dental floss can go where no brush has gone before: between teeth, along the gumline.

而牙线可以进到牙刷不能到达的地方：牙间隙，牙龈边沿。

To maintain healthy teeth and gums it is important that bristles contact both the tooth surface and the gumline.

为了保持健康的牙齿和牙龈重要的是，无论是刷毛接触牙齿表面和牙龈线。