In toothbrushing, it is important to clean at the gum margins, because the bacteria usually accumulates here. Neglecting to clean the gum margins, the gums will become inflamed and will bleed easily on toothbrushing.
刷牙最重要的是針對牙齒的牙齦邊緣部分加以清潔，因為這里有很多細菌。 如果忽略了清潔這里，牙齦會容易發(fā)炎且刷牙時牙齦易出血。

The only way to improve mild gum inflammation is to clean the gum margins thoroughly. Start from the outer surface of the last lower molar that is the tooth surface near the cheek.
要改善初期牙齦發(fā)炎，便要徹底清潔牙齦旁邊。 從下面牙齒最后一顆臼齒的外側(cè)面開始刷，也就是最靠近面頰的那一顆。

During toothbrushing, bristles should be placed at an angle against the gum margins, gently move the toothbrush back and forth in small amplitude like massaging the gums with only the bristles moving but the toothbrush head hardly moves. Consider two to three teeth as a group. Brush ten times for each group.
刷牙時，刷毛要斜斜的放在牙齦旁邊。刷牙的動作幅度不要大，前前后后的，好像在摩擦牙齒，刷毛在擺動，但牙刷頭只是少許擺動。兩三顆牙齒為一組，每組刷十次。

Brush the teeth from one side of the cheek to the other. The movement should be gentle. Listen to the sound produced during toothbrushing. If the sound is too loud, that means your brushing is too hard. If brush properly, the sound should be soft.
從靠近面頰的一邊刷到另外一邊，動作不要大。可以聽一聽刷牙時發(fā)出的聲音，聲音太大就是不正確。刷的正確的話，聲音不會太大。

After having finished the outer surfaces of the lower teeth, clean the inner surfaces of the lower teeth facing the tongue.
刷完下面的牙齒外側(cè)面，就要刷靠近舌頭的內(nèi)側(cè)面。

When brushing the incisors since the alignment of these teeth is curved in shape, the usual toothbrush motion cannot be applied here. Place the toothbrush almost vertically and brush the surfaces with the last few rows of bristles. Brush away from the gum margins. After finishing one tooth, move the toothbrush to the neighboring teeth to continue cleaning.
但是刷門牙的位置時，由于牙齒的排列是彎彎的，之前用的方法在這個位置就不適用。因此要把牙刷放直，用牙刷末端的刷毛來刷。動作是向外刷出，刷完一顆牙齒之后，稍微移動一點點，避免漏掉。

When all the 6 incisors are done, clean the inner tooth surfaces on the other side of the mouth.
刷完前面六顆牙齒之后，就要刷另外一邊靠近舌頭內(nèi)側(cè)面。

After having cleaned all outer and inner surfaces of the lower teeth, clean the chewing surfaces of lower molars. Place the toothbrush horizontally against the chewing surfaces. Remember to brush the last molar. In brushing the upper teeth, also start from the outer surface of the last molar at the back.?Place the toothbrush against the gum margins. Take two to three teeth as a group and brush gently.
刷完兩側(cè)之后，就要刷臼齒的凹凸表面，這個表面稱為咀嚼面。刷時把牙刷放平，謹記刷最后的那顆臼齒。刷上面那顆牙齒的時候，也就是從最后那顆臼齒的外側(cè)面開始。將牙刷放在牙齦旁邊，分兩三顆牙為一組，輕輕地刷。

While cleaning the incisors, hold the toothbrush vertically. Brush away from the gum margins with the last few rows of bristles. When brushing the chewing surfaces, place the toothbrush horizontally. Make sure that every molar is thoroughly cleaned.
刷門牙時就要把牙刷放直，用牙刷頭末端的刷毛來刷牙齦旁邊。刷咀嚼面時，就把牙刷放平，沒顆臼齒都要刷干凈。