由於牙齒失活(死亡)之後顏色會變黃變褐變暗, 如果發生在前牙,美觀上就差了。 如果牙齒的根管治療已完成: 相同於一般的牙齒漂白,可以將漂白藥劑放入牙齒的隨腔內,進而達到牙齒變白的效果。漂白後的牙齒仍須以適合的內部假牙佔據並充滿隨腔,防止牙齒斷裂,使它能用得更久。

Due to the necrosis of the pulp, the tooth color tend to become darker, browner. After the root canal  treatment had been done, dentist can apply the bleaching agent into the pulp chamber to absorb the pigment and make the tooth color become whiter. After the bleaching, the internal parts need to be strenghen with the post is still recommented.