The principal part of natural tooth color of the people living in Ningbo was in the red brown area (Vita A) and it was in the brighter part of the vita and the color of ceramic crowns in men was darker than that in women.

• 宁波地区人们牙冠颜色主体在红棕色区（A色调）,并分布在VITA比色板小颜色较亮部分,男性较女性选色略深。