吸烟者牙齿表面往往会沉积一层黄褐色的烟垢,并随着吸烟时间的增加而增厚,一般牙膏难以消除。烟垢主要成份为吡啶氢化吡咯,分子内含有吡啶环和吡咯环。吡咯环极易氧化,被氧化后变成褐色烟垢。烟垢不仅影响到美观,而且可损坏牙龈和牙髓。如果用机械方法刮除,容易损坏牙釉质而影响牙齿寿命。 Smokers tend to deposit a yellowish-brown scale on their tooth surfaces and thicken as smoking time increases, and toothpaste is generally difficult to eliminate. The main component of soot is pyridine pyrrole, which contains a pyridine ring and a pyrrole ring. Pyrrole ring easily oxidized, oxidized to brown smoke scale. Not only affects the appearance of sooty, but also damage the gums and pulp. If the mechanical method of curettage, easy to damage the enamel and affect the tooth life.