The bleaching is done by applying heat to the tooth with a hot metal dental instrument.
漂白牙齿要用一种发热的金属器械把热送达牙齿上。
2
If you have coffee-stained teeth, a tooth-bleaching kit can help.
如果你有咖啡染色斑，可用牙齿漂白试剂盒。
3
Conclusion Nightguard vital toothbleaching with TREE dental whitening gel is an effective, conveniency and safety therapy method and beneficial to periodontal tissue.