This is the hybrid of the bleaching technology where there are many chemicals involved in them. In this Teeth Bleaching Glasgow method the teeth are acted upon by different chemicals. These chemicals vary in their activation nature. They are self activated or they are activated by another external source. There is no problem with the self activating chemicals as they activate on themselves and thus they will not need an external source of energy to activate them. They are similar to that of the metallurgical etchants where they are etched upon the metals to reveal the grain structure. They also act in the same manner where they erode the metal surface. This is analogs to the etching action of the teeth by the chemicals. Another process is the Tooth Whitening Glasgow where no chemicals are used to etch the surface where as they are directly grinded. There is no need of any chemical reagents that is required to do this. Thus this whitening process is a very simple process and can be done easily by any trained professionals. This equipment also costs cheap hence they can be easily installed by them. Both these processes are equally effective and it’s up to your choice to choose any one from them.