In fact,these are the fillings called as  Laser-filling  based on the wrong information given by the dentist  among the population .Here, wrong information is being given by naming the blue light being used for filling, hardening as laser light.

Within micro and nano fillings, and new system composite fillings these are minimized. Color change is seen as the way that your own natural tooth is colored as a result of  cigarettes, tea, coffee, cola, etc. …,based on the minimisation of   the surface roughness by polishing and resistance for  stain increases, yet,within the controls performed…

There are some limitations in this regard. Very hard objects (ice, sugar and nuts, such as broken teeth) should refrain from biting. In addition, nail biting, pencil biting, and other negative habits must be avoided.

This time depends on the material used and the quality & ability of the dentist. Fillings made ​​with  new technology can have a life time from 5 to 10 years. During this period, colorisation and microleakage  can be avoided during regular checkups.