The effect of teeth whitening at Smilekraft Dentistry in Pune lasts for an average of at least 2 years. It may be more or less based on your diet and maintenance after the whitening procedure. Such procedures are not permanent and have to be performed periodically, though the time required to achieve good results keeps improving.
If you are looking for permanent teeth whitening then the only option you need to ponder upon are Porcelain Veneers or Crowns.