Laser crown lengthening vs. conventional? (Non-cosmetic)

When it comes to the crown lengthening procedure the advantages of the laser do include less pain and quicker healing.  The disadvantage of having the procedure performed by laser is that if the bone level needs to be altered, visualization of the osseous contours is compromised.

 There is no doubt in my mind that using conventional gum surgery gives you way more control. Gum surgery sometimes reveals that you may need addition of bone or grafting, and other minor complications that are done so much more easily by conventional means then with laser.

Your situation may be perfect, as lasers are great as a "fine tune" treatment.  There are two types of tissues to treat, bone and gums. To treat bone, the laser must be erbium.  This may not contour the bone as well as conventional methods, but if conventional was already done, then "finishing touches" can be done.  Even easier is if it is just gum contours, which a diode or Nd:yag laser does very well.Lasers are nicer than blades in that the nerve endings are affected so post op pain is much less and healing is faster.