Ablation has been described as the expansive
vaporisation of tissue. In periodontal procedures the
ablation capacity of the laser can be used for excision
and incision of pathology. The Erbium doped lasers can
be used effectively for soft tissue procedures with or
without water. It is essential that the air supply is turned
off when soft tissue procedures or any procedure with a
flap is performed, to prevent subcutaneous emphysema.
Hard tissue lasers are effective in bone ablation provided
that the water is present preventing collagen denaturation
and necrosis of the targeted tissue.