Air abrasion procedures are virtually painless, which, in most cases, eliminates the need for an anesthetic injection. Air abrasion systems produce no vibration and no heat from friction. The technology can't harm soft mouth tissue and they operate very quietly. Because air abrasion cuts tooth surfaces with the utmost precision, it removes less tooth than the drill and it reduces the risk of enamel micro-fracturing. In other words, the advantages are more of your tooth is preserved, there is little or no discomfort, no anesthetic numbness is needed, and treatment time is usually shorter.