The use of low level laser after cavity preparation in vital tooth: a clinical report.

Patients frequently complain of post-operative pain after cavity direct and indirect preparations. Restorative procedures are obviously a source of injury to pulp tissue as a result of several factors, such as heat generated by cavity preparation, method of restorative material placement, chemical irritants and others. Low level lasers (LLL) are reported to be analgesic, biomodulatory and anti-inflammatory: published studies have shown their numerous effects after cavity preparation, among those biomodulation of pulp cells, decreased inflammatory reaction in the pulp and acceleration of dentin recovery (in the pre-dentin region). These two case reports describe and illustrate the use of LLL as a complementary tool preventing post-operative sensitivity after cavity preparation in direct and indirect restorative procedures.