[Effect of soft laser on pain]

Two kinds of semiconductor laser, STOMA-LASER and Four-Luck, were used for patients having pain in the mouth and their effective rates were compared in 93 patients (133 cases). As a result, the following results were obtained. 1. The effective rate was 70.7% at the stage just after radiation. 2. Age, sex and oral hygiene were not significant for the effective rate. 3. The kinds of diseases were remarkably significant. 4. The kind of apparatus did not play any role in the effective rate as a whole, but was significant for the kinds of disease.