ACID PRODUCTION FROM SWEDISH LYCASIN (CANDY QUALITY) AND FRENCH LYCASIN (80-55) IN HUMAN DENTAL PLAQUES

The acid produclion activity from glucose and from two types of hydrogenated starch hydrolysates, Swedish Lycasin® (candy quality) and French Lycasin® (80/55) in plaque suspensions from 10 subjects were compared. The pH changes in dental plaques after mouth rinses with concentrated solutions of the two Lycasin brands were studied in two groups of subjects, 22 in the Swedish Lycasin group and 18 in the French Lycasin group. Both Swedish Lycasin and the more hydrolysed Lycasin 80/55 were significantly less fermentable than glucose (p < 0.001). The acid production activity from Lycasin 80/55 was about 57% lower than that from Swedish Lycasin (p < 0.001). Mouth rinses with Lycasin 80/55 resulted in less pronounced pH decreases in the dental plaques than with Swedish Lycasin at 2, 5 and 10 (p < 0.001) and at 20 min (p < 0.01) after the rince. © 1978 S. Karger AG, Basel.