Remineralization of enamel subsurface lesions by xylitol chewing gum containing funoran and calcium hydrogenphosphate.

The aim of the present study was to determine the remineralization effects of xylitol chewing gum containing funoran and calcium hydrogenphosphate on enamel subsurface lesions in humans. The study was a double-blind, randomized, cross-over design, with 4 types of gum: (1) xylitol gum, (2) xylitol gum containing funoran and calcium hydrogenphosphate, (3) sugar gum, and (4) gum base as a control. Seven subjects were instructed to wear removable lingual appliances, with half-slab insets of human enamel containing demineralized subsurface lesions.

Plaque pH response to snack foods in children with different levels of mutans streptococci.

This study aimed to investigate the effects of some snack foods on plaque pH in children with different levels of mutans streptococci (MS). Six children, aged 9-12 years, with low (<10(4)) and 6 children, aged 10-12 years, with high (>106) numbers of MS/ml saliva participated in the study. Dental plaque pH changes, after the consumption of milk chocolate, sweet biscuit, instant noodle, sticky rice with banana and a 10% sucrose positive control were measured using pH-electrode.

Salivary mutans streptococci and lactobacilli after self arresting caries treatment.

Previous studies have shown that Self Arresting Caries Treatment (SACT) may be a useful technique to arrest active caries in Thai preschool children in remote areas. The objective of this study was to examine the effect of SACT on the levels of salivary mutans streptococci and lactobacilli in Thai children. Eighty-two subjects aged 4-6 years from primary school in a remote area of Thailand were recruited for this study.

The effect of xylitol chewing gum on mutans streptococci in saliva and dental plaque.

Dental caries are one of the most common infectious diseases occurred in Thai children. The chewing of xylitol, sorbitol, and even sugar gum has been suggested to reduce caries rates. The aim of the present investigation was to evaluate the effect of xylitol chewing gum on mutans streptococci (MS) in saliva and dental plaque.

Microcirculation and micromorphology of healthy and inflamed gingivae.

Inflammation changes the microcirculatory and micromorphological dynamics of human gingiva. Laser Doppler flowmetry (LDF) and a replica technique for scanning electron microscopy (SEM) were used to examine the facial soft tissues of six maxillary anterior teeth, before and after treatment, in 12 patients exhibiting clinically healthy tissues and in 12 others with moderate gingivitis. All patients received oral hygiene instructions and scaling.

Microcirculation of the healthy human gingiva.

The purpose of this study was to evaluate the microcirculation in healthy human gingiva. Forty-two adult volunteers with clinically healthy gingiva participated. The ages of this research sample ranged from 20 to 30 years.