PubMed Health⌕ Search

Biomedical subjects

J C Muhler

Publications and source records attributed to J C Muhler.

At least 19 recordsLinked to original sources
PubMed1981

A mastication device designed for the evaluation of chewing gums.

A mechanical device designed to simulate the human mastication of chewing gum was used to evaluate the enamel polish, dentin abrasion, and reduction in enamel solubility produced by several commercial gums, as well as experimental gums incorporated with various additives. The results demonstrated that this mastication device was suitable for evaluating in vitro the physical and chemical effects of chewing gums on teeth.

Chewing Gum↗
PubMed1981

Duration and pattern of toothbrushing in children using a gel or paste dentifrice.

This study investigated the brushing times and patterns of two groups of children who used either a translucent gel dentifrice or a conventional paste dentifrice during a one month period. The children brushed without supervision and were examined without their knowledge. Examinations after the initial use and after a month of use of the two dentifrices showed no significant differences in toothbrushing times or patterns. Also, there were no significant deviations from the baseline scores. The study further demonstrated that uninstructed children in this age category brushed their teeth for approximately one minute per brushing, but failed to brush 38% of the tooth surfaces. The lingual surfaces were the areas most often missed, whereas the buccal, labial, and mandibular occlusal surfaces were the areas brushed most thoroughly.

Adolescent↗
PubMed1979

The effect of tablets composed of various mixtures of sugar alcohols and sugars upon plaque pH in children.

Changes in plaque pH were examined following ingestion of tablets composed of of sorbitol (S) or xylitol (X) combined with various levels of dextrose (D), fructose (F), or sucrose (U). Pure S and X tablets caused a slight pH rise. The 3:1 ratios of S:D,, S:F, X:D, and X:F caused slight lowerings to plaque pH means of 6.3, 6.8, 6.7, and 6.7, respectively, while 3:1 S:U caused the pH to drop to 5.6. All the 1:1, 1:3 and 0;1 ratios caused large drops in plaque pH.

Acids↗
PubMed1979

Studies of prophylaxis pastes containing sodium-potassium aluminum silicate and fluoride.

A sodium-potassium aluminum silicate cleaning and polishing agent was compared with conventional prophylaxis abrasives and was found to be highly compatible with fluoride. When formulated into a fluoride prophylaxis paste, especially with stannous fluoride, a larger reduction in enamel solubility and greater fluoride uptake were obtained with representative commercial prophylaxis pastes.

Aluminum Silicates↗
PubMed1978

Enamel dissolution by various food acidulants in a sorbitol candy.

The carboxylic acids used as food acidulants were evaluated for their effect on enamel dissolution in vitro. In water, the potential of the food acids to demineralize enamel was directly proportional to their acidity. However, in a sorbitol candy, the amount of enamel dissolution was correlated with the potential of the acids to chelate calcium.

Adipates↗