Showing papers in "Archives of Oral Biology in 1984"

TL;DR: The finding that the estimated difference between the means of the sexes was the same for each anomaly, within the limits of experimental error, supports the validity of the model.

TL;DR: Considerable differences in the median particle sizes at a given number of chewing strokes were observed between the subjects, reflecting differences in efficiency of comminution of a test food.

TL;DR: First-time mothers selected on the basis of high salivary counts of Strep.

TL;DR: The mother as the major source of Strep.

TL;DR: It is concluded that tooth eruption is a series of metabolic events in alveolar bone characterized by bone resorption and formation on opposite sides of the dental follicle and the tooth does not contribute to this process.

TL;DR: Multivariate analyses revealed that this relationship could not be explained by differences in sex, social class, tooth-brushing habits or level of plaque as measured by gingival inflammation, and weight of sugar intake appeared to be more strongly correlated to caries than frequency of intake.

TL;DR: A trypsin-like, membrane-bound protease from Bacteroides gingivalis was solubilized by Triton X-100 and partially purified by a combination of DEAE-Sepharose and aminophenylmercuric Sepharose chromatography, by taking advantage of the thiol group on the enzyme.

TL;DR: This particular LPS could be important in mediating bone loss in chronic periodontitis as histochemical observations of stable acid phosphatase activity indicated both mononuclear and multinuclear cells participating in bone removal.

TL;DR: A function describing a stretching effect on newly-differentiated ameloblasts, arising from the geometry of the advancing margin of forming enamel, and dependent in part on the extension rate, was derived and might influence ameloblast secretory area and hence prism size.

TL;DR: Four to ten years of serial bite-wing radiographs from over 700 children from five groups, three in Sweden and two in the U.S., were interpreted and the mean time and probability distribution for the time a lesion remains in both the outer half and inner half of the enamel were estimated.

TL;DR: It is confirmed and extended previous observations that the species of plaque bacteria most closely associated with the initiation or progression of dental caries are more aciduric than non-cariogenic species.

TL;DR: The order of lesion depths in vitro among permanent teeth suggests that in vivo the pattern of caries incidence among the various tooth types is governed mainly, not by intrinsic susceptibility but by other factors, such as morphology and salivary composition and flow rate.

TL;DR: It is hypothesized that the volume of food between the teeth at any chewing stroke depends more on food-particle size than on the weight of food in the mouth.

TL;DR: A study of the dry weight of primate and non-primate masticatory Musculature permitted possible allometric and ontogenetic influences on this musculature to be explored.

TL;DR: A series of 36 post-mortem labial salivary glands from both male and female subjects with ages ranging from 25 to 80 yr were examined histologically, and an age-related decrease in acinar volume proportion and an increase in ductal and connective tissue volume proportion are recorded.

TL;DR: The finding that a 2 per cent solution of wheyprotein reduced the extent of fissure caries in animals consuming a solid diet containing 26 per cent whey protein suggests that the anticariogenic action is mediated by the protein being in solution.

TL;DR: The following findings suggest that eugenol is a membrane-stabilizing (local anaesthetic) drug at low concentrations: reversible cAP inhibition, increased threshold, high-frequency inhibition, and unresponsiveness of the resting membrane potential of the muscle to the drug.

TL;DR: F fluoride interfered with the normal post-secretory, pre-eruptive development of enamel, indicating that there was an initial delay in the loss of the amelogenin proteins followed by a decreased removal of total protein from the enamel.

TL;DR: Plaque samples from caries lesions, white spot margins of these lesions, and caries-free smooth enamel surfaces, obtained from seven subjects with nursing bottle caries, all contained unusually high proportions of Streptococcus mutans.

TL;DR: The composition of secretory proteins in the parotid saliva of rats can be altered by experimental conditions which affect gland secretory activity, and the mechanisms by which these changes occur are not known.

TL;DR: Conversion of toxic H2O2 to non-toxic OSCN- in fibroblast culture by lactoperoxidase and SCN- suggests a dual role for the salivary peroxid enzyme system: protection of human cells from H 2O2 toxicity and antimicrobial action against oral pathogens.

TL;DR: A given motor unit discharged with a different regularity in firing rate during retraction of the mandible than during clenching of the jaws in the intercuspal position, probably related to a changed central and peripheral influence on the motoneurone pool.

TL;DR: The fibre composition and occurrence of muscle spindles was studied in the masticatory, the suprahyoids and the infrahyoid muscles of the rat and fibre type appeared to be closely related to fibre diameter.

TL;DR: Reproducible jaw-closing reflexes were evoked following standardized stimuli; subtle variations in motoneurone excitability, such as reflected by differences in jaw-jerk latency between sides, may then become apparent.

TL;DR: Structures observed in dentinal tubules from outer dentine were identified by TEM as electron-dense structures lining the tubules and not as odontoblast processes, which correspond to the previously described inner hypomineralized lining of dentinal Tubules.

TL;DR: Zinc salts inhibited acid production from [14C]-glucose in vitro by plaque at concentrations which were found in plaque in vivo after using the mouthwashes.

TL;DR: That ion gradients are important in the chlorhexidine-resistant glucose-uptake mechanism was confirmed using the classical uncoupling agents, carbonylcyanide-m-chlorophenylhydrazone, 2,4-dinitrophenol and KSCN.

TL;DR: Horseradish peroxidase was injected sub-epithelially beneath keratinized gingiva and a variety of nonkeratinized oral epithelia and a surface barrier was evident from which the tracer had been excluded.

TL;DR: Using the thermal diffusion principle, the reduced marginal gingival blood flow measured indicated that epinephrine and nicotine were both able markedly to reduce the marginalGingival circulation.

TL;DR: Freshly-extracted human third molars were fixed in Zamboni fixative, demineralized with the mixture of EDTA and the fixative; substance P-like immunoreactivity (SPLI) was revealed by the indirect immunofluorescence technique of Coons.