Showing papers in "Archives of Oral Biology in 1990"

TL;DR: Significant findings were an increase in labelled odontoblast-like cells in zone 1 over time, suggesting a continual influx of differentiating cells, and differences in grain counts between zones, treatment times and cell types, indicating that at least two DNA replications had occurred between initial treatment and final odontoplast- like cell differentiation.

TL;DR: It is suggested that TNF may be found in sites prior to clinically observable disease and therefore may prove to be a suitable indicator for periodontal disease.

TL;DR: It is suggested that dissolved BMP stimulates mitosis of mesenchymal cells and may induce differentiation of osteodentinocytes and the resultant osteodentine may play some role in the differentiation of odontoblasts.

TL;DR: Immunofluorescent localization indicated that periodontal ligament cells produce a bone-associated protein, osteonectin, which should help to clarify the role such cells play in the regulation ofperiodontal tissues.

TL;DR: It seems likely that elevated levels of enzymes present in gingival fluid as sequelae of poor oral hygiene and gingivitis may generate cryptitopes for potentially periodontopathic bacteria, and thereby contribute to modulation of theGingival flora.

TL;DR: Salivary composition changes significantly during childhood, implying a process of development and maturation of the salivary glands and indicating the need of age-matched controls for the clinical use of saliva.

TL;DR: Neutrophils are suggested to be the main source of such enzymes in inflamed human gingiva, crevicular fluid and saliva during adult periodontitis as well as the fibroblast-type interstitial collagenase.

TL;DR: The similarities and differences in fibre-type composition between the facial, masticatory and limb muscles imply that specific functional demands are of greater importance for muscle differentiation than embryological origin and nerve supply.

TL;DR: Peripheral sensory impairment affects masticatory efficiency in dentate persons and coarse particles were ground more rapidly than fine particles before anaesthesia.

TL;DR: Infection with uncommon serotypes of Strep.

TL;DR: Evaluating the distribution of TGF-beta 1 within rat molars at different stages of development found this temporospatial pattern of expression appears to correlate with specific events in morphogenesis, histogenesis and cytodifferentiation during tooth development.

TL;DR: The morphological association of CGRP-immunoreactive nerve fibres with the edges of the healing lesions and with zones of reparative dentine suggests a role for these fibres and for the neuropeptide C GRP in the healing response of pulpal tissue.

TL;DR: The most recent epidemiological data on the prevalence of dental caries in children indicate a halting of the increasing levels in many developing countries and a continuing decrease in many highly industrialized countries of the world.

TL;DR: To determine whether continuing eruption occurs in the absence of attrition, measurements were made on the jaws of an eighteenth-century population whose tooth wear had been minimal, indicating that facial height probably increased throughout the life time of the individuals.

TL;DR: Findings support the concept of familial spread of A. actinomycetemcomitans strains found in at least one of the parents, as indicated from the presence of RFLP type B in 3 subjects who converted from a healthy periodontal state to localized juvenile periodontitis.

TL;DR: Day-14 lower incisors and day-18 first lower molars of mouse embryos produced in vitro transforming activities for non-confluent NRK cells co-cultured in agar, and mitogenic activities for exponentially growing NRK and BHK cells.

TL;DR: Topical application of Streptococcus mutans-specific MAbs was examined and it was found that the serotype and epitope specificities of the IgG MAb were essential, but that the Igg sub-class may not be important.

TL;DR: Gene banks of chromosomal DNA from Bacteroides gingivalis 381 were constructed using the bacteriophage replacement vector lambda L47.1 to create the recombinant plasmid pMD123, which was found to have a relatively high content of hydrophobic amino acids.

TL;DR: The content of free amino acids in submandibular, parotid and whole saliva and in gingival fluid was measured by automatic analyser in patients with progressive periodontitis and in controls, stressing the importance of bacterial metabolism as a cause of the wide range of amino acid concentrations.

TL;DR: It is suggested that salivary proteins or mucin may bind to the mannoprotein of C. albicans in significantly greater quantities than other proteins.

TL;DR: The pervasive nature of measures of reduced growth potential and developmental control suggests that the cause of the compromised growth is the adverse early postnatal environment rather than conditions intrinsic to the individual.

TL;DR: It is suggested that fibroblasts of the periodontal ligament may generate sufficient force for tooth eruption.

TL;DR: The efficacy of a semisynthetic tetracycline (doxycycline) in a double-blind follow-up study of 14 patients with localized juvenile periodontitis was evaluated and the periodontal condition improved in both groups.

TL;DR: Findings indicate that locally produced autocrine or paracrine factors can modify the effect of mechanical stress on periodontal and bone cells via the cAMP pathway through the chemical and mechanical signals mediated by surface receptors.

TL;DR: In this article, 10 sections of dentine, cut perpendicular to the dentinal tubules, from human mature non-carious third molars were freeze-dried and then rehydrated by immersion in water.

TL;DR: It is suggested that extracts from plants used as chewing sticks may possess enough inhibitory components to interfere with the virulence and growth of periodontopathic bacteria in vivo, provided they are able to gain access to the subgingival sites such bacteria preferentially inhabit.

TL;DR: It is suggested that these regional differences in mechanical properties were much more marked than those in teeth of limited growth or in other connective tissues, and that the nature of the collagen fibres, together with surrounding cells, ground substance and blood vessels, may be important in determining such differences.

TL;DR: Neither short-term clinical nor microbiological efficacy beyond that of a course of mechanical debridement alone was found by using systemic medication with doxycycline in patients with localized juvenile periodontitis.

TL;DR: The orientation of these lines of action was estimated in 9 healthy subjects, by reconstructing the muscle shape from a series of parallel sections obtained by MRI, indicating that the accuracy of the estimate was principally dependent on the reliability of the reconstructions.

TL;DR: The laser Doppler flowmetry measurements of these norepinephrine-induced changes correlated significantly with changes measured by the 133Xe washout method as analysed by linear regression.