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  • 1
    Electronic Resource
    Electronic Resource
    Profile of an orthodontic patient at risk of dental trauma (2000)
    Copenhagen : Munksgaard International Publishers
    Dental traumatology 16 (2000), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – Increased overjet and inadequate lip coverage of the maxillary incisors are considered significant risk factors in many clinical studies. The purpose of the present study was to examine this issue of dental injury by actual cephalometric measurements in orthodontic patients. Pretreatment cephalograms (taken with lips in repose) of consecutive patients were used. The patients were allotted to two groups Group T (trauma): 56 patients who had injured their maxillary incisors prior to their orthodontic treatment, mean age at the start of treatment 11.9 years (SD=1.5); and Group C (control): 98 patients with intact maxillary incisors, mean age at the start of treatment 11.6 years (SD=1.3). Twelve cephalometric landmarks on the soft and hard tissue profile were identified and digitized and the relevant dental, skeletal and soft tissue measurements recorded. The variables in Groups T and C were compared and their predictive values for possible occurrence of trauma were tested by logistic regression analysis. No statistically significant differences between boys and girls were found. Overjet or maxillary incisor exposure or interlabial gap, each as a single variable, could differentiate between the two groups. Logistic regression analysis indicated that only a small percentage (28.7%) of the dependent variable variation (trauma vs control) can be explained by interlabial gap, gender, upper incisor long axis to facial plane (degree), upper incisor long axis to interlabial gap and overjet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-9657.2000.016003111.x
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  • 2
    Electronic Resource
    Electronic Resource
    Bone-like tissue growth in the root canal of immature permanent teeth after traumatic injuries (2000)
    Copenhagen : Munksgaard International Publishers
    Dental traumatology 16 (2000), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – Following a severe traumatic incident to permanent immature teeth, the growth of calcified tissue in the pulp space may occasionally occur. This calcified tissue may be diffuse or in intimate contact with the dentine. It has been suggested that a wide open apex, severe damage to the root sheath, and the absence of infection are only some of the predisposing factors leading to this metaplasia of pulp tissue into bone-like tissue. Five cases are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-9657.2000.016006298.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mandibular canine with two roots and three root canals (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 11 (1995), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – A rare case of root canal retreatment in a lower canine with two roots and three canals is presented. While the presence of two roots and two canals in one root is not uncommon, the finding of three canals in a lower canine appears not to have been reported previously.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1995.tb00509.x
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  • 4
    Electronic Resource
    Electronic Resource
    Antibacterial synergistic effect of chlorhexidine and hydrogen peroxide against Streptococcus sobrinus, Streptococcus faecalis and Staphylococcus aureus (1999)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 26 (1999), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Chlorhexidine (CHX) and Hydrogen peroxide (HP) are potent antibacterial agents that are used in controlling dental plaque. However, both agents bear undesired side-effects. We have tested the hypothesis that an antibacterial synergistic effect can occur between the two agents against Streptococcus sobrinus, Streptococcus faecalis and Staphylococcus aureus. We have found that at several combinations of HP and CHX an antibacterial synergistic effect does occur, while at other combinations a non-significant synergism was noticed. No antagonism between the two agents was found in our experimental system. It can be postulated that the mechanism of this synergistic effect is via alteration of the bacterial cell-surface by CHX thereby allowing for an increased amount of HP to penetrate and to react with the intercellular organelles of the bacteria. These results suggest that CHX and HP can be of use in controlling the dental plaque in the oral cavity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.1999.00343.x
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of prefabricated metal post-head design on the retention of various core materials (2000)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 27 (2000), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Retention of various post heads to core restorative materials is an important factor in the selection of prefabricated post systems and restorative materials for the restoration of endodontically treated teeth. This study examines the retention of a post–core prefabricated system in relation to core material and post-head design. A total of 60 samples were prepared using two different post systems (ParaPost Plus® (PP) and ParaPost Unity® (PU), with amalgam, composite or glass–ionomer as one of the core materials. The samples were tested using the Instron testing machine. The PP was superior to the PU prefabricated post with respect to the retention of various core materials. Retention values in descending order of magnitude were found to be: composite, amalgam and glass–ionomer (significantly lower). The rhomboid serrated design of PP was superior in retention to the rounded smooth UP system. Composite material proved to be superior in retention, closely followed by amalgam, with glass–ionomer significantly less retentive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2000.00535.x
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  • 6
    Electronic Resource
    Electronic Resource
    Delayed treatment of a mid-root fracture (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 7 (1991), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract A case of delayed treatment of a mid root fracture is presented. A radiolucent lesion at the fracture line was treated with calcium hydroxide in the coronal fragment for nine months. Clinically, the tooth became firm and the radiographic results showed healing of the lateral lesion and hard tissue filling in the space at the fracture line.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1991.tb00197.x
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  • 7
    Electronic Resource
    Electronic Resource
    In vitro antibacterial effect of RC-Prep components on Streptococcus sobrinus (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 15 (1999), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— The aim of this study was to examine the bacteriostatic and bactericidal effects of the components of RC-Prep: EDTA, urea peroxide and glycol. The minimal inhibitory concentration and the minimal bactericidic concentration of EDTA, urea peroxide and glycol were tested on the viability of Streptococcus sobrinus (S. sobrinus). The combined antibacterial effect of these components was also examined on S. sobrinus. The minimal inhibitory concentration of EDTA was found to be 0.125%, of urea peroxide 0.25%, and of glycol 30%. The minimal bactericidic concentration of EDTA was 0.25%, of urea peroxide 0.5% and of glycol 50%. An antibacterial synergistic effect was found between specific combinations of urea peroxide, EDTA and glycol. No antagonistic effects were found in the various combinations between the components. The antimicrobial effect of the components of RC-Prep was enhanced in specific combinations of the ingredients. This effect might contribute to the intracanal cleansing properties of this medication.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1999.tb00796.x
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Myofibroblasts in subepicardium after local cold injury (1979)
    Springer
    Basic research in cardiology 74 (1979), S. 250-261 
    Details
    ISSN: 1435-1803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Nach operativer Freilegung wurden beim Herzen von Ratten durch direkte Vereisung eine örtliche Schädigung gesetzt. Die Herzen wurden 2, 4, 20 und 48 Stunden sowie 7 und 12 Tage später untersucht. In den ersten 48 Stunden trat eine Infiltration mit Mastzellen und polymorphkernigen Granulozyten (hauptsächlich Eosinophilen) auf, gefolgt von einer Proliferation mononuklearer Phagozyten, fibroplastischen Zellen und neuer Kapillaren. Die benachbarten Muskelpartien zeigten eine Schädigung im Sinne eines Einfrier-Auftau-Rigors, segmentaler Muskelfaser-Nekrose, Phagozytose und fokaler Regeneration. Nach 7 Tagen erschienen zahlreiche Myofibroblasten, die enge Beziehungen zeigten zu Muskelfasern, die der Degeneration und Regeneration unterlagen. Nach 12 Tagen war eine verstärkte Bindegewebsbildung zu verzeichnen mit mesothelialen Deckzellen des Epikardiums, die Muskelfasern normalisierten sich. Es wird angenommen, daß Amine, die von den Mastzellen freigesetzt werden, an der Bildung der Myofibroblasten beteiligt sind.
    Notes: Summary Rat hearts were exposed and injured locally by direct cryoapplication. The hearts were examined 2, 4, 20 and 48 hours, 7 and 12 days later. In the first 48 hours mast cell and polymorphonuclear (mainly eosinophilic) granulocyte infiltration was followed by proliferation of mononuclear phagocytic and fibroblastic cells and new capillaries. The underlying muscle showed freezethaw-rigor damage, segmental intramyofiber necrosis, phagocytosis and focal regeneration. After 7 days numerous myofibroblasts appeared and they were intimately related to myofibers undergoing degeneration and repair. After 12 days there was increased fibrosis while mesothelial covering cells of the epicardium and myofibers returned to normal. It is suggested that amines released from mast cells are involved in the formation of myofibroblasts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01907742
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    Paper (German National Licenses)
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