Clinical application of angiography of oral and maxillofacial hemangiomas. Clinical analysis of seventy cases

Angiographic findings in seventy cases of maxillofacial hemangioma are reported. The tumors have been divided into four types: (1) plexiform hemangioma, (2) cavernous hemangioma with venous drainage, (3) cavernous hemangioma without venous drainage, and (4) the so-called "diffuse type" of cavernous hemangioma. The angiographic features of the four types are described, and clinical application is evaluated. The angiograms demonstrate the location, extent, blood supply, and drainage of the tumors and show whether they communicate intracranially, thus providing valuable criteria for planning and determining the mode of treatment.     

Activation of the complement system by some gram-positive oral bacteria.

Actinomyces viscosus 19246, T₁₄V and T₁₄AV, Streptococcus mutans and Streptococcus sanguis consumed complement in vitro. Complement (C) profile analysis revealed that C₄ and C_3–9 were consumed concomitantly in unadsorbed human serum. In serum from which naturally occurring agglutinating antibodies had been removed, the same microorganisms caused C_3–9 consumption in the absence of a demonstrable loss of C₄ activity. Congenitally C₄-deficient guinea-pig serum (C₄D) supported a similar consumption of C_3–9. The Gram-positive plaque microorganisms tested activated serum complement by the classical as well as the alternate pathways. Dental plaque microorganisms may cause a similar activation of gingival crevicular fluid complement in vivo, thus resulting in complement-mediated inflammatory processes.     

Inhibition of dental caries in school children by topically applied vancomycin.

A one-year clinical trial was conducted in which, at the outset, 268 children aged 9–11 years were randomly assigned to the treatment or control group. At baseline a clinical and radiographic assessment of dental caries was performed. Thereafter, every morning in school, treated subjects self-applied, for 5 minutes, pre-trimmed plastic trays containing a sponge rubber insert and filled with a 3 per cent vancomycin gel. Participants were monitored every 4–6 weeks for their level of Streptococcus mutans on specific surfaces. After 12 months, the overall caries increment in treated subjects averaged one less DF surface than in the controls (4.42 DFS vs. 3.43 DFS, p = 0.032). The reductions in caries were significant in fissures but not on the smooth or approximal surfaces; also in newly erupting teeth but not in teeth present at baseline.     

Electron immunoperoxidase stainings in sections of unfixed pure cultures of Streptococcus mutans

Unfixed as well as glutaraldehyde-fixed pelleted cells from pure cultures of Streptococcus mutans subspecies sobrinus (B13) were embedded in glycolmethacrylate. Ultrathin were sections immunoperoxidase labelled with rabbit anti-S. mutans sobrinus gamma-globulin. It was found that unfixed specimens became labelled as precisely and as distinctly as did the fixed specimens. All controls were negative.     

Influence of TMJ dysfunction on Bennett movement as recorded by a modified pantograph. Part I: Literature review

This review has pointed out the difficulties in studying the lateral side shift of the mandible (Bennett movement) as well as the many contradictory results that have evolved from investigations.Based on the studies reported, it seems reasonable to conclude that Bennett movement accompanies most subject's lateral jaw movements,^{2, 8, 21, 33, 36, 45} but its amount and “timing” varies between individuals^{33, 45, 46, 52} and may be influenced by muscle incoordination and TMJ dysfunction.^24–27 Furthermore, the axis around which all lateral movements occur may be oblique rather than vertical and perpendicular to the subject's hinge axis.^{43, 49}The importance of Bennett movement has often been emphasized. Disagreement and controversy still exist regarding (1) the immutability of its magnitude throughout occlusal therapy^24–27 and (2) the possible relationship between TMJ dysfunction and Bennett movement.^{24, 25, 27}A clinical study has been completed and will be reported in subsequent articles to give insight into the possible influence of the neuromusculature on the lateral side shift of the mandible.     

Eigene Erfahrungen bei der Behandlung mit Funktionsreglern Typ I nach Fränkel

Zusammenfassung Auf Grund eigener Erfahrungen wird festgestellt, daß die Behandlungsweise nach Fränkel erst seit Propagierung der skelettierten Funktionsregler mit Aussicht auf Erfolg anwendbar ist. Es wird über gute Erfahrungen bei der Versorgung von 43 Patienten berichtet, welche wegen eines Schmalkiefers mit frontalem Engstand, eines Schmalkiefers mit engstehender oder lückiger Protrusion oder wegen eines genuinen Distalbisses in Behandlung standen und teilweise noch stehen.Mit 12 Abbildungen