Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 2005-2009  (3)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Journal of clinical periodontology 32 (2005), S. 0 
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim: The purpose of this study was to assess the ability of enamel matrix derivative (EMD) to improve root coverage with a coronally advanced flap (CAF) during a 2-year follow-up.Methods: Fifteen patients each with two single and similar bilateral Miller Class I or II gingival recessions (30 recessions) were selected. Each recession was randomly assigned to the test group (CAF+EMD) or the control group (CAF only). Clinical parameters recorded at baseline and at 6, 12 and 24 months were recession depth (R), recession width (WR), probing depth (PD), clinical attachment level (CAL) and keratinized tissue (KT).Results: Reduction of R resulted in a significant CAL gain in both groups, whereas PD was not altered. In the test group, R decreased from 4.07 mm (SD±0.59) at baseline to 0.47 mm (SD±0.74) at 24 months, corresponding to a mean root coverage (MRC) of 90.67%, whereas in the control group R shrank from 4.13 mm (SD±0.74) at baseline to 0.60 mm (SD±0.83) at 24 months (MRC=86.67%). Complete root coverage was achieved at 24 months in 73.33% and 60% of the two groups. A significant KT increase was observed in both groups.Conclusions: Root coverage outcomes were similar in both groups and no statistically significant differences were found at all between them. Hence, the additional use of EMD to CAF is not justified for clinical benefits of root coverage, but as an attempt of achieving periodontal regeneration rather than repair.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 116-117 (Oct. 2006), p. 522-525 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: The tensile properties and the microstructure of an Al-7%Si-0.6%Mg-0.5%Cu rheo-castcomponent were investigated. The material underwent a T5 treatment, consisting in ageing at 160,175 and 190°C for durations ranging from 0.5 to 48h. Tensile testing indicated that the T5 treatmentresulted in a relatively good level of strength and in a comparatively low ductility. In order toimprove ductility, maintaining as low as possible the cost of the final component, a single solutiontreatment at 500°C for 4h was subsequently applied. The tensile strength and ductility of thesolution treated and aged material were higher than in the T5 condition. These differences wereattributed to the microstructural evolution occurring during exposure at 500°C, in particular to thespheroidization of eutectic-Si and to a more homogeneous distribution of the precipitates
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 141-143 (July 2008), p. 237-242 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: The correlation between the evaluation of the mechanical and of the fatigue behaviour ofthe rheocast, T5 and T6 heat treated SSM A356 aluminium alloy with respect to the microstructuresof the component has been investigated. The study has been carried out on a suspension arminjected in a rheocasting 800 tons plant in Stampal S.p.A. The new rheocasting is a process thatallows obtaining the alloys in a semisolid state directly from the liquid state, by controlled coolingof the molten alloys. The resulting microstructures are very fine, free from defects andhomogeneous: these characteristics improve the mechanical properties of the alloys and speciallythe response to cyclic stress, an important issue for a suspension component. After a preliminarytensile test analysis, axial high frequency fatigue tests have been carried out at room temperature onspecimen cut out from the suspension arm to determine the Wöhler curve and the number of cyclesto failure. The results of this work allow a comparison of the effects of heat treatment process, T5 orT6, on Semi-Solid components for industrial applications in the automotive field.On the basis of these analysis the correlation between microstructure and mechanical performancescan be established
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...