Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    In vitro evaluation of a glass–ceramic restorative material (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 24 (1997), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary The aim of the present study was to compressive and diametral tensile strength, evaluate the clinically relevant properties of the compressive strength and marginal fit of full crowns. recently introduced ceramic material IPS Empress™, The results show that this material is a highly which is marketed for all-ceramic restorations. The developed glass-ceramic with physical properties following parameters were investigated: three- and making this dental material well suitable for four-point bending strength, bi-axial flexure strength, adhesively luted restorations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1997.tb01075.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Marginal fit consistency of copy-milled all-ceramic crowns during fabrication by light and scanning electron microscopic analysis in vitro (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 24 (1997), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary The aim of this study was to evaluate the marginal fit of copy-milled Celay In-Ceram® crowns after different fabrication steps and to compare light-microscopic with scanning-electron-microscopic data. A master steel die of an upper middle incisor with a shoulder preparation and a rounded inner line angle was used. Impressions were taken to produce 10 working stone dies. One crown per working die was manufactured. The evaluation of the external marginal gap was performed on the master steel die by using a light microscope and a computerized video image analysis system after copy milling (A), glass infiltration (B), and veneering (C). Approximately 3900 readings were taken. In a final series the veneered crowns were measured by using a scanning electron microscope (Cs), yielding approximately 1000 readings. The results obtained were: A mean, 25.1 μm; s.d., 5.1 μm; range, 2.5–76.8 μm: B mean, 20.6 μm; s.d., 2.3 μm; range, 2.5–76.1 μm: C mean, 18.3 μm; s.d., 4.1 μm; range, 2.5–87.2 μm: Cs mean, 23.0 μm; s.d., 7.6 μm; range, 0.0–94.5 μm. The results were statistically evaluated using the t-test. The differences found between the series did not show practical relevance. Therefore, it is concluded that the manufacturing steps after copy milling have no obvious influence on the external marginal gap width. Scanning electron microscopic data seem to confirm the light-microscopic results. Hence, we expect that the Celay In-Ceram method yields a clinically acceptable marginal fit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1997.tb00288.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Four year clinical study of glass-infiltrated, sintered alumina crowns (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 23 (1996), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary The clinical outcome of 95 consecutively placed In-Ceram complete coverage crowns, 68 posterior and 28 anterior, all luted with conventional cements, was studied. In the 56 month observation period no total failure requiring replacement of a restoration occurred. The veneer of a molar single crown fractured, while its ceramic core remained intact. With four crowns, marginal caries was observed after 2–4–5 years. It was concluded from this clinical study that In-Ceram complete coverage all-ceramic cornws are indicated for anterior and posterior teeth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1996.tb01225.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Verwendung individuell hergestellter Keramikimplantate zur Sekundärrekonstruktion der knöchernen Orbita (1998)
    Springer
    Mund-, Kiefer- und Gesichtschirurgie 2 (1998), S. S98 
    Details
    ISSN: 1434-3940
    Keywords: Schlüsselwörter Sekundäre Orbitarekonstruktionen ; Alloplastische Materialien ; Stereolithographie ; Präoperative Therapieplanung ; Computergestützte Herstellung ; Key words Secondary orbital reconstruction ; Stereolithography ; Craniofacial prostheses ; Computer-aided manufacturing ; Alloplastic materials
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The use of autogenous transplants and the application of intraoperatively customised alloplastic materials show, in cases of secondary orbital reconstruction, a higher postoperative morbidity caused by additional approaches to the transplant donor site. On the other hand, thorough surgical exploration and fitting of the transplants or alloplastic materials greatly prolongs operating times. For these reasons we designed ceramic implants (Bioverit) on the basis of stereolithography models and prefabricated them using a commercially available dental copy milling unit (Celay). In five cases up until now seven customised implants have been inserted for reconstruction of the lamina papyracea, zygomatic complex and infraorbital floor and rim. Encouraged by the good postoperative aesthetic and functional results, with significantly reduced operating times and morbidity in all cases, we will continue to take this technique into account for reconstruction after complex orbital fractures.
    Notes: Zusammenfassung Sowohl die Verwendung autologer Transplantate als auch der Einsatz alloplastischer Materialien zeigen bei der Rekonstruktion der knöchernen Orbita Nachteile, die sich im wesentlichen durch die zusätzliche Entnahmemorbidität, aber auch durch verlängerte Operationszeiten ergeben. Aus diesem Grund haben wir bei ausgesuchten Fällen mit extremer Bulbusdystopie traumatischer oder kongenitaler Genese Bioveritglaskeramikimplantate auf der Basis von Stereolithographiemodellen hergestellt. Bei 5 Patienten wurden bislang insgesamt 7 Keramikimplantate im Orbitabereich inseriert, die jeweils komplikationslos einheilten und nach subjektiver und objektiver Beurteilung eine deutliche funktionelle und ästhetische Verbesserung ergaben. Damit zeigt sich hier eine Alternative zu konventionellen rekonstruktiven Verfahren, da trotz des hohen Material- und Personalaufwands dieser Technik bei nur kurzer stationärer Behandlungsdauer eine frühe Rehabilitation der betroffenen Patienten erfolgen kann.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014493
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Tensile and torsional shear strength of the bone implant interface of titanium implants in the rabbit (1994)
    Springer
    Journal of materials science 5 (1994), S. 314-319 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: The effect of three different titanium plasma flame spray coatings on the tensile strength and the effect of macrostructures on the torsional shear strength of the bone implant interface was studied. Titanium cylinders, of 8 mm length and 4 mm diameter, were implanted into distal rabbit femurs. For tensile testing, two porous titanium plasma flame spray coatings, Plasmapore®, fine-grain Plasmapore®, 1 dense, unporous coating, Plasmapore® fine on cylinders with axial grooves, and corundum blasted specimens as control group were used. For torsional loading smooth, and macrostructured cylinders with axial grooves, both with Plasmapore® fine-coating, were used. After 168 days the implant-bone interface was biomechanically tested. A tensile test and a torsional shear test was performed. The results indicated, that the titanium plasma flame spray coatings did not differ in their tensile interface strength, but yielded a stronger interface as sandblasted surfaces and that the macrostructures did not influence the torsional shear strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00058954
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Kieferorthopädie und Implantologie (1994)
    Springer
    Journal of orofacial orthopedics 55 (1994), S. 261-267 
    Details
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The therapeutical repertoire for treating patients with missing teeth was significantly expanded by the development of modern implant methods. We have performed a retrospective analysis convering all children who between 1977 and 1993 had been considered for implants as a method for gap management. All patients were pretreated up to early adolescence using standard orthodontic procedures. Unfortunately, it turned out that an originally planned implant was not suitable in approximately 2/3 of the patients because of inadequate alveolar conditions. These patients were subsequently treated by conventional orthodontic gap closure or adhesive prosthetics.
    Notes: Zusammenfassung Das therapeutische Repertoire zur Behandlung von Patienten mit fehlenden Zähnen wurde erheblich erweitert durch die Entwicklung moderner Implantationsmethoden. Wir haben die Behandlungsverläufe der Kinder, bei denen im Zeitraum von 1977 bis 1993 Implantate geplant wurden, einer retrospektiven Analyse unterzogen. Alle Patienten wurden kieferorthopädisch vorbehandelt. Leider zeigt sich, daß das ursprünglich geplante Implantat bei etwa zwei Drittel der Patienten wergen ungenügender Alveolarkammverhältnisse nicht zur Anwendung kommen konnte. Diese Patienten wurden in der Folge durch kieferorthopädischen Lückenschluß oder durch Adhäsivbrücken versorgt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02173757
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...