Biomechanical evaluation of the interfacial strength of a chemically modified sandblasted and acid-etched titanium surface
Vorschaubild nicht verfügbar
Autor:innen
Ferguson, Stephen J.
Broggini, Nina
Wieland, Marco
Rupp, Frank
Geis-Gerstorfer, Jürgen
Cochran, David L.
Buser, Daniel
Autor:in (Körperschaft)
Publikationsdatum
06/2006
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Journal of Biomedical Materials Research Part A
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
78A
Ausgabe / Nummer
2
Seiten / Dauer
291 - 297
Patentnummer
Verlag / Herausgebende Institution
Wiley
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
The functional capacity of osseointegrated dental implants to bear load is largely dependent on the quality of the interface between the bone and implant. Sandblasted and acid-etched (SLA) surfaces have been previously shown to enhance bone apposition. In this study, the SLA has been compared with a chemically modified SLA (modSLA) surface. The increased wettability of the modSLA surface in a protein solution was verified by dynamic contact angle analysis. Using a well-established animal model with a splitmouth experimental design, implant removal torque testing was performed to determine the biomechanical properties of the bone-implant interface. All implants had an identical cylindrical shape with a standard thread configuration. Removal torque testing was performed after 2, 4, and 8 weeks of bone healing (n = 9 animals per healing period, three implants per surface type per animal) to evaluate the interfacial shear strength of each surface type. Results showed that the modSLA surface was more effective in enhancing the interfacial shear strength of implants in comparison with the conventional SLA surface during early stages of bone healing. Removal torque values of the modSLA-surfaced implants were 8-21% higher than those of the SLA implants (p = 0.003). The mean removal torque values for the modSLA implants were 1.485 N m at 2 weeks, 1.709 N m at 4 weeks, and 1.345 N m at 8 weeks; and correspondingly, 1.231 N m, 1.585 N m, and 1.143 N m for the SLA implants. The bone-implant interfacial stiffness calculated from the torque-rotation curve was on average 9-14% higher for the modSLA implants when compared with the SLA implants (p = 0.038). It can be concluded that the modSLA surface achieves a better bone anchorage during early stages of bone healing than the SLA surface; chemical modification of the standard SLA surface likely enhances bone apposition and this has a beneficial effect on the interfacial shear strength.
Schlagwörter
Biomechanical testing, Dental implant, Interface, Osseointegration, Surface chemistry, Wettability
Fachgebiet (DDC)
600 - Technik, Medizin, angewandte Wissenschaften
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1552-4965
1549-3296
1549-3296
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Nein
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
FERGUSON, Stephen J., Nina BROGGINI, Marco WIELAND, Michael DE WILD, Frank RUPP, Jürgen GEIS-GERSTORFER, David L. COCHRAN und Daniel BUSER, 2006. Biomechanical evaluation of the interfacial strength of a chemically modified sandblasted and acid-etched titanium surface. Journal of Biomedical Materials Research Part A. Juni 2006. Bd. 78A, Nr. 2, S. 291 – 297. DOI 10.1002/jbm.a.30678. Verfügbar unter: https://irf.fhnw.ch/handle/11654/45803