Removal Torque Values of Titanium Implants in the Maxilla of Miniature Pigs

Daniel Buser, Thomas Nydegger, Hans Peter Hirt, David L Cochran, Lutz Peter Nolte

Research output: Contribution to journalArticle

230 Citations (Scopus)

Abstract

The purpose of this study was to compare side-by-side two different titanium screw-type implants in the maxillae of miniature pigs. The test implants had a machined and acid-etched surface (Osseotite) whereas the control implants were sandblasted and acid-etched (SLA). After 4, 8, and 12 weeks of healing, removal torque testing was performed to evaluate the shear strength of the bone-implant interface for both implant types. The results demonstrated significant differences between both implant types (F < .01). Osseotite implants revealed mean removal torque values (RTV) of 62.5 Ncm at 4 weeks, 87.6 Ncm at 8 weeks, and 95.7 Ncm at 12 weeks of healing. In contrast, the SLA implants demonstrated mean RTV of 109.6 Ncm, 196.7 Ncm, and 186.8 Ncm at corresponding healing periods. The mean RTV for SLA implants was 75% to 125% higher than for Osseotite implants up to 3 months of healing.

Original languageEnglish (US)
Pages (from-to)611-619
Number of pages9
JournalInternational Journal of Oral and Maxillofacial Implants
Volume13
Issue number5
StatePublished - 1998

Fingerprint

Maxilla
Torque
Titanium
Swine
Acids
Shear Strength

Keywords

  • Interface shear strength
  • Osseotite surface
  • Removal torque values
  • Sandblasted and acid-etched surface
  • SLA surface
  • Titanium implants

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Removal Torque Values of Titanium Implants in the Maxilla of Miniature Pigs. / Buser, Daniel; Nydegger, Thomas; Hirt, Hans Peter; Cochran, David L; Nolte, Lutz Peter.

In: International Journal of Oral and Maxillofacial Implants, Vol. 13, No. 5, 1998, p. 611-619.

Research output: Contribution to journalArticle

Buser, Daniel ; Nydegger, Thomas ; Hirt, Hans Peter ; Cochran, David L ; Nolte, Lutz Peter. / Removal Torque Values of Titanium Implants in the Maxilla of Miniature Pigs. In: International Journal of Oral and Maxillofacial Implants. 1998 ; Vol. 13, No. 5. pp. 611-619.
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