The anchorage of Brånemark and ITI implants of different lengths. I. An experimental study in the canine mandible
- 9 September 2003
- journal article
- Published by Wiley in Clinical Oral Implants Research
- Vol. 14 (5), 593-600
- https://doi.org/10.1034/j.1600-0501.2003.120908.x
Abstract
The anchorage of machined Brånemark and ITI TPS-coated implants of various lengths was investigated in an animal model. Brånemark fixtures 7 and 10 mm long and ITI implants 6 and 10 mm long were inserted in the mandible of dogs and were reverse-torqued after 3 months of healing. The failing mode was different for the two implant systems. For the ITI implants, loosening coincided with the peak reverse-torque values. For the Brånemark fixtures, two reverse-torque values were identified and recorded, a 'start to rotate' and a peak value. The 'start to rotate' values for the 7 and 10 mm Brånemark fixtures were 36.67 and 38.57 Ncm, respectively, the peak values were 61.88 and 69.13 Ncm. The increase in implant length from 7 to 10 mm did not significantly improve the anchorage. The mean reverse-torque values for the 6- and 10-mm ITI implants were 104.66 and 192.25 Ncm, respectively; the difference was statistically significant. The mean removal torque of the 6-mm ITI implant was higher than the 7- and 10-mm Brånemark implants. It is suggested that the distinct anchorage magnitude and the distinct loosening patterns registered for both implant systems might be related to the various surface states. The latter might account for the different failure tendencies mentioned in the literature for short Brånemark and ITI implants.Keywords
This publication has 22 references indexed in Scilit:
- The use of reduced healing times on ITI® implants with a sandblasted and acid‐etched (SLA) surface:Clinical Oral Implants Research, 2002
- Early loading of sandblasted and acid‐etched (SLA) implants: a prospective split‐mouth comparative studyClinical Oral Implants Research, 2001
- Basic surgical principles with ITI implants NoteClinical Oral Implants Research, 2000
- Osseointegration enhanced by chemical etching of the titanium surface. A torque removal study in the rabbit.Clinical Oral Implants Research, 1997
- Long‐term evaluation of non‐submerged ITI implants. Part 1: 8‐year life table analysis of a prospective multi‐center study with 2359 implants.Clinical Oral Implants Research, 1997
- Retrospective multicenter analysis of 3i endosseous dental implants placed over a five‐year periodClinical Oral Implants Research, 1996
- Anchorage of TiO2‐blasted, HA‐coated, and machined implants: An experimental study with rabbitsJournal of Biomedical Materials Research, 1995
- A histomorghometric study of screw‐shaped and removal torque titanium implants with three different surface topographiesClinical Oral Implants Research, 1995
- Experience with ITI osseointegrated implants at five centres in the UKBritish Journal of Oral and Maxillofacial Surgery, 1992
- Fixture design and overload influence marginal bone loss and future success in the Brånemark® systemClinical Oral Implants Research, 1992