Reference : The influence of micro-motion on the tissue differentiation around immediately loaded...
Scientific journals : Article
Human health sciences : Surgery
Life sciences : Microbiology
Life sciences : Biochemistry, biophysics & molecular biology
Engineering, computing & technology : Computer science
http://hdl.handle.net/2268/70313
The influence of micro-motion on the tissue differentiation around immediately loaded cylindrical turned titanium implants.
English
Duyck, Joke mailto [Department of Prosthetic Dentistry, BIOMAT Research Group, Catholic University of Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium > > > > > >]
Vandamme, K. [Department of Prosthetic Dentistry, BIOMAT Research Group, Catholic University of Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium > > > > > >]
Geris, Liesbet [Department of Mechanical Engineering, Division of Biomechanics and Engineering Design, Catholic University of Leuven, Celestijnenlaan 100A, B-3001 Heverlee, Belgium > > > >]
Van Oosterwyck, H. [Department of Mechanical Engineering, Division of Biomechanics and Engineering Design, Catholic University of Leuven, Celestijnenlaan 100A, B-3001 Heverlee, Belgium > > > > > >]
De Cooman, M. [Department of Electrotechnics, ESAT-MICAS, Catholic University of Leuven, Kasteelpark Arenberg 10, B-3001 Heverlee, Belgium > > > > > >]
Vandersloten, J. [Department of Mechanical Engineering, Division of Biomechanics and Engineering Design, Catholic University of Leuven, Celestijnenlaan 100A, B-3001 Heverlee, Belgium > > > > > >]
Puers, R. [Department of Electrotechnics, ESAT-MICAS, Catholic University of Leuven, Kasteelpark Arenberg 10, B-3001 Heverlee, Belgium > > > > > >]
Naert, I. [Department of Prosthetic Dentistry, BIOMAT Research Group, Catholic University of Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium > > > > > >]
2006
Archives of Oral Biology
Pergamon Press
51
1
1-9
Yes (verified by ORBi)
International
0003-9969
Oxford
United Kingdom
[en] Animals ; Bone Marrow Cells/cytology ; Dental Implantation, Endosseous ; Dental Implants ; Female ; Models, Animal ; Movement ; Osseointegration ; Rabbits ; Tibia/anatomy & histology ; Time Factors ; Titanium ; Weight-Bearing
[en] OBJECTIVE: The aim of this study was to evaluate the effect of various degrees of implant displacement on the tissue differentiation around immediately loaded cylindrical turned titanium implants. DESIGN: The experiments were conducted in repeated sampling bone chambers placed in the tibia of 10 rabbits. Tissues could grow into the bone chambers via perforations. Due to its double structure, tissues inside the chamber could be harvested leaving the chamber intact. This allowed several experiments within the same animal. The chambers contained a cylindrical turned titanium implant that was loaded in a well-controlled manner. In each of the 10 chambers, four experiments were conducted with the following test conditions: immediate implant loading by inducing 0 (control), 30, 60 and 90 microm implant displacement, 800 cycles per day at a frequency of 1 Hz, twice a week during a period of 6 weeks. Histological and histomorphometrical analyses were performed on methylmethacrylate histological sections. An ANOVA was conducted on the dataset. RESULTS: The total tissue volume was significantly lowest in the unloaded control condition. The bone volume fraction on the other hand, was significantly larger in the unloaded and 90 microm implant displacement, compared to the 30 microm implant displacement. Bone density increased with increasing micro-motion with significantly higher values for the 60 microm- and 90 microm-test conditions compared to the unloaded situation. The chance to have bone-to-implant contact decreased in case of micro-motion at the tissues-implant interface. CONCLUSION: The magnitude of implant displacement had a statistically significant effect on the tissue differentiation around immediately loaded cylindrical turned titanium implants. Implant micro-motion had a detrimental effect on the bone-to-implant contact in an immediate loading regimen.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/70313
10.1016/j.archoralbio.2005.04.003

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