The effect of different surgical drilling procedures on full laser-etched microgrooves surface-treated implants: an experimental study in sheep

Objectives To evaluate the influence of instrumentation technique on the early osseointegration histomorphometrics and biomechanical fixation of fully laser‐etched microgrooves implant surfaces in a sheep model. Material and Methods Six sheep were subjected to bilateral hip surgeries 3 and 6 weeks b...

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Bibliographic Details
Published in:Clinical oral implants research 2014-09, Vol.25 (9), p.1072-1077
Main Authors: Jimbo, Ryo, Tovar, Nick, Yoo, Daniel Y., Janal, Malvin N., Anchieta, Rodolfo B., Coelho, Paulo G.
Format: Article
Language:English
Subjects:
Animals
Biomechanical Phenomena
Dental Implantation, Endosseous - methods
Dental Implants
Dentistry
histology
implant surface
Implants, Experimental
laser etching
Lasers
Osseointegration
Pelvic Bones - surgery
removal torque
Sheep, Domestic
Surface Properties
Torque
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Summary:Objectives To evaluate the influence of instrumentation technique on the early osseointegration histomorphometrics and biomechanical fixation of fully laser‐etched microgrooves implant surfaces in a sheep model. Material and Methods Six sheep were subjected to bilateral hip surgeries 3 and 6 weeks before euthanasia. A total of 48 implants (∅4.5 mm, 8 mm in length) were distributed among four sites (8 per animal) and placed in bone sites drilled to 4.6 mm (reamer), 4.1 mm (loose), 3.7 mm (medium) and 3.2 mm (tight) in diameter. After healing, the animals were euthanized and half of the implants were biomechanically tested, while the remainder was subjected to non‐decalcified histologic processing. The histomorphometric parameters assessed were bone‐to‐implant contact (BIC) and bone area fraction occupancy (BAFO). Statistical analysis was performed using a mixed‐model analysis of variance with significance level set at P 
ISSN:0905-7161
1600-0501
1600-0501
DOI:10.1111/clr.12216