Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9992727 | American Journal of Orthodontics and Dentofacial Orthopedics | 2005 | 9 Pages |
Abstract
Introduction: Bone response to orthodontic loading was compared histomorphometrically around 2 different types of osseointegrated implants (porous surfaced and machined threaded) to determine their suitability for orthodontic anchorage. Methods: Five beagles each received 3 implants of each design in contralateral mandibular locations. After a 6-week initial healing period, abutments were placed, and, 1 week later, the 2 mesial implants on each side were orthodontically loaded for 22 weeks. All implants remained osseointegrated throughout orthodontic loading except for 1 threaded implant that loosened. Light miscroscopy and back-scattered scanning electron microscopy were used to compare responses around the 2 implant designs. Results: Porous-surfaced implants had higher marginal bone levels (P ± .025) and less relative implant displacement than threaded implants. Conclusions: Differences in implant surface design can lead to differences in peri-implant bone height and bone-to-implant contact. Porous-surfaced implants might be successful as orthodontic anchorage units.
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Authors
Rodrigo Oyonarte, Robert M. Pilliar, Douglas Deporter, Donald G. Woodside,