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.
| Original language | English |
|---|---|
| Pages (from-to) | 173-181 |
| Number of pages | 9 |
| Journal | American Journal of Orthodontics and Dentofacial Orthopedics |
| Volume | 128 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 2005 |
| Externally published | Yes |
Bibliographical note
Funding Information:Partially funded by the Canadian Institutes for Health Research and the American Association of Orthodontists Foundation (Biomedical Research Award 2001).