Lateral ridge augmentation and implant placement: an experimental study evaluating implant osseointegration in different augmentation materials in the canine mandible.
The present study investigated the osseointegration of dental implants with a titanium plasma-sprayed surface (TPS) in regenerated and native bone in an experimental dog study. Initially, lateral bone defects were created in the alveolar ridge on both sides of the mandible. Two months later, lateral ridge augmentation was performed with (1) autogenous corticocancellous block grafts, (2) autogenous corticocancellous block grafts and e-PTFE membrane, (3) tricalcium phosphate particles and e-PTFE membrane, or (4) canine-derived demineralized freeze-dried bone allograft particles and e-PTFE membrane. After 4 months, membranes were removed, and non-submerged titanium implants were placed in regenerated bone (test implants) and in native bone (control implants). Two months later, the animals were sacrificed and non-decalcified orofacial sections were evaluated histometrically. All implants demonstrated high percentages (59% to 75%) of bone-to-implant contact, with no significant differences across the various treatment groups. The different grafting techniques did not significantly influence the location of first bone-to-implant contact and the horizontal bone width at the most coronal bone level.
von Arx
T
T
Department of Oral Surgery, School of Dental Medicine, University of Berne, Switzerland. thomas.vonarx@zmk.unibe.ch
Cochran
D L
DL
Hermann
J S
JS
Schenk
R K
RK
Higginbottom
F L
FL
Buser
D
D
D000540:Alveolar Ridge Augmentation / Q000379:methods*; D000818:Animals; D001672:Biocompatible Materials / Q000627:therapeutic use; D001861:Bone Regeneration / Q000502:physiology; D018786:Bone Substitutes / Q000627:therapeutic use*; D016025:Bone Transplantation / Q000379:methods* / Q000473:pathology; D002130:Calcium Phosphates / Q000627:therapeutic use; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D004285:Dogs; D005500:Follow-Up Studies; D016557:Guided Tissue Regeneration, Periodontal; D008334:Mandible / Q000473:pathology / Q000601:surgery*; D008567:Membranes, Artificial; D016348:Osseointegration / Q000502:physiology*; D011138:Polytetrafluoroethylene; D013223:Statistics as Topic; D013499:Surface Properties; D014021:Tissue Preservation; D014025:Titanium; D014182:Transplantation, Autologous; D014184:Transplantation, Homologous
D001672:Biocompatible Materials; D018786:Bone Substitutes; D002130:Calcium Phosphates; D015921:Dental Implants; D008567:Membranes, Artificial; C485817:beta-tricalcium phosphate; D011138:Polytetrafluoroethylene; D014025:Titanium; C018392:tricalcium phosphate