To assess the efficacy of periodontally diseased tooth roots used as autografts for lateral ridge augmentation and two-stage early osseointegration of titanium implants.
Material & methods:
Ligature-induced periodontitis lesions were established at the maxillary premolars in n=8 foxhounds. Extracted, scaled and root planned premolar roots (PM-P) as well as retromolar cortical autogenous bone (AB) blocks were used for horizontal ridge augmentation of mandibular chronic-type defects. At 12 weeks, titanium implants were inserted and left to heal for another 3 weeks. Histological analyses included crestal ridge width - CW; augmented area - AA and bone-to-implant contact - BIC.
Both PM-P and AB grafts were gradually organized and replaced by newly formed bone. Median CW (PM-P: 3.83 vs. AB: 3.67 mm), AA (PM-P: 10.18 vs. AB: 9.82 mm(2) ) and BIC (PM-P: 50.00 vs. AB: 35.21%) values did not reach statistical significance between groups (p>0.05, respectively). Histologically, PM-P grafts were not associated with any inflammatory cell infiltrates.
PM-P autografts may reveal a structural and biological potential to serve as an alternative autograft to AB. This article is protected by copyright. All rights reserved.