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Osseointegration of Ti implants in buccal alveolar bone defect filled with bioactive glasses in dog mandible
Author(s) -
De Oliveira Jabur R.,
Trivellato A.E.,
Peitl O.,
Da Rocha Barros V.M.
Publication year - 2009
Publication title -
oral surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.156
H-Index - 11
eISSN - 1752-248X
pISSN - 1752-2471
DOI - 10.1111/j.1752-248x.2009.01056.x
Subject(s) - buccal administration , osseointegration , mandible (arthropod mouthpart) , dentistry , implant , medicine , dental alveolus , molar , dental implant , surgery , botany , biology , genus
Aim: The aim of the present study was to investigate the amount of bone formation on titanium (Ti) implants in sites subjected to buccal alveolar crest defects and filled with different bone substitutes. Materials and methods: Mandibular premolars and first molars were extracted from five dogs. After 12 weeks, three implants (Neodent ® , implant size: 3.75 × 9.0 mm, Curitiba, PR, Brazil) were bilaterally placed (total of 30 implants) in sites with buccal alveolar bone defects (length 45 mm, height 6 mm depth, 4 mm) created in the mandible. Each implantation site was randomly treated with Biosilicate (novel highly bioactive glass‐ceramic), Bioglass 45S5 (Biogran ® , Implant Innovations, Barcelona, Spain), autogenous bone or no treatment. At 18 weeks after implantation, the hemi‐mandibles containing the implants were removed and processed for ground sections aiming to histological and histometric [bone‐implant contact (BIC), mineralised bone matrix between implant threads (BA) and bone matrix within mirror area (BMA)] analysis. Data were subjected to non‐parametric Kruskal–Wallis test. Results: The percentage of BIC, BA and mineralised BMA in the treated or non‐treated sites were not statistically different among the four experimental groups. Conclusion: These results indicate that the presence of the bone substitutes evaluated did not promote bone formation on Ti implants surface. In addition, tissue response to Biosilicate was similar to that of Bioglass 45S5 and autogenous bone.