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Histological Evaluation of Bone Formation Adjacent to Dental Implants with a Novel Apical Chamber Design: Preliminary Data in the Rabbit Model
Author(s) -
Meirelles Luiz,
Brånemark PerIngvar,
Albrektsson Tomas,
Feng Changyong,
Johansson Carina
Publication year - 2015
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12139
Subject(s) - dentistry , tibia , bone resorption , implant , medicine , bone formation , resorption , femur , biomedical engineering , anatomy , surgery , pathology , endocrinology
Abstract Background Wound healing events after implant placement will vary according to the extent of the necrotic zone. Purpose The goal of the present study was to evaluate bone healing around titanium implants with a novel apical chamber design. Materials and Methods Titanium implants grade 4 were turned with different apex design. Control implants had a self tapping design with centric cutting grooves. Test implants exhibited eccentric cutting grooves interconnected by a hollow chamber. A total of 60 implants were installed in the femur/tibia of 10 rabbits for histological analysis. Results After 1 week, immature bone formation started at the cortical level of the test implants associated to scalloped contours indicative of bone resorption. Control implants failed to show new bone formation, and the space within the threads was filled mainly by red blood cells and surgical debris. Bone contact values showed no difference after 1 week, and significant higher values for test implants showed likewise after 4 weeks compared with control implants in the tibia. Conclusion This experimental study verifies the beneficial effect of bone formation in the chamber at the apical part of the fixture coupled to a faster bone healing to implants placed in dense bone.