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- Truedsson, Anna, et al.
(författare)
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Bone substitute as an on-lay graft on rat tibia
- 2010
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Ingår i: Clinical Oral Implants Research. - : Wiley. - 1600-0501 .- 0905-7161. ; 21:4, s. 424-429
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To investigate the capacity of Cerament (R), an injectable bone substitute, to guide bone generation from a cortical surface. Materials and method Cerament (R) was applied to the cortical surface of rat tibiae and investigated histologically after 3, 6 and 12 weeks, using a procedure similar to that performed in sham-operated rats. Results In both groups, the thickness of the bone cortex increased significantly from 473 +/- 58 mu m (mean +/- SD) at day 0 to 1193 +/- 255 mu m (Cerament (R)) and 942 +/- 323 mu m (sham) after 3 weeks. In the Cerament (R) group, the new bone thickness remained constant (1258 +/- 288 mu m) until the end of the experiment at 12 weeks, while the sham group demonstrated a return to initial cortical thickness (591 +/- 73 mu m) at 12 weeks. The newly formed bone in the Cerament (R) group was highly trabecular after 3 weeks but attained a normal trabecular structure of the cortex after 12 weeks. Conclusion Cerament (R) may guide bone generation from an intact cortical bone surface. Although bone remodeling speed may differ between rats and humans, our study indicates that Cerament (R) may become a useful alternative to autologous bone, both to fill defects and to increase bone volume by cortical augmentation. To cite this article:Truedsson A, Wang J-S, Lindberg P, Gordh M, Sunzel B, Warfvinge G. Bone substitute as an on-lay graft on rat tibia. Clin. Oral Impl. Res. 21, 2010; 424-429.doi: 10.1111/j.1600-0501.2009.01875.x.
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| 2. |
- Truedsson, Anna, et al.
(författare)
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Osseointegration of Titanium Implants in Onlay of Cerament™, a New Ceramic Bone Substitute.
- 2016
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Ingår i: Journal of Functional Biomaterials. - : MDPI AG. - 2079-4983. ; 7:1
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Tidskriftsartikel (refereegranskat)abstract
- The purpose was to investigate whether a new biphasic and injectable ceramic bone substitute Cerament™ that rapidly remodels to bone, may contribute to the retention of titanium implant screws during the healing period, and to analyze the pattern of bone formation around titanium implants.Titanium screws were implanted in rat tibiae and embedded with or without Cerament™ on the cortical surface. Torsional resistance was measured after 1 day, and after 6 and 12 weeks. Implant areas without bone substitute were analyzed histologically for comparison. The torsional resistance increased over time as the screws were osseointegrated. There was no difference in resistance between screws embedded in the bone substitute and control screws. The bone apposition was more pronounced on the proximal side of the screw than on the distal side. Cerament™ is capable of conducting bone growth from a cortical bone surface. The newly formed bone in this application does not significantly add to the osseointegrative strength of the implant screw, as measured by torque resistance, during the first 12 weeks.
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