Experimental Study Regarding the Comparative Behavior of Three Osteoconductive Bone Graft Substitutes

Author(s):  
P.D. Sirbu ◽  
R. Asaftei ◽  
M. Danciu ◽  
R. Mihaila ◽  
Luminita Simion ◽  
...  
1990 ◽  
Vol 25 (2) ◽  
pp. 545
Author(s):  
Ik Dong Kim ◽  
Poong Taek Kim ◽  
Byung Chul Park ◽  
Young Wook Choi ◽  
Young Goo Lyu ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Hanna Tiainen ◽  
Anders Verket ◽  
Håvard J. Haugen ◽  
S. Petter Lyngstadaas ◽  
Johan Caspar Wohlfahrt

Despite being considered noncritical size defects, extraction sockets often require the use of bone grafts or bone graft substitutes in order to facilitate a stable implant site with an aesthetically pleasing mucosal architecture and prosthetic reconstruction. In the present study, the effect of novel TiO2scaffolds on dimensional ridge preservation was evaluated following their placement into surgically modified extraction sockets in the premolar region of minipig mandibles. After six weeks of healing, the scaffolds were wellintegrated in the alveolar bone, and the convex shape of the alveolar crest was preserved. The scaffolds were found to partially preserve the dimensions of the native buccal and lingual bone walls adjacent to the defect site. A tendency towards more pronounced vertical ridge resorption, particularly in the buccal bone wall of the nongrafted alveoli, indicates that the TiO2scaffold may be used for suppressing the loss of bone that normally follows tooth extraction.


2016 ◽  
Vol 25 (4) ◽  
pp. 509-516 ◽  
Author(s):  
Zorica Buser ◽  
Darrel S. Brodke ◽  
Jim A. Youssef ◽  
Hans-Joerg Meisel ◽  
Sue Lynn Myhre ◽  
...  

The purpose of this review was to compare the efficacy and safety of synthetic bone graft substitutes versus autograft or allograft for the treatment of lumbar and cervical spinal degenerative diseases. Multiple major medical reference databases were searched for studies that evaluated spinal fusion using synthetic bone graft substitutes (either alone or with an autograft or allograft) compared with autograft and allograft. Randomized controlled trials (RCT) and cohort studies with more than 10 patients were included. Radiographic fusion, patient-reported outcomes, and functional outcomes were the primary outcomes of interest. The search yielded 214 citations with 27 studies that met the inclusion criteria. For the patients with lumbar spinal degenerative disease, data from 19 comparative studies were included: 3 RCTs, 12 prospective, and 4 retrospective studies. Hydroxyapatite (HA), HA+collagen, β-tricalcium phosphate (β-TCP), calcium sulfate, or polymethylmethacrylate (PMMA) were used. Overall, there were no differences between the treatment groups in terms of fusion, functional outcomes, or complications, except in 1 study that found higher rates of HA graft absorption. For the patients with cervical degenerative conditions, data from 8 comparative studies were included: 4 RCTs and 4 cohort studies (1 prospective and 3 retrospective studies). Synthetic grafts included HA, β-TCP/HA, PMMA, and biocompatible osteoconductive polymer (BOP). The PMMA and BOP grafts led to lower fusion rates, and PMMA, HA, and BOP had greater risks of graft fragmentation, settling, and instrumentation problems compared with iliac crest bone graft. The overall quality of evidence evaluating the potential use and superiority of the synthetic biological materials for lumbar and cervical fusion in this systematic review was low or insufficient, largely due to the high potential for bias and small sample sizes. Thus, definitive conclusions or recommendations regarding the use of these synthetic materials should be made cautiously and within the context of the limitations of the evidence.


2015 ◽  
Vol 1087 ◽  
pp. 429-433 ◽  
Author(s):  
Rusnah Mustaffa ◽  
Mohd Reusmaazran Mohd Yusof ◽  
Yusof Abdullah

In Malaysia recently, it was found that cockle shell (Anadara granosa) is a potential source of biomaterial for bone repair. It is the most abundant sea species cultured in Malaysia. A possible advantage of using cockle shell as a biomaterial is that they may act as an antilog of calcium carbonate. Malaysian Nuclear Agency took this challenge to develop synthetic bone graft from natural cockle shell. To date, the artificial bone graft substitutes developed from hydroxyapatite (Ca10(PO4)6(OH)2) a bio ceramic is similar to the mineral constituent of human bone. The structure and the composition of hydroxyapatite (HA) are similar to the mineral phase of bone and, its bioactivity and biocompatibility makes it a preferred bone graft.


Microsurgery ◽  
2001 ◽  
Vol 21 (4) ◽  
pp. 131-134 ◽  
Author(s):  
Cristina Garusi ◽  
Luca Calabrese ◽  
Gioacchino Giugliano ◽  
Giovanni Mazzarol ◽  
Stefano Podrecca ◽  
...  

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