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Blood absorption capacity of different xenograft bone blocks
EAO Online Library. SIMOES A. Oct 9, 2018; 232555; P-BR-150
Andreia SIMOES
Andreia SIMOES
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When particulated grafts are used mechanical stability can be compromised due to soft tissue pressure.**The introduction of the xenograft bone blocks may represent an alternative for the drawbacks of the particulated grafts and the autogenous bone blocks. **In order to obtain predictable bone regeneration, some principles are crucial for the success of the procedure like the primary wound closure, angiogenesis, space creation maintmaintenance and ststability of the initial blood clot.The objective of this in vitro study was to compare the blood absorption capacity of two commercial available collagenated xenograft block materials.Two brands of xenograft block materials were used (Osteobiol and Smartbone). Five samples of each brand were analyzed, making a total of 10 observations. Human blood was used as the adsorption liquid for the present experiment. The time period, in which the block remains in contact with the blood, was measured with a stopwatch and the weight of each block was registered at 30 seconds (t1), 60 seconds (t2) and 5 minutes (t3). The xenograft blocks were evaluated according to their absorption capacity. Statistical analyses were performed using a nonparametric model of Brunner-Langer and post-hoc comparisons with Bonferroni corrections. A SPSS15.0 and R.3.0.2 programs were used, with a significance level of 5%.Only at 30 seconds, the Osteobiol and Smartbone did not registered any significant difference in terms of absorption capacity (p=0.011). However, at 60 seconds and 5 minutes, the Osteobiol absorbed significantly more blood than Smartbone (p=0.0079+ p=0.00016), respectively. Osteobiol blocks were superior to Smartbone blocks after the 5 minutes of this in vitro study.
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