OBJECTIVES. Intraoral harvesting of particulate autologous bone can be performed with different devices, such as bone scrapers or piezoelectric surgical blades. Aim of this in vitro study was to compare the efficacy in terms of quantity (weight) of a piezoelectric device versus a bone scraper, and to assess whether the bone quantity collected with the two methods was related to the operator's experience. MATERIALS AND METHODS. A total of 40 samples of bone particulate from cortical long bone of equine origin was collected, with a bone scraper (Micross®, Meta, Reggio Emilia, Italy) and a piezoelectric surgical device (Piezosurgery III®, Mectron SpA, Carasco, Genova, Italy). The sampling was carried out by two different groups of operators, group A (experts) and group B (non-experts). Each sample was collected in a preset time (60 sec) and was subsequently dried and weighed. The data obtained were analyzed using descriptive and statistical analysis and compared using the Wilcoxon test, assuming unequal variances (significance at 5%). Group A then collected further samples (a total of 40) for the sake of performance comparison, in terms of removed bone quantity by skilled hands in the same unit of time (analysis with Student's test, considered significant for p < 0.05). RESULTS. The average amount of bone particles collected with a piezoelectric device was significantly lower than the amount collected with a bone scraper (p < 0.05). It was also recognized that the data connected to bone scrapers include a statistical mode value which is not present in the data connected to piezoelectric devices. CONCLUSIONS. The use of a bone scraper allows a significantly greater amount of in vitro harvested bone particles, as compared to a piezoelectric device and appears to be a less operator-dependent method.
Semplicità ed efficacia d'impiego di due dispositivi per il prelievo di osso particolato: strumento piezoelettrico e scraper osseo
Bacci, C.;Berengo, M.;Stellini, E.
2015
Abstract
OBJECTIVES. Intraoral harvesting of particulate autologous bone can be performed with different devices, such as bone scrapers or piezoelectric surgical blades. Aim of this in vitro study was to compare the efficacy in terms of quantity (weight) of a piezoelectric device versus a bone scraper, and to assess whether the bone quantity collected with the two methods was related to the operator's experience. MATERIALS AND METHODS. A total of 40 samples of bone particulate from cortical long bone of equine origin was collected, with a bone scraper (Micross®, Meta, Reggio Emilia, Italy) and a piezoelectric surgical device (Piezosurgery III®, Mectron SpA, Carasco, Genova, Italy). The sampling was carried out by two different groups of operators, group A (experts) and group B (non-experts). Each sample was collected in a preset time (60 sec) and was subsequently dried and weighed. The data obtained were analyzed using descriptive and statistical analysis and compared using the Wilcoxon test, assuming unequal variances (significance at 5%). Group A then collected further samples (a total of 40) for the sake of performance comparison, in terms of removed bone quantity by skilled hands in the same unit of time (analysis with Student's test, considered significant for p < 0.05). RESULTS. The average amount of bone particles collected with a piezoelectric device was significantly lower than the amount collected with a bone scraper (p < 0.05). It was also recognized that the data connected to bone scrapers include a statistical mode value which is not present in the data connected to piezoelectric devices. CONCLUSIONS. The use of a bone scraper allows a significantly greater amount of in vitro harvested bone particles, as compared to a piezoelectric device and appears to be a less operator-dependent method.
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