Material attrition and bone micromorphology after conventional and ultrasonic implant site preparation
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Material attrition and bone micromorphology after conventional and ultrasonic implant site preparation. / Rashad, Ashkan; Sadr-Eshkevari, Pooyan; Weuster, Markus; Schmitz, Inge; Prochnow, Nora; Maurer, Peter.
in: Clinical oral implants research, Jahrgang 24 Suppl A100, 08.2013, S. 110-4.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Material attrition and bone micromorphology after conventional and ultrasonic implant site preparation
AU - Rashad, Ashkan
AU - Sadr-Eshkevari, Pooyan
AU - Weuster, Markus
AU - Schmitz, Inge
AU - Prochnow, Nora
AU - Maurer, Peter
N1 - © 2012 John Wiley & Sons A/S.
PY - 2013/8
Y1 - 2013/8
N2 - OBJECTIVES: Little is known about the recently introduced ultrasonic implant site preparation. The purpose of this study was to compare material attrition and micromorphological changes after ultrasonic and conventional implant site preparations.MATERIAL AND METHODS: Implant site preparations were performed on fresh bovine ribs using one conventional (Straumann, Freiburg, Germany) and two ultrasonic (Piezosurgery; Mectron Medical Technology, Carasco, Italy and Variosurg; NSK, Tochigi, Japan) systems with sufficient saline irrigation. Sections were examined by environmental scanning electron microscopy (ESEM). Energy-dispersive X-ray spectroscopy (EDX) was performed to evaluate the metal attrition within the bone and the irrigation fluid.RESULTS ESEM: After conventional osteotomy, partially destroyed trabecular structures of the cancellous bone that were loaded with debris were observed, whereas after ultrasonic implant site preparations, the anatomic structures were preserved. EDX: None of the implant site preparation methods resulted in metal deposits in the adjacent bone structures. However, within the irrigation liquid, there was significantly higher metal attrition with ultrasonic osteotomy (P < 0.0001 and P < 0.0001 for Mectron and NSK, respectively). Whereas for Straumann system used, 15.5% of the SEM/EDX findings were drill-origin metals, this percentage increased to 37.3% and 37.9% with the application of Mectron and NSK, respectively.CONCLUSIONS: Ultrasonic implant site preparation is associated with the preservation of bone microarchitecture and with the increased attrition of metal particles. Therefore, copious irrigation seems to be even more essential for ultrasonic implant site preparation than for the conventional method.
AB - OBJECTIVES: Little is known about the recently introduced ultrasonic implant site preparation. The purpose of this study was to compare material attrition and micromorphological changes after ultrasonic and conventional implant site preparations.MATERIAL AND METHODS: Implant site preparations were performed on fresh bovine ribs using one conventional (Straumann, Freiburg, Germany) and two ultrasonic (Piezosurgery; Mectron Medical Technology, Carasco, Italy and Variosurg; NSK, Tochigi, Japan) systems with sufficient saline irrigation. Sections were examined by environmental scanning electron microscopy (ESEM). Energy-dispersive X-ray spectroscopy (EDX) was performed to evaluate the metal attrition within the bone and the irrigation fluid.RESULTS ESEM: After conventional osteotomy, partially destroyed trabecular structures of the cancellous bone that were loaded with debris were observed, whereas after ultrasonic implant site preparations, the anatomic structures were preserved. EDX: None of the implant site preparation methods resulted in metal deposits in the adjacent bone structures. However, within the irrigation liquid, there was significantly higher metal attrition with ultrasonic osteotomy (P < 0.0001 and P < 0.0001 for Mectron and NSK, respectively). Whereas for Straumann system used, 15.5% of the SEM/EDX findings were drill-origin metals, this percentage increased to 37.3% and 37.9% with the application of Mectron and NSK, respectively.CONCLUSIONS: Ultrasonic implant site preparation is associated with the preservation of bone microarchitecture and with the increased attrition of metal particles. Therefore, copious irrigation seems to be even more essential for ultrasonic implant site preparation than for the conventional method.
KW - Animals
KW - Cattle
KW - Dental Implantation, Endosseous
KW - Dental Implants
KW - Implants, Experimental
KW - Microscopy, Electron, Scanning
KW - Osteotomy
KW - Piezosurgery
KW - Ribs
KW - Spectrometry, X-Ray Emission
KW - Surface Properties
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
U2 - 10.1111/j.1600-0501.2011.02389.x
DO - 10.1111/j.1600-0501.2011.02389.x
M3 - SCORING: Journal article
C2 - 22248387
VL - 24 Suppl A100
SP - 110
EP - 114
JO - CLIN ORAL IMPLAN RES
JF - CLIN ORAL IMPLAN RES
SN - 0905-7161
ER -
