The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
P Maurer - One of the best experts on this subject based on the ideXlab platform.
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material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation
Clinical Oral Implants Research, 2013Co-Authors: Ashkan Rashad, Pooyan Sadreshkevari, Markus Weuster, Inge Schmitz, Nora Prochnow, P MaurerAbstract: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.
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Material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation.
Clinical oral implants research, 2012Co-Authors: Ashkan Rashad, Markus Weuster, Inge Schmitz, Nora Prochnow, Pooyan Sadr-eshkevari, P MaurerAbstract: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. 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. 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. 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. © 2012 John Wiley & Sons A/S.
Ashkan Rashad - One of the best experts on this subject based on the ideXlab platform.
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material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation
Clinical Oral Implants Research, 2013Co-Authors: Ashkan Rashad, Pooyan Sadreshkevari, Markus Weuster, Inge Schmitz, Nora Prochnow, P MaurerAbstract: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.
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Material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation.
Clinical oral implants research, 2012Co-Authors: Ashkan Rashad, Markus Weuster, Inge Schmitz, Nora Prochnow, Pooyan Sadr-eshkevari, P MaurerAbstract: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. 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. 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. 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. © 2012 John Wiley & Sons A/S.
Alberto De Biase - One of the best experts on this subject based on the ideXlab platform.
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piezoelectric implant Site Preparation influence of handpiece movements on temperature elevation
Materials, 2020Co-Authors: Luca Lamazza, Marco Lollobrigida, Iole Vozza, Luigi Palmieri, Claudio Stacchi, Teresa Lombardi, Alberto De BiaseAbstract:Piezoelectric devices are widely used in oral surgical procedures, including implant Site Preparation. However, little is known about the influence of working movement on temperature elevation in bone. The aim of this study was to assess the effects of two different working cycles on temperature elevation during piezoelectric implant Site Preparation. Sixty osteotomies at a depth of 10 mm were performed on bone blocks of bovine ribs using a piezoelectric tip with external irrigation (IM1s, Mectron Medical Technology, Carasco, Italy). A mechanical positioning device was used to guarantee reproducible working and measuring conditions. Two different working cycles, of 4 and 6 s, respectively, were tested, including both longitudinal and rotational movements. Temperature was recorded in real time with a fiber optic thermometer and applied pressure was maintained under 150 g. For each test, the highest recorded temperature (Tmax) and the mean temperature recorded from 30 s before to 30 s after the highest recorded temperature (T±30) were extrapolated. Tests duration was also recorded. Both Tmax and T±30 were significantly higher in the ‘6 s cycles’ group than the ‘4 s cycles’ group (42.44 ± 7.3 °C vs. 37.24 ± 4.6 °C, p = 0.002; 37.24 ± 4.6 °C vs. 33.30 ± 3.3 °C, p = 0.003). Test duration was also significantly higher using 6 s cycles compared to 4 s cycles (143.17 ± 29.4 s vs. 119.80 ± 36.4 s, p = 0.002). The results of this study indicate that working cycles of 4 s effectively reduce heat generation and working time during piezoelectric implant Site Preparation.
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identification of possible factors influencing temperatures elevation during implant Site Preparation with piezoelectric technique
Annali di stomatologia, 2014Co-Authors: Luca Lamazza, Marco Lollobrigida, Domenica Laurito, Orlando Brugnoletti, Girolamo Garreffa, Alberto De BiaseAbstract:Overheating during implant Site Preparation negatively affects the osseointegration process as well the final outcome of implant rehabilitations. Piezoelectric techniques seem to provide to a gentle implant Preparation although few scientific reports have investigated the heat generation and its underlying factors. To investigate, through a proper methodological approach, the main factors influencing temperature rise during piezoelectric implant Site Preparation. Different piezoelectric tips (IM1s, IM2, P2-3, IM3, Mectron Medical Technology, Carasco, Italy) have been tested. The experimental set-up consisted in a mechanical positioning device equipped with a load cell and a fluoroptic thermometer. The first tip of the sequence (IM1s) generated the highest temperature increasing (ΔT). The diamond tips (IM1s and P2-3) determined higher ΔT values than the smooth tips (IM2 and IM3). Further tests with IM1s suggested that the temperature elevation during the first thirty seconds may be predictive of the maximal temperature as well as of the overall thermal impact. Working load, working movements management and bone features resulted to be the main factors influencing temperature rise during piezoelectric implant Site Preparation. Irrigant temperature and clogging effect may also synergically contribute to the heat generation.
Nora Prochnow - One of the best experts on this subject based on the ideXlab platform.
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material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation
Clinical Oral Implants Research, 2013Co-Authors: Ashkan Rashad, Pooyan Sadreshkevari, Markus Weuster, Inge Schmitz, Nora Prochnow, P MaurerAbstract: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.
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Material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation.
Clinical oral implants research, 2012Co-Authors: Ashkan Rashad, Markus Weuster, Inge Schmitz, Nora Prochnow, Pooyan Sadr-eshkevari, P MaurerAbstract: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. 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. 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. 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. © 2012 John Wiley & Sons A/S.
Inge Schmitz - One of the best experts on this subject based on the ideXlab platform.
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material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation
Clinical Oral Implants Research, 2013Co-Authors: Ashkan Rashad, Pooyan Sadreshkevari, Markus Weuster, Inge Schmitz, Nora Prochnow, P MaurerAbstract: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.
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Material attrition and bone micromorphology after conventional and ultrasonic implant Site Preparation.
Clinical oral implants research, 2012Co-Authors: Ashkan Rashad, Markus Weuster, Inge Schmitz, Nora Prochnow, Pooyan Sadr-eshkevari, P MaurerAbstract: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. 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. 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. 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. © 2012 John Wiley & Sons A/S.
