Ashkan Rashad1,2, Stefan Schwan3, Alireza Nasirpour4, Inge Schmitz5, Henning Hanken2, Reinhard E Friedrich6, Martin Gosau2. 1. Department of Oral, Maxillofacial and Facial Plastic Surgery, RWTH Aachen University Hospital, Aachen, Germany. 2. Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. 3. Fraunhofer Institute for Microstructure of Materials and Systems (IMWS), Halle (Saale), Germany. 4. Department of Oral and Maxillofacial Surgery, Tehran University of Medical Sciences, Tehran, Iran. 5. Department of Pathology, Ruhr University Bochum, Bochum, Germany. 6. Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; rfriedrich@uke.de.
Abstract
BACKGROUND/AIM: Osteotomy as the first step in surgery, provides access to the field and its application could influence the outcome. Nowadays, the conventional burr reduction is being challenged by newer sonic and ultrasonic methods. We investigated the bone structural integrity and metal attrition residues both in bone and the irrigation fluid. MATERIALS AND METHODS: Bovine ribs were cut using three methods. Bone cuts were studied using Environmental Scanning Electron Microscopy (ESEM) for tissue discrepancies and Scanning Electron Microscopy/Energy Dispersion X-Ray Microanalysis (SEM/EDX) for organic and inorganic debris. RESULTS: Better preservation of bone architecture was seen in piezo and sono surgery while metal attrition was not conclusive (p>0.05). Unlike in bone analyses, both bur and ultrasonic osteotomies showed statistically significant higher median inorganic detection per analysis (p=0.021 and p=0.037, respectively). CONCLUSION: Sono and piezo surgery proved to be less invasive while attrition properties were the same. Copyright
BACKGROUND/AIM: Osteotomy as the first step in surgery, provides access to the field and its application could influence the outcome. Nowadays, the conventional burr reduction is being challenged by newer sonic and ultrasonic methods. We investigated the bone structural integrity and metal attrition residues both in bone and the irrigation fluid. MATERIALS AND METHODS:Bovine ribs were cut using three methods. Bone cuts were studied using Environmental Scanning Electron Microscopy (ESEM) for tissue discrepancies and Scanning Electron Microscopy/Energy Dispersion X-Ray Microanalysis (SEM/EDX) for organic and inorganic debris. RESULTS: Better preservation of bone architecture was seen in piezo and sono surgery while metal attrition was not conclusive (p>0.05). Unlike in bone analyses, both bur and ultrasonic osteotomies showed statistically significant higher median inorganic detection per analysis (p=0.021 and p=0.037, respectively). CONCLUSION: Sono and piezo surgery proved to be less invasive while attrition properties were the same. Copyright
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