Evaluation of Surgical Bur Deformation and Bone Surface Roughness After Multiple Uses
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Purpose: The aim of the present in vitro study was to microscopically evaluate and describe the deformation of Lindeman surgical burs and the bone surface roughness after repeated osteotomies and sterilization cycles. Materials and Methods: Twenty-one Lindeman surgical burs were analyzed under scanning electron microscopy (SEM) to evaluate the damage of the bur%27s integrity after 0, 1, 3, 5, 7, or 9 osteotomies on bovine ribs. Eighteen bone specimens were obtained after osteotomy for roughness analysis using profilometry. One-way analysis of variance was used to compare the mean roughness values across the experimental groups, and P ≤.05 was considered to indicate statistical significance. Results: Representative SEM images illustrated that all analyzed burs presented with some type of deformation at both the tip and the body, even after their first use. The mean roughness values were independent of the number of uses (P >.05); however, the standard deviation increased with the number of uses of the burs. Conclusions: These results suggest that even after their first use, rotatory surgical burs will have some type of deformation and that their cutting efficiency on the bone will vary and will be difficult to predict. © 2019 American Association of Oral and Maxillofacial Surgeons
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Purpose: The aim of the present in vitro study was to microscopically evaluate and describe the deformation of Lindeman surgical burs and the bone surface roughness after repeated osteotomies and sterilization cycles. Materials and Methods: Twenty-one Lindeman surgical burs were analyzed under scanning electron microscopy (SEM) to evaluate the damage of the bur's integrity after 0, 1, 3, 5, 7, or 9 osteotomies on bovine ribs. Eighteen bone specimens were obtained after osteotomy for roughness analysis using profilometry. One-way analysis of variance was used to compare the mean roughness values across the experimental groups, and P ≤.05 was considered to indicate statistical significance. Results: Representative SEM images illustrated that all analyzed burs presented with some type of deformation at both the tip and the body, even after their first use. The mean roughness values were independent of the number of uses (P >.05); however, the standard deviation increased with the number of uses of the burs. Conclusions: These results suggest that even after their first use, rotatory surgical burs will have some type of deformation and that their cutting efficiency on the bone will vary and will be difficult to predict. © 2019 American Association of Oral and Maxillofacial Surgeons
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animal tissue; Article; bone deformation; bone density; bone surface roughness; bovine; comparative study; contact profilometry; controlled study; cortical bone; human; human tissue; in vitro study; mandible; musculoskeletal system parameters; nonhuman; osteotomy; scanning electron microscopy; trabecular bone; anatomy and histology; animal; rib; surface property; surgery; Animals; Cattle; Microscopy, Electron, Scanning; Osteotomy; Ribs; Surface Properties
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