AI Article Synopsis
- The study aimed to assess the impact of different sharpening stones on the cutting angles of periodontal curettes (Gracey 5-6) using scanning electron microscopy.
- In the first phase, the researchers analyzed the cutting angles of fifteen curettes sharpened with varying stones, while the second phase focused on evaluating the root surfaces of 25 extracted teeth after being treated with these sharpened curettes.
- Results indicated that synthetic stones led to more abrasive and irregular cutting angles, while Arkansas stones produced smoother angles, but there were no significant differences in root surface irregularity across the groups tested.
Article Abstract
The objective of this study was to evaluate, through scanning electronic microscopy, the effect of sharpening with different sharpening stones on the cutting angle of periodontal curettes (Gracey 5-6), and the influence on root surfaces after debridement and planing. The experimental model consisted of two different phases. In the first, the cutting angles of fifteen stainless steel Gracey 5-6 curettes were analyzed under a scanning electronic microscope after being sharpened with different types of stones. In the second phase, the root surfaces of 25 newly extracted teeth were evaluated with a scanning electronic microscope after being debrided with curettes sharpened with different stones. Analysis of the results showed that the synthetic stones (aluminum oxide and carborundum) are more abrasive and produce more irregular cutting angles, whereas Arkansas stones are less abrasive and produce smoother and more defined cutting angles. There was no significant statistical differences among the five groups tested with regard to the degree of irregularity of the root surfaces after instrumentation.
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