![]() ![]() Weight – the handle’s hollowness allows the instrument to be more lightweight and increases the clinician's tactile sensitivity.Texture – the texture of the instrument handle increases control, such as finger grip, and reduces hand fatigue.Diameter – the handles with larger diameters allow the instrument to be held easier and reduces muscle stress of the clinician’s fingers.Balance – when the working ends are aligned properly to the long axis of the instrument handle, finger pressure can be applied more effectively to reduce muscle fatigue on the clinician’s hands and/or forearm.The following are some factors to consider with the design of periodontal scalers: With the broad variation of instrument designs and materials, it allows dental professionals to implement periodontal therapy with reduced strain and increased comfort levels for both the clinician and the patient. The composition of hand instruments is continuously evolving, which is why it may be a challenge to find the proper instrument for the right clinical situation. Scalers are best used when their terminal shank, namely, the last portion of the functional shank closest to the working end, is angled slightly toward the surface of the tooth. ![]() Scalers have scraping edges on both sides of their blades and thus are fit for both mesial and distal surfaces of any tooth in the area in which they are being used. The anterior scaler (yellow ring) is straight, while the posterior scaler (orange ring) has an angled terminal shank (highlighted in red) to allow for easy access to the surfaces of posterior teeth. Use of a scaler below the gum line is likely to damage the gingiva (gums). While curettes are often universal in that they can be used on both supra- and sub-gingival calculus removals, scalers are restricted to supra-gingival use. Together with periodontal curettes, periodontal scalers are used to remove calculus from teeth. They differ from periodontal curettes, which possess a blunt tip. The working ends come in a variety of shapes and sizes, but they are always narrow at the tip, so as to allow for access to narrow embrasure spaces between teeth. Periodontal scalers are dental instruments used in the prophylactic and periodontal care of teeth (most often human teeth), including scaling and root planing. A posterior scaler shown in relation to a posterior tooth on a typodont. ![]() Dental tool Periodontal scaler Periodontal scalers have sharp tips to access tight embrasure spaces between teeth and are triangular in cross-section. ![]()
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