In the world of dentistry, handpieces are an essential tool for performing a wide variety of procedures. Two of the most commonly used types of handpieces are high speed and low speed handpieces. But what's the difference between the two and when should you use one over the other?
High speed handpieces, also known as "air-turbine" handpieces, are used for cutting, shaping, and polishing hard materials such as tooth enamel, composite resin, and metal restorations. They operate at speeds of 400,000 to 500,000 revolutions per minute (RPM) and are equipped with a bur (rotating cutting tool) that can quickly remove large amounts of material. They are most commonly used for procedures such as drilling, preparing tooth cavities, and removing old fillings.
Low speed handpieces, also known as "slow-speed" handpieces, are used for procedures that require more precision and control. They operate at speeds of 30,000 to 40,000 RPM and are equipped with a wide variety of attachments for different procedures such as polishing and sanding. Low speed handpieces are used for procedures such as polishing fillings and adjusting orthodontic appliances.
It's important to select the appropriate handpiece for the procedure, as using the wrong handpiece can lead to improper shaping, over-preparation, or even damage to the tooth or surrounding tissue. High speed handpieces are powerful tools that can quickly remove large amounts of material, but they can also cause more damage if used improperly. Low speed handpieces, on the other hand, are more delicate and precise, but they may not be as efficient at removing large amounts of material.
One of the key factors to consider when choosing a handpiece is the type of procedure being performed. For example, drilling and preparing tooth cavities would require a high-speed handpiece, while polishing and adjusting orthodontic appliances would require a low-speed handpiece.
In conclusion, high speed and low speed handpieces are both essential tools for bench testing. Choosing the right handpiece for the procedure is crucial to ensure proper shaping, precision, and to minimize the risk of damage to the tooth or surrounding tissue.