What is the primary purpose of using a rubber dam during dental procedures?

The primary purpose of using a rubber dam during dental procedures is to keep the tooth dry. This isolation ensures that the working area is free from saliva, moisture, and blood, which can interfere with the effectiveness of dental materials, such as adhesives and sealants. A dry environment is vital for procedures like fillings, root canals, and other restorative work, as it enhances the bonding process and contributes to better clinical outcomes.

While improving visibility and protecting the patient are important benefits of using a rubber dam, they are secondary outcomes. A rubber dam does enhance the dentist's ability to see the operative site clearly by reducing distractions caused by saliva and other fluids. Additionally, it offers a layer of protection for the patient by preventing debris and instruments from entering the throat. However, the fundamental goal of achieving and maintaining a dry working area is why the use of a rubber dam is a standard practice in many dental procedures.