👉 The mask fluid, also known as silicone-based lubricant or occlusive barrier, is a specialized substance used in dental procedures to create a protective, waterproof barrier between the oral tissues and the dental instruments or materials being used. This fluid is designed to minimize friction, reduce irritation, and prevent the transmission of fluids between the oral cavity and the instruments, enhancing patient comfort and the precision of dental work. It is particularly useful during procedures involving the soft tissues, such as frenectomies or periodontal treatments, where maintaining a dry field is crucial for optimal results and patient safety.