What is the primary use of hydrofluoric acid in dentistry?

Hydrofluoric acid is primarily used in dentistry to chemically roughen the surface of dental veneers. This process is essential as it enhances the bonding between the veneer and the tooth structure. When a veneer is applied, the surface needs to be prepared to create a strong adhesive interface; hydrofluoric acid achieves this by etching the veneer, allowing for better mechanical retention of the bonding agent.

The use of hydrofluoric acid for this purpose is crucial because it allows for a controlled etching, creating a micro-retentive surface that improves the longevity and effectiveness of the veneer. It is important for dental professionals to handle hydrofluoric acid with care due to its hazardous nature, ensuring that proper safety protocols are followed during its use in dental procedures.