A fissure bur is a type of dental bur used in dentistry, characterized by its parallel lines that create a specific cutting action. Specifically, a straight fissure bur possesses parallel lines that move diagonally relative to its head.
Uses of Fissure Burs in Dentistry
Fissure burs are primarily used for:
- Cavity Preparation: They are excellent for creating parallel walls and flat floors within a tooth during cavity preparation, which is crucial for the proper retention of dental fillings.
- Cutting Tooth Structure: These burs are effective in efficiently cutting through tooth enamel and dentin.
- Creating Retentive Features: Fissure burs can also be used to create retentive features within the prepared cavity to help mechanically lock in restorative materials.
Types of Fissure Burs
While the reference specifically mentions "straight fissure burs," it is important to acknowledge there are other types.
- Straight Fissure Bur: The bur mentioned in the reference material.
- Tapered Fissure Bur: These burs are tapered, allowing for slightly divergent walls within a preparation.
