|
Correct Answer: shank
the question asks which option represents one of the basic parts of a dental bur. among the choices given—tapered fissure plain cut, inverted cone, end cutting, and shank—the correct answer is "shank." dental burs are essential tools used in various dental procedures, primarily for cutting hard tissues like tooth or bone. they consist of three fundamental parts: the head, the neck, and the shank.
the "shank" is the part of the dental bur that fits into the dental drill, allowing the bur to be held securely during the procedure. there are different styles or classifications of shanks tailored to fit different types of dental drills. these include the long straight shank, the latch-type shank, and the friction grip shank. each type of shank has a specific design that matches the dental drill’s chuck, ensuring the bur remains stable and precise during operation.
the remaining choices in the question—tapered fissure plain cut, inverted cone, and end cutting—are not parts of the bur but rather types or shapes of the cutting head of the bur. these shapes determine the kind of work the bur can perform, such as removing decay, shaping the tooth, or creating space for dental fillings. each shape has specific applications in dental treatment, influencing the outcome of the dental procedure.
therefore, the correct answer is "shank," as it is one of the basic structural parts of a dental bur. the head and the neck are the other two main parts, with the head being the cutting or working end of the bur, and the neck serving as the connection between the head and the shank. understanding these components is crucial for selecting the appropriate bur for a given dental task.
|
