CPT Periodontal Instrumentation & Scaling Techniques Flashcards
6 cards from real CPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPT Periodontal Instrumentation & Scaling Techniques flashcards as text
How does the working end of a Gracey curette differ from a universal curette?
Answer: It has one cutting edge offset at 70 degrees
Gracey curettes are area-specific with one cutting edge offset at 70 degrees, while universal curettes have two usable cutting edges.
What is the primary function of the terminal shank on a periodontal instrument?
Answer: Connects to the working end and indicates blade angulation
The terminal shank connects to the working end and its orientation helps the clinician determine correct blade-to-tooth angulation.
When using an ultrasonic scaler subgingivally, which power setting is recommended?
Answer: Low power to reduce heat and tissue trauma
Low power settings are recommended for subgingival ultrasonic scaling to minimize heat generation and tissue trauma.
Which instrument is specifically designed for subgingival calculus detection?
Answer: 11/12 explorer (pigtail)
The 11/12 explorer (pigtail) is specifically designed for subgingival calculus detection due to its curved working end.
The Nabers probe (furcation probe) is used to:
Answer: Assess furcation involvement and horizontal bone loss between roots
The Nabers probe's curved design allows assessment of the degree of furcation involvement and extent of horizontal bone loss.
A feather or light exploratory stroke during instrumentation indicates:
Answer: A detection stroke used to sense calculus
A feather or light touch is characteristic of explorer detection strokes used to identify calculus and root irregularities.