ADAP ADAP Dental Equipment and Instruments 2 — Questions and Answers
Question 1: Which handpiece speed range is typically used for polishing and finishing restorations?
- Low-speed (up to 30,000 RPM) (Correct answer)
- High-speed (up to 400,000 RPM)
- Ultra-speed (over 500,000 RPM)
- Medium-speed (100,000–200,000 RPM)
Correct answer: Low-speed (up to 30,000 RPM)
Low-speed handpieces (up to 30,000 RPM) are used for polishing, finishing, and procedures requiring greater control.
Question 2: The dental dam is used during procedures primarily to:
- Isolate the tooth and keep the field dry (Correct answer)
- Retract the lip
- Measure the depth of a pocket
- Assist in taking impressions
Correct answer: Isolate the tooth and keep the field dry
The dental dam isolates the working tooth, keeping it free from saliva and moisture for better access and infection control.
Question 3: Which instrument is used to measure periodontal pocket depths?
- Periodontal probe (Correct answer)
- Curette
- Scaler
- Explorer
Correct answer: Periodontal probe
A periodontal probe has millimeter markings and is inserted into the sulcus to measure pocket depth.
Question 4: Which of the following describes a curette instrument?
- A double-ended instrument with a rounded toe used for subgingival scaling (Correct answer)
- A single-ended sharp explorer for caries detection
- A flat-bladed instrument for removing cement
- A hinged instrument used for extraction
Correct answer: A double-ended instrument with a rounded toe used for subgingival scaling
A curette has a rounded toe and back, making it safe for subgingival scaling and root planing without damaging tissue.
Question 5: What is the function of a matrix band and retainer system in restorative dentistry?
- To provide a temporary wall that replaces a missing tooth surface during restoration (Correct answer)
- To hold the dental dam in place
- To mix amalgam or composite material
- To retract gingival tissue
Correct answer: To provide a temporary wall that replaces a missing tooth surface during restoration
A matrix band acts as an artificial wall to contain and shape restorative material when a proximal surface is missing.
Question 6: Which type of evacuation tip is used for saliva and small amounts of fluid (not large volumes)?
- Saliva ejector (Correct answer)
- High-volume evacuator (HVE)
- Air-water syringe
- Curing light tip
Correct answer: Saliva ejector
The saliva ejector is a low-volume suction device used to remove small amounts of saliva and fluids from the oral cavity.
ADAP ADAP Dental Equipment and Instruments 2
Which handpiece speed range is typically used for polishing and finishing restorations?