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If a dental hygienist is using an ultrasonic scaler,which proximity is he or she likely in?
Vertebrae
The individual bones that make up the vertebral column (backbone) in vertebrates.
Intervertebral Disk
A fibrocartilaginous structure located between the vertebrae of the spine, acting as a shock absorber and allowing for flexibility.
Sciatica
A condition of pain going down the leg from the lower back, caused by irritation or compression of the sciatic nerve.
Cushion
A soft bag of material used to provide comfort, support, or decoration on furniture.
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